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<h3>Job Description</h3>
Job Description
 Now Hiring: Lead Engineer – Mechanical &amp; Civil Systems Location: Worcestor, MA (Hybrid, with occasional travel. Will assist with relocation) Employment Type: Full-time Work Authorization: Due to the nature of the projects, candidates must be a US Citizen or Permanent Resident of the United States.
We’re looking for a highly motivated Lead Engineer to manage and deliver small to mid-sized technical projects with a focus on mechanical and civil engineering systems. In this role, you'll take ownership of engineering analysis, design modifications, and failure investigations, while collaborating with cross-functional teams and clients. This is a great opportunity for an analytical thinker who excels in both field and office environments and thrives on solving complex engineering challenges.
 What You’ll Do:
<ul>
<li>
Perform engineering calculations and root cause analysis using client-provided data
</li>
<li>
Develop and refine plant design changes ensuring compliance with applicable codes and standards
</li>
<li>
Lead onsite implementation of system modifications and support field walkdowns
</li>
<li>
Evaluate pressure vessel and piping failures and recommend improvements
</li>
<li>
Analyze degradation mechanisms such as Flow-Accelerated Corrosion and MIC
</li>
<li>
Support geometry and structural evaluations of piping and supports
</li>
<li>
Communicate directly with clients and stakeholders, ensuring timely response to technical requests
</li>
<li>
Lead small engineering teams and contribute to successful project delivery
</li>
</ul>
✅ What You Bring:
<ul>
<li>
Bachelor's degree in Mechanical or Civil Engineering (MS or MBA is a plus)
</li>
<li>
Project management experience leading engineering teams (≤5 engineers) for power generation projects
</li>
<li>
PE license in any state (or PEng in Canada) required
</li>
<li>
Experience with FEA tools and stress analysis techniques
</li>
<li>
Familiarity with relevant codes and standards (ASME, AISC, etc.)
</li>
<li>
Experience with root cause and metallurgical failure analysis
</li>
<li>
Utility or field experience with complex mechanical systems (BWR/PWR experience a plus)
</li>
<li>
Proficient with tools like AutoCAD, AutoPIPE, and Microsoft Office
</li>
<li>
Strong communication, report writing, and client-facing skills
</li>
<li>
Willingness to travel occasionally for field assignments
</li>
</ul>
This role is ideal for an engineering professional who is hands-on, solutions-oriented, and ready to lead impactful projects from concept through execution.
 Ready to take the lead on challenging, high-value projects? Apply today!

Lead Engineer - Mechanical / Civil

<h3>Job Description</h3>
Job Description
Trystar is at the forefront of advancing power solutions, charged and driven by a committed, dynamic team, tackling complex challenges, and creating innovative solutions. Safety and integrity aren’t just buzzwords. They are the north star guiding us as we aspire to wow our customers every day. We’ve created power solutions that are not only durable and unique but are also the result of serious teamwork from every corner of our organization. Individually and collectively, every team member at Trystar plays for each other and strives to deliver unmatched value and 100% accuracy to our customers every single day.
As a big name and pioneer in power solutions, we’re not just part of the power conversation – we’re shaping its future, and we’re doing so across diverse industry sectors including healthcare, data centers, entertainment, education, government, and commercial construction – just to name a few! We’re committed to growing and evolving our product lineup to stay on top of the game and that includes leaning into sustainable, resilient, and renewable energy solutions.
Our cutting-edge headquarters in Faribault, MN, is partially solar- and wind-powered by our own microgrid! You’ll find that we’re also pushing boundaries across the country at our additional facilities in Troy, MI; Houston, TX; Merrimack, NH; Burnsville, MN; Murfreesboro, TN; Waukesha, WI; and in Montreal, Canada. Together, we are Trystar, where we power the future and nurture innovation for a brighter tomorrow.
Trystar’s team members are our most important asset, we are in search of a Principal Engineer - Power Electronics Design to join our innovative engineering team at our Merrimack, NH, site. As a key contributor, you will leverage your extensive experience in complex power stage topology design to drive the development of cutting-edge power conversion systems. Your expertise across multiple disciplines will be critical in collaborating on new system design architectures and leading projects from concept to validation through all phases of the design cycle. Join Trystar and contribute to pioneering advancements in power and instrumentation systems. Apply your expertise to lead innovative projects and make a significant impact in the fields of power electronics control, electrical power systems, and power conditioning design engineering.
We are looking for people who believe in our guiding principles and values of:
<ul>
<li>Safety – We believe everyone should leave Trystar facilities in the same or better condition than when they arrived.</li>
<li>Integrity – We’re honest, transparent, and committed to doing what’s right.</li>
<li>Customer focus – We have relentless focus on our customers and their success.</li>
<li>Right with speed – We use good judgement, make thoughtful decisions quickly, and execute them with purpose and intensity.</li>
<li>Play for each other – We’re a team. We show up for each other and we know that through teamwork we achieve greatness.</li>
<li>Champion change – We know adaptation and improvement are requirements to survive and to thrive.</li>
<li>Enjoy the journey – We create an environment where our team feels appreciated and has fun along the way.</li>
</ul>
In this role you will get to:
<ul>
<li>Define, develop, and create power, analog, and digital circuitry architectures for high power, high voltage, high frequency switching, multi-phase, bidirectional AC power inverters and interleaved DC-DC converters utilizing Si and SiC IGBT, MOSFET, and SCR devices. </li>
<li>Design power stages at voltages up to 1500 VDC / 600 VAC, with power ranging from 10-800 kW.</li>
<li>Design power circuits and all supporting circuity such as fan control and monitoring, active and passive pre-charge/bleed, input/output power filtering, DC links, snubbers, dampers, clamps, relay drives, etc. </li>
<li>Collaborate with hardware designers, mentor junior hardware designers, and other engineers engaged in the design, validation, and commercialization of power electronics.</li>
<li>Generate and manage comprehensive technical documentation.</li>
<li>Lead design reviews and technical discussions, fostering a culture of technical excellence.</li>
<li>Develop and manage detailed project scope and schedules.</li>
</ul>
Job Requirements:
BASIC QUALIFICATIONS
<ul>
<li>Bachelor’s degree in Electrical / Electronics Engineering (BSEE) with 10+ years of relevant industrial experience in power conversion and controls or a Master of Science in Electrical / Electronics Engineering (MSEE) with 5+ years of relevant industrial experience.</li>
<li>Extensive experience in analog design engineering, focusing on power and instrumentation systems, as well as communications, fault monitoring, and protection schemes.</li>
<li>Experience defining software and programable logic requirements for modulation and control of power stages and systems. </li>
<li>Experience defining magnetic components, filter topologies, and EMC/EMI compliance approaches. </li>
<li>Ability to specify test strategies and methods for verification, production, and regulatory compliance prior to product design. </li>
<li>Experience collaborating with PCB designers and mechanical engineers (MEs) on PCB floorplan, mechanical packaging, thermal and electrical interfaces, and cooling approaches. </li>
<li>Highly motivated, fast learner with exceptional attention to detail that thrives in a team environment.</li>
<li>Document control, schematic capture, simulation, and modeling experience in a variety of tools such as LTspice, MATLAB/Simulink, Python, SolidWorks, PLM, etc. </li>
</ul>
ADDITIONAL QUALIFICATIONS
<ul>
<li>Magnetic designs for transformers, inductors, and common-mode chokes using ferrite, powdered metal, and amorphous tape materials with round, helical, foil, and litz windings. </li>
<li>Digital circuits including DSPs, FPGA/PLDs, real time clocks, and communications (RS-485, CAN, Ethernet, SPI, I2C). </li>
<li>NFPA 70E certification.</li>
<li>Position may require up to 20% travel within North America.</li>
</ul>

Principal Engineer - Power Electronics Design

<h3>Job Description</h3>
Job Description
Toole Design Group in Boston, MA is looking to hire an experienced and talented full-time Principal Civil Engineer. Do you have a strong background in civil engineering with final roadway/corridor design experience? Do you desire to be a part of a collaborative design process for sustainable multimodal transportation projects, but believe an auto-centric approach is outdated? Are you passionate about creating quality construction documents and safe streets for all, which make communities more livable? Would you like to work for a firm that is committed to the well-being of its employees? If so, please consider joining our Boston team. 
 This engineering position with a focus on final design construction plan development and corridor modeling earns a competitive salary and great benefits, including medical, dental, vision, life insurance, disability, retirement, a health savings account (HSA), and a flexible spending account (FSA). We practice what we preach and ensure that our employees also have access to transportation by providing them with financial incentives to bike, walk, or use transit for a better quality of life. 
About Toole Design
Toole Design is the leading engineering, planning, and landscape architecture firm specializing in multimodal transportation in North America. Since our start in 2003 as a single office in Maryland, we have expanded throughout the United States. Our talented team of planners, landscape architects, urban designers, and engineers are committed to delivering quality work that meets the needs of all people, regardless of age, ability, race or gender. As an Engineering News-Record top 500 design firm, we have also been named a "best firm to work for" and have one of the lowest staff turnover rates in the industry.
Every project our employees deliver directly and positively affects our communities. We are industry-leading experts, and we work hard to encourage a collaborative and team-oriented environment.
A Day in the Life of a Principal Engineer
As a Principal Engineer, you will lead and mentor an interdisciplinary team to deliver multimodal transportation infrastructure in a wide range of contexts from roadway reconstructions and streetscapes in highly urban settings to signature trail projects in suburban and rural areas that highlight and enhance the natural environment. You use programs like AutoCAD in order to fulfill production work on your projects as needed and/or supervise others doing that production work. You will manage projects and guide your team through design development, design review, bid package development, permitting, and answer questions during construction. You will work with your team to ensure that our projects are consistently of the highest quality.
You will assist Engineering Group Managers and/or the Engineering Director in the Northeast by independently managing and leading company projects in the region. You'll be at the table with clients and colleagues from a variety of disciplines, delivering projects to construction. You will also be participating in business development, project pursuits, and play a key role in the firm's quality initiatives. In an industry that is constantly changing, you'll be at the forefront of delivering creative solutions to challenging projects.
Qualifications of a Principal Engineer:
<ul>
<li>A Professional Engineering license with ability to obtain in MA and/or RI</li>
<li>A bachelor's or master's degree in civil engineering, or relevant field</li>
<li>At least 13 years of relevant engineering experience </li>
<li>Experience serving as a project manager or design lead role</li>
<li>A broad knowledge base in civil engineering, with specific experience in roadway design, drainage design, geometric design, 3D modeling and design of accessible public spaces</li>
<li>Experience developing construction documents</li>
<li>Interest in multimodal and active transportation design</li>
<li>Experience in managing staff</li>
<li>Proficiency in Computer Automated Design (AutoCAD or MicroStation) and design software (Civil 3D, GEOPAK or InRoads)</li>
<li>Experience managing engineering projects in the Northeast</li>
<li>Experience in preparing proposals and scope/fees</li>
<li>Interest in business development</li>
</ul>
Any of the following would be considered a plus, though not a requirement: 
<ul>
<li>Exposure to construction management</li>
<li>Experience analyzing and designing stormwater infrastructure</li>
<li>Experience using stormwater design software such as HydroCAD or HydroFlow</li>
<li>Experience with right of way and/or easement acquisition process</li>
<li>Traffic engineering and Signal design experience</li>
<li>Specific knowledge of advanced multimodal roadway design and NACTO guidance</li>
<li>Understanding of MUTCD standards at the state and federal level</li>
<li>Experience working on transit projects</li>
<li>Experience with bicycle, pedestrian, transit, and Safe Routes to School issues for all ages and abilities</li>
<li>Experience in Complete Streets, bikeway, and crossing design</li>
<li>Experience in preparing transportation and local agency permit documents</li>
</ul>
You'll be great here if:
<ul>
<li>You enjoy generating and evaluating engineering solutions that can be constructed and maintained</li>
<li>You have strong leadership skills and enjoy mentoring junior staff</li>
<li>You are passionate about sustainability and the opportunity to work on challenging multimodal projects that make communities more livable</li>
<li>You enjoy producing high-quality work products and seeing your projects get built</li>
<li>You have strong communication skills, whether written, verbal, or graphical</li>
<li>You can build relationships, bring enthusiasm to exciting projects, and are detail oriented with strong problem-solving skills</li>
<li>You have experience in Civil - Roadway - Highway design and are interested in moving into Complete Streets Design</li>
</ul>
Work Schedule for a Principal Engineer
This full-time position typically works a hybrid schedule of 40 hours a week, with at least two to three days a week in the office. We also provide employees with the flexibility and necessary equipment to work from home 2-3 days per week. The Boston office of Toole Design is conveniently located in downtown Boston, blocks from multiple MBTA subway lines. The office is easily accessed on foot, by bicycle, and via transit.
Ready to Join our Boston Team? We understand your time is valuable, so we have a quick and easy application process. If you feel that you would be right for this Principal Engineer position, please fill out our application by clicking on the link on this page. 
At Toole Design, we have a collaborative culture where people of all backgrounds come together to share ideas and build better, more inclusive communities. We encourage everyone, including those from underrepresented communities - women, people of color, LGBTQIA+, immigrants, first-generation college students/graduates, those with disabilities and people at all the intersections in between - to apply. Even if you don't think your current skill set checks every box below, but this role seems to align with your strengths, we want to hear from you.We're proud that about half of our managers are women and are committed to achieving diversity in our leadership to better represent the communities where we work, as well. Toole Design is a woman-owned business and an equal opportunity employer (EO/AA/VEV/Disabled employer).
Individuals may request accommodations or assistance with the application process by contacting 301-927-1900 and asking for Human Resources or emailing <a href="mailto:HR@tooledesign.com" target="_blank">HR@tooledesign.com</a>.
For more information about Toole Design, visit our website and follow us on LinkedIn, Instagram, or Facebook.
 Job Posted by ApplicantPro

Principal Civil Engineer

<h3>Job Description</h3>
Job DescriptionDescription:
Toole Design Group in Boston, MA is looking to hire an experienced and talented full-time Principal Civil Engineer. Do you have a strong background in civil engineering with final roadway/corridor design experience? Do you desire to be a part of a collaborative design process for sustainable multimodal transportation projects, but believe an auto-centric approach is outdated? Are you passionate about creating quality construction documents and safe streets for all, which make communities more livable? Would you like to work for a firm that is committed to the well-being of its employees? If so, please consider joining our Boston team.
 
This engineering position with a focus on final design construction plan development and corridor modeling earns a competitive salary and great benefits, including medical, dental, vision, life insurance, disability, retirement, a health savings account (HSA), and a flexible spending account (FSA). We practice what we preach and ensure that our employees also have access to transportation by providing them with financial incentives to bike, walk, or use transit for a better quality of life.
 
About Toole Design
Toole Design is the leading engineering, planning, and landscape architecture firm specializing in multimodal transportation in North America. Since our start in 2003 as a single office in Maryland, we have expanded throughout the United States. Our talented team of planners, landscape architects, urban designers, and engineers are committed to delivering quality work that meets the needs of all people, regardless of age, ability, race or gender. As an Engineering News-Record top 500 design firm, we have also been named a "best firm to work for" and have one of the lowest staff turnover rates in the industry.
 
Every project our employees deliver directly and positively affects our communities. We are industry-leading experts, and we work hard to encourage a collaborative and team-oriented environment. 
A Day in the Life of a Principal Engineer
As a Principal Engineer, you will lead and mentor an interdisciplinary team to deliver multimodal transportation infrastructure in a wide range of contexts from roadway reconstructions and streetscapes in highly urban settings to signature trail projects in suburban and rural areas that highlight and enhance the natural environment. You use programs like AutoCAD in order to fulfill production work on your projects as needed and/or supervise others doing that production work. You will manage projects and guide your team through design development, design review, bid package development, permitting, and answer questions during construction. You will work with your team to ensure that our projects are consistently of the highest quality.
 
You will assist Engineering Group Managers and/or the Engineering Director in the Northeast by independently managing and leading company projects in the region. You’ll be at the table with clients and colleagues from a variety of disciplines, delivering projects to construction. You will also be participating in business development, project pursuits, and play a key role in the firm’s quality initiatives. In an industry that is constantly changing, you’ll be at the forefront of delivering creative solutions to challenging projects.
 
Work Schedule for a Principal Engineer
This full-time position typically works a hybrid schedule of 40 hours a week, with at least two to three days a week in the office. We also provide employees with the flexibility and necessary equipment to work from home 2-3 days per week. The Boston office of Toole Design is conveniently located in downtown Boston, blocks from multiple MBTA subway lines. The office is easily accessed on foot, by bicycle, and via transit.
 
Ready to Join our Boston Team? We understand your time is valuable, so we have a quick and easy application process. If you feel that you would be right for this Principal Engineer position, please fill out our application by clicking on the link on this page.
 
At Toole Design, we have a collaborative culture where people of all backgrounds come together to share ideas and build better, more inclusive communities. We encourage everyone, including those from underrepresented communities - women, people of color, LGBTQIA+, immigrants, first-generation college students/graduates, those with disabilities and people at all the intersections in between - to apply. Even if you don't think your current skill set checks every box below, but this role seems to align with your strengths, we want to hear from you.
 
We're proud that about half of our managers are women and are committed to achieving diversity in our leadership to better represent the communities where we work, as well. Toole Design is a woman-owned business and an equal opportunity employer (EO/AA/VEV/Disabled employer).
 
Individuals may request accommodations or assistance with the application process by contacting 301-927-1900 and asking for Human Resources or emailing <a href="mailto:HR@tooledesign.com" target="_blank">HR@tooledesign.com</a>.
 
For more information about Toole Design, visit our website and follow us on LinkedIn, Instagram, or Facebook.
Requirements:
Qualifications of a Principal Engineer:
<ul>
<li>A Professional Engineering license with ability to obtain in MA and/or RI</li>
<li>A bachelor's or master's degree in civil engineering, or relevant field</li>
<li>At least 13 years of relevant engineering experience</li>
<li>Experience serving as a project manager or design lead role</li>
<li>A broad knowledge base in civil engineering, with specific experience in roadway design, drainage design, geometric design, 3D modeling and design of accessible public spaces</li>
<li>Experience developing construction documents</li>
<li>Interest in multimodal and active transportation design</li>
<li>Experience in managing staff</li>
<li>Proficiency in Computer Automated Design (AutoCAD or MicroStation) and design software (Civil 3D, GEOPAK or InRoads)</li>
<li>Experience managing engineering projects in the Northeast</li>
<li>Experience in preparing proposals and scope/fees</li>
<li>Interest in business development</li>
</ul>
Any of the following would be considered a plus, though not a requirement:
<ul>
<li>Exposure to construction management</li>
<li>Experience analyzing and designing stormwater infrastructure</li>
<li>Experience using stormwater design software such as HydroCAD or HydroFlow</li>
<li>Experience with right of way and/or easement acquisition process</li>
<li>Traffic engineering and Signal design experience</li>
<li>Specific knowledge of advanced multimodal roadway design and NACTO guidance</li>
<li>Understanding of MUTCD standards at the state and federal level</li>
<li>Experience working on transit projects</li>
<li>Experience with bicycle, pedestrian, transit, and Safe Routes to School issues for all ages and abilities</li>
<li>Experience in Complete Streets, bikeway, and crossing design</li>
<li>Experience in preparing transportation and local agency permit documents</li>
</ul>

<h3>Job Description</h3>
Job DescriptionDescriptionOPENING DATE: 08/13/2025 CLOSING DATE: 09/12/2025 SERIES/GRADE: 0802-05 TYPE OF POSITION: Trust Temporary (Non-Federal), Not To Exceed 1 year&nbsp; DIVISION: Central Engineering LOCATION:&nbsp; Cambridge, MA AREA OF CONSIDERATION: This position is open to all eligible candidates. What are Trust Fund Positions?Trust Fund positions are unique to the Smithsonian. They are paid for from a variety of sources, including the Smithsonian endowment, revenue from our business activities, donations, grants and contracts. Trust employees are not part of the civil service, nor does trust fund employment lead to Federal status. The salary ranges for trust positions are generally the same as for federal positions and in many cases trust and federal employees work side by side. Trust employees have their own benefit program, which may include Health, Dental &amp; Vision Insurance, Life Insurance, Transit/Commuter Benefits, Accidental Death and Dismemberment Insurance, Annual and Sick Leave, Family Friendly Leave, 403b Retirement Plan, Discounts for Smithsonian Memberships, Museum Stores and Restaurants, Credit Union, Flexible Spending Account (Health &amp; Dependent Care).&nbsp; Conditions of Employment
<ul>
<li>Pass Pre-employment Background Check and Subsequent Background Investigation, as required.</li>
<li>Complete a Probationary Period if applicable.&nbsp;</li>
<li>Maintain a Bank Account for Direct Deposit/Electronic Transfer.</li>
<li>The position is open to all candidates eligible to work in the United States.&nbsp; Proof of eligibility to work in U.S. is not required to apply.</li>
<li>Applicants must meet all qualification and eligibility requirements within 30 days of the closing date of this announcement.&nbsp;</li>
</ul>
 OVERVIEWINTRODUCTION The Smithsonian Astrophysical Observatory (SAO) is at the forefront, internationally, of the scientific exploration of the universe. SAO combines its resources with those of the Harvard College Observatory to form the Harvard-Smithsonian Center for Astrophysics (CfA). The CfA is the best-known astrophysics center in the world. Its programs range from ground-based astronomy and astrophysics research to space-based research, the engineering and development of major scientific instrumentation for space launch and use in large ground-based facilities, and research designed to improve science education. The research objectives of SAO are carried out primarily with the support of Government and Smithsonian Institution funds, with additional philanthropic support.&nbsp; Government funds are in the form of Federal appropriations or the form of contracts and grants from other agencies. In contrast, Institution funds are available to SAO through grants from the Institution's Restricted Funds, Special Purpose Funds, Bureau Activities, Business Activities, and non-Federal contracts and grants.&nbsp; SUMMARY This position will provide on-the-job engineering training and experience in the field of astrophysics. In particular, the work will involve assisting engineers in technology development for use in large-scale space telescopes, as well as other externally funded engineering projects. MAJOR DUTIES Assist engineering staff with design, assembly, integration, and test of HelioSwarm faraday cup instruments.
<ul>
<li>Using SolidWorks, design Ground Support Equipment (GSE) to be used to inspect the multiple grid assemblies.
<ul>
<li>2-Axis open cell linear stage system</li>
<li>Support grid cassette in center with repeatable clocking</li>
<li>Small video camera with ability to zoom in on grids and look for defects</li>
<li>Use Labview to assist in programming a 2 axis scan that looks at every wire cell in the grid</li>
<li>Work with Electrical Engineering</li>
</ul>
</li>
<li>Gain lab experience by supporting the assembly of the Engineering Model (EM) Faraday Cup
<ul>
<li>Assist in the design of GSE required to support and align the subassemblies using learned knowledge from prototype&nbsp;</li>
<li>Assist in assembling EM Grid Cassette assemblies; understand the use of 2D scanner for aid in assembly.</li>
<li>Assist in assembling the EM Entrance Grid Module, EM High Voltage Modulator Module, EM Limiting Aperture Module, EM Collector Module</li>
</ul>
</li>
<li>Participate in Thermal Vacuum Testing, including Calibration of the Engineering Model (EM) Faraday Cup</li>
<li>Perform other duties as assigned&nbsp;</li>
</ul>
 QUALIFICATION REQUIREMENTSBasic Requirements:Grade 5: Successful completion of a full 4-year course of study leading to a bachelor's degree (a) with major study in an appropriate field of engineering, construction, or industrial technology; or (b) that included at least 24 semester hours in any combination of courses such as those shown above for GS-3 (or equivalent). At least 6 of the 24 semester hours must have been in drafting if the position has been designated by a drafting area of specialization. For information on the qualification requirements for IS-0802 Engineering Aide please click on the following link: <a href="https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/engineering-technical-series-0802/" target="_blank">https://www.opm.gov/policy-data-oversight/classification-qualifications…</a> Knowledge, Skills, and Abilities required:&nbsp;
<ul>
<li>&nbsp;Basic understanding of mechanical engineering.</li>
<li>&nbsp;Knowledge of, and skill in applying, basic or commonly used rules, procedures, or operations acquired through classroom or on-the-job training in the field of Engineering.</li>
<li>Basic knowledge of Engineering, as might be obtained through secondary school or undergraduate course work.&nbsp;</li>
<li>Knowledge of software such as: MS-Excel, MS-Word, and 3D CAD tools such as SolidWorks&nbsp;</li>
</ul>
Education completed outside the United States must be deemed equivalent to higher education programs of U.S. Institutions by an organization that specializes in the interpretation of foreign educational credentials. This documentation is the responsibility of the applicant and should be included as part of your application package.&nbsp;Any false statement in your application may result in rejection of your application and may also result in termination after employment begins.&nbsp;&nbsp;Join us in "Inspiring Generations through Knowledge and Discovery."&nbsp; Resumes should include a description of your paid and non-paid work experience that is related to this job; starting and ending dates of job (month and year); and average number of hours worked per week. &nbsp; What To Expect Next: Once the vacancy announcement closes, a review of your resume will be compared against the qualification and experience requirements related to this job. After review of applicant resumes is complete, qualified candidates will be referred to the hiring manager.&nbsp;Relocation expenses are not paid. The Smithsonian Institution provides reasonable accommodation to applicants with disabilities where appropriate. Applicants requiring reasonable accommodation should contact <a href="mailto:hr@cfa.harvard.edu" target="_blank">hr@cfa.harvard.edu</a>. Determinations on requests for reasonable accommodation will be made on a case-by-case basis.&nbsp; To learn more, please review the Smithsonian’s Accommodation Procedures (<a href="https://www.si.edu/OEO/IndividualswithDisabilities" target="_blank">https://www.si.edu/OEO/IndividualswithDisabilities</a>).&nbsp;&nbsp;The Smithsonian Institution is an Equal Opportunity Employer. To review The Smithsonian's EEO program information, please click the following: <a href="https://www.si.edu/oeo&amp;nbsp" target="_blank">https://www.si.edu/oeo&amp;nbsp</a>; &nbsp; The Smithsonian Astrophysical Observatory is an equal opportunity employer. Please visit the SAO website at <a href="http://www.cfa.harvard.edu/" target="_blank">http://www.cfa.harvard.edu/</a>

Engineering Aide (Mechanical), IS-0802- 5

<h3>Job Description</h3>
Job DescriptionJob Summary The Director of Engineering will lead the engineering efforts behind our Shopify Plus and Recharge-powered eCommerce experience. This role is ideal for a senior-level developer who has transitioned into technical leadership—someone who can still write high-quality code while guiding both internal and external engineering partners. You will be responsible for front-end and back-end development, architecture, and performance, bringing the vision of our growth, product, and customer experience teams to life. This role is strictly focused on engineering and does not include IT-related responsibilities (e.g., device management, internal systems, help desk support).Duties &amp; Responsibilities Shopify + Recharge Engineering:
<ul>
<li>
Architect and build scalable, high-performance Shopify Plus storefronts using custom Liquid, Hydrogen, React, and Next.js
</li>
<li>
Lead development of Recharge subscription flows, API-based enhancements, and checkout customizations
</li>
<li>
Own and evolve our eCommerce codebase, ensuring clean, maintainable code and version control best practices
</li>
<li>
Drive continuous optimization across site speed, SEO, and mobile responsiveness
</li>
</ul>
Technical Project Ownership:
<ul>
<li>
Translate cross-functional goals into clear technical requirements and timelines
</li>
<li>
Collaborate with growth, retention, and CX teams to ship features that boost conversion, LTV, and customer satisfaction
</li>
<li>
Implement and maintain pixel/event tracking infrastructure for analytics and marketing teams (GA4, Meta, etc.)
</li>
<li>
Guide third-party dev agencies and freelance engineers to ensure timely, high-quality delivery
</li>
</ul>
Cross-Functional Collaboration:
<ul>
<li>
Serve as the technical expert for projects involving site experience, retention features, and integrations with third-party tools (Klaviyo, Loop Returns, Zendesk, Postscript, etc.)
</li>
<li>
Partner with Product and Marketing on A/B testing, landing page builds, and funnel experimentation
</li>
<li>
Ensure smooth data flow and performance visibility from ad click to checkout to subscription renewal
</li>
</ul>
Education &amp; Experience:
<ul>
<li>
10+ years of hands-on experience as a front-end or full-stack developer
</li>
<li>
7+ years of experience working specifically in Shopify Plus and Recharge environments
</li>
<li>
Proven experience owning Shopify storefront builds end-to-end, including headless implementations
</li>
<li>
Strong track record of cross-functional collaboration in DTC or eCommerce companies
</li>
</ul>
Skills &amp; Abilities:
<ul>
<li>
Proficient in Liquid, JavaScript (React/Next.js), HTML/CSS, and Git
</li>
<li>
Skilled in working with Shopify APIs, Recharge APIs, and custom app integrations
</li>
<li>
Strong knowledge of pixel architecture, event tracking, and tagging frameworks (GA4, Meta, TikTok)
</li>
<li>
Comfortable operating in a high-growth, fast-paced environment with shifting priorities
</li>
<li>
Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders
</li>
<li>
Passion for clean code, fast sites, happy customers, and results-driven engineering
</li>
</ul>
 This is a remote position.&nbsp;
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uYNPiMBrc1

Director of Engineering

<h3>Job Description</h3>
Job DescriptionDescription:
Essco Calibration Laboratory, one of the largest accredited calibration laboratories in the US, is looking for a RF Test Equipment Calibration Technician to join the team. Positions are available on the first and second shift.
 
Seeking a dynamic, self-motivated RF Calibration Technician to calibrate a wide range of high frequency test equipment in our NVLAP accredited commercial calibration laboratory.
Requirements:
<ul>
<li>Three years experiences as a bench technician</li>
<li>Military PMEL training or equivalent formal technical training</li>
<li>Experience calibrating Spectrum Analyzers, Network Analyzers, Signal Generators, Pulse Generators, Frequency Counters and Power Meters using manual and automated (SureCal/MetCal) procedures</li>
<li>Able to apply metrology experience to a wide range electronic instrumentation</li>
<li>Familiar with the requirements of ISO 17025, ISO 9001 and ANSI/NCSL Z-540</li>
<li>Computer literate and ability to use lab management software.</li>
</ul>
Essco offers an outstanding benefits &amp; compensation package including medical, dental, vision, life, 401(k) with match, long and short term disability, paid time off and tuition reimbursement along with the opportunity to truly be part of a team environment. Relocation assistance available. Please visit our website at <a href="http://www.esscolab.com" target="_blank">www.esscolab.com</a> for more information.

RF Test Equipment Calibration Technician

<h3>Job Description</h3>
Job DescriptionDescriptionOPENING DATE: 08/15/2025 CLOSING DATE: 09/15/2025 SERIES/GRADE: 0802/03 TYPE OF POSITION: Trust Temporary (Non-Federal), Not To Exceed 1 year&nbsp; DIVISION: Central Engineering LOCATION:&nbsp; Cambridge, MA AREA OF CONSIDERATION: This position is open to all eligible candidates. What are Trust Fund Positions?Trust Fund positions are unique to the Smithsonian. They are paid for from a variety of sources, including the Smithsonian endowment, revenue from our business activities, donations, grants and contracts. Trust employees are not part of the civil service, nor does trust fund employment lead to Federal status. The salary ranges for trust positions are generally the same as for federal positions and in many cases trust and federal employees work side by side. Trust employees have their own benefit program, which may include Health, Dental &amp; Vision Insurance, Life Insurance, Transit/Commuter Benefits, Accidental Death and Dismemberment Insurance, Annual and Sick Leave, Family Friendly Leave, 403b Retirement Plan, Discounts for Smithsonian Memberships, Museum Stores and Restaurants, Credit Union, Flexible Spending Account (Health &amp; Dependent Care).&nbsp; Conditions of Employment
<ul>
<li>Pass Pre-employment Background Check and Subsequent Background Investigation, as required.</li>
<li>Complete a Probationary Period if applicable.&nbsp;</li>
<li>Maintain a Bank Account for Direct Deposit/Electronic Transfer.</li>
<li>The position is open to all candidates eligible to work in the United States.&nbsp; Proof of eligibility to work in U.S. is not required to apply.</li>
<li>Applicants must meet all qualification and eligibility requirements within 30 days of the closing date of this announcement.&nbsp;</li>
</ul>
 OVERVIEWINTRODUCTION The Smithsonian Astrophysical Observatory (SAO) is at the forefront, internationally, of the scientific exploration of the universe. SAO combines its resources with those of the Harvard College Observatory to form the Harvard-Smithsonian Center for Astrophysics (CfA). The CfA is the best-known astrophysics center in the world. Its programs range from ground-based astronomy and astrophysics research to space-based research, the engineering and development of major scientific instrumentation for space launch and use in large ground-based facilities, and research designed to improve science education. The research objectives of SAO are carried out primarily with the support of Government and Smithsonian Institution funds, with additional philanthropic support.&nbsp; Government funds are in the form of Federal appropriations or the form of contracts and grants from other agencies. In contrast, Institution funds are available to SAO through grants from the Institution's Restricted Funds, Special Purpose Funds, Bureau Activities, Business Activities, and non-Federal contracts and grants.&nbsp; SUMMARY This is the position of Electrical Engineering Aide, Central Engineering Department, Smithsonian Astrophysical Observatory.&nbsp; The purpose of the position is to provide systems engineering support to various projects&nbsp; MAJOR DUTIES
<ul>
<li>Assist engineering staff with the assembly and testing of HelioSwarm Faraday cup instruments.</li>
<li>Assist with the installation of the electrical harnessing and systems for the custom Thermal Vacuum (TVAC) chamber thermocouple system.&nbsp;</li>
<li>Assist with monitoring Labview/Python temperature monitoring and logging code for operations</li>
<li>Assist with automation tasks using Labview/python for:
<ul>
<li>Monitoring and logging of voltages and currents during test activities</li>
<li>Assist with operating power supplies for test setup - including suppressor voltage, high voltage, and analog system power.</li>
<li>Assist in the control of Ion Gun using Kimball Physics Labview driver</li>
<li>Support the development of motion control software for faraday cup positioning in the chamber (Rotary and X-Y positioning)</li>
</ul>
</li>
</ul>
 QUALIFICATION REQUIREMENTSBasic Requirements:Grade 3: Successful completion of 1 year of post-secondary study that included at least 6 semester hours in any combination of courses such as engineering, engineering or industrial technology, construction, physics, drafting, surveying, physical science, or mathematics. For information on the qualification requirements for IS-0802 Engineering Aide please click on the following link: <a href="https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/engineering-technical-series-0802/" target="_blank">https://www.opm.gov/policy-data-oversight/classification-qualifications…</a> Knowledge, Skills, and Abilities required:&nbsp; ●&nbsp; &nbsp; &nbsp; Basic understanding of electrical engineering.●&nbsp; &nbsp; &nbsp; Knowledge of, and skill in applying, basic or commonly used rules, procedures, or operations acquired through classroom or on-the-job training in the field of Engineering.●&nbsp; &nbsp; &nbsp; Basic knowledge of Engineering, as might be obtained through secondary school or undergraduate coursework.&nbsp;●&nbsp; &nbsp; &nbsp; Basic knowledge of software such as: Microsoft Word, Excel, and Visio. Education completed outside the United States must be deemed equivalent to higher education programs of U.S. Institutions by an organization that specializes in the interpretation of foreign educational credentials. This documentation is the responsibility of the applicant and should be included as part of your application package.&nbsp;Any false statement in your application may result in rejection of your application and may also result in termination after employment begins.&nbsp;&nbsp;Join us in "Inspiring Generations through Knowledge and Discovery."&nbsp; Resumes should include a description of your paid and non-paid work experience that is related to this job; starting and ending dates of job (month and year); and average number of hours worked per week. &nbsp; What To Expect Next: Once the vacancy announcement closes, a review of your resume will be compared against the qualification and experience requirements related to this job. After review of applicant resumes is complete, qualified candidates will be referred to the hiring manager.&nbsp;Relocation expenses are not paid. The Smithsonian Institution provides reasonable accommodation to applicants with disabilities where appropriate. Applicants requiring reasonable accommodation should contact <a href="mailto:hr@cfa.harvard.edu" target="_blank">hr@cfa.harvard.edu</a>. Determinations on requests for reasonable accommodation will be made on a case-by-case basis.&nbsp; To learn more, please review the Smithsonian’s Accommodation Procedures (<a href="https://www.si.edu/OEO/IndividualswithDisabilities" target="_blank">https://www.si.edu/OEO/IndividualswithDisabilities</a>).&nbsp;&nbsp;The Smithsonian Institution is an Equal Opportunity Employer. To review The Smithsonian's EEO program information, please click the following: <a href="https://www.si.edu/oeo&amp;nbsp" target="_blank">https://www.si.edu/oeo&amp;nbsp</a>; &nbsp; The Smithsonian Astrophysical Observatory is an equal opportunity employer. Please visit the SAO website at <a href="http://www.cfa.harvard.edu/" target="_blank">http://www.cfa.harvard.edu/</a>

Engineering Aide (Electronics), IS-0802- 3

<h3>Job Description</h3>
Job DescriptionDescriptionOPENING DATE: 08/13/2025 CLOSING DATE: 09/12/2025 SERIES/GRADE: 0802/ 03 TYPE OF POSITION: Trust Temporary (Non-Federal), Not To Exceed 1 year&nbsp; DIVISION: Central Engineering LOCATION:&nbsp; Cambridge, MA AREA OF CONSIDERATION: This position is open to all eligible candidates. What are Trust Fund Positions?Trust Fund positions are unique to the Smithsonian. They are paid for from a variety of sources, including the Smithsonian endowment, revenue from our business activities, donations, grants and contracts. Trust employees are not part of the civil service, nor does trust fund employment lead to Federal status. The salary ranges for trust positions are generally the same as for federal positions and in many cases trust and federal employees work side by side. Trust employees have their own benefit program, which may include Health, Dental &amp; Vision Insurance, Life Insurance, Transit/Commuter Benefits, Accidental Death and Dismemberment Insurance, Annual and Sick Leave, Family Friendly Leave, 403b Retirement Plan, Discounts for Smithsonian Memberships, Museum Stores and Restaurants, Credit Union, Flexible Spending Account (Health &amp; Dependent Care).&nbsp; Conditions of Employment
<ul>
<li>Pass Pre-employment Background Check and Subsequent Background Investigation, as required.</li>
<li>Complete a Probationary Period if applicable.&nbsp;</li>
<li>Maintain a Bank Account for Direct Deposit/Electronic Transfer.</li>
<li>The position is open to all candidates eligible to work in the United States.&nbsp; Proof of eligibility to work in U.S. is not required to apply.</li>
<li>Applicants must meet all qualification and eligibility requirements within 30 days of the closing date of this announcement.&nbsp;</li>
</ul>
 OVERVIEWINTRODUCTION The Smithsonian Astrophysical Observatory (SAO) is at the forefront, internationally, of the scientific exploration of the universe. SAO combines its resources with those of the Harvard College Observatory to form the Harvard-Smithsonian Center for Astrophysics (CfA). The CfA is the best-known astrophysics center in the world. Its programs range from ground-based astronomy and astrophysics research to space-based research, the engineering and development of major scientific instrumentation for space launch and use in large ground-based facilities, and research designed to improve science education. The research objectives of SAO are carried out primarily with the support of Government and Smithsonian Institution funds, with additional philanthropic support.&nbsp; Government funds are in the form of Federal appropriations or the form of contracts and grants from other agencies. In contrast, Institution funds are available to SAO through grants from the Institution's Restricted Funds, Special Purpose Funds, Bureau Activities, Business Activities, and non-Federal contracts and grants.&nbsp; SUMMARY This position will provide on-the-job engineering training and experience in the field of astrophysics. In particular, the work will involve assisting engineers in technology development for use in large-scale space telescopes, as well as other externally funded engineering projects. MAJOR DUTIES Assist engineering staff with design, assembly, integration, and test of HelioSwarm faraday cup instruments.
<ul>
<li>Using SolidWorks, design Ground Support Equipment (GSE) to be used to inspect the multiple grid assemblies.
<ul>
<li>2-Axis open cell linear stage system</li>
<li>Support grid cassette in center with repeatable clocking</li>
<li>Small video camera with ability to zoom in on grids and look for defects</li>
<li>Use Labview to assist in programming a 2 axis scan that looks at every wire cell in the grid</li>
<li>Work with Electrical Engineering</li>
</ul>
</li>
<li>Gain lab experience by supporting the assembly of the Engineering Model (EM) Faraday Cup
<ul>
<li>Assist in the design of GSE required to support and align the subassemblies using learned knowledge from prototype&nbsp;</li>
<li>Assist in assembling EM Grid Cassette assemblies; understand the use of 2D scanner for aid in assembly.</li>
<li>Assist in assembling the EM Entrance Grid Module, EM High Voltage Modulator Module, EM Limiting Aperture Module, EM Collector Module</li>
</ul>
</li>
<li>Participate in Thermal Vacuum Testing, including Calibration of the Engineering Model (EM) Faraday Cup</li>
<li>Perform other duties as assigned&nbsp;</li>
</ul>
 QUALIFICATION REQUIREMENTSBasic Requirements:Grade 3: Successful completion of l year of post secondary study that included at least 6 semester hours in any combination of courses such as engineering, engineering or industrial technology, construction, physics, drafting, surveying, physical science, or mathematics. For information on the qualification requirements for IS-0802 Engineering Aide please click on the following link: <a href="https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/engineering-technical-series-0802/" target="_blank">https://www.opm.gov/policy-data-oversight/classification-qualifications…</a> Knowledge, Skills, and Abilities required:&nbsp;
<ul>
<li>&nbsp;Basic understanding of mechanical engineering.</li>
<li>&nbsp;Knowledge of, and skill in applying, basic or commonly used rules, procedures, or operations acquired through classroom or on-the-job training in the field of Engineering.</li>
<li>Basic knowledge of Engineering, as might be obtained through secondary school or undergraduate course work.&nbsp;</li>
<li>Knowledge of software such as: MS-Excel, MS-Word, and 3D CAD tools such as SolidWorks&nbsp;</li>
</ul>
Education completed outside the United States must be deemed equivalent to higher education programs of U.S. Institutions by an organization that specializes in the interpretation of foreign educational credentials. This documentation is the responsibility of the applicant and should be included as part of your application package.&nbsp;Any false statement in your application may result in rejection of your application and may also result in termination after employment begins.&nbsp;&nbsp;Join us in "Inspiring Generations through Knowledge and Discovery."&nbsp; Resumes should include a description of your paid and non-paid work experience that is related to this job; starting and ending dates of job (month and year); and average number of hours worked per week. &nbsp; What To Expect Next: Once the vacancy announcement closes, a review of your resume will be compared against the qualification and experience requirements related to this job. After review of applicant resumes is complete, qualified candidates will be referred to the hiring manager.&nbsp;Relocation expenses are not paid. The Smithsonian Institution provides reasonable accommodation to applicants with disabilities where appropriate. Applicants requiring reasonable accommodation should contact <a href="mailto:hr@cfa.harvard.edu" target="_blank">hr@cfa.harvard.edu</a>. Determinations on requests for reasonable accommodation will be made on a case-by-case basis.&nbsp; To learn more, please review the Smithsonian’s Accommodation Procedures (<a href="https://www.si.edu/OEO/IndividualswithDisabilities" target="_blank">https://www.si.edu/OEO/IndividualswithDisabilities</a>).&nbsp;&nbsp;The Smithsonian Institution is an Equal Opportunity Employer. To review The Smithsonian's EEO program information, please click the following: <a href="https://www.si.edu/oeo&amp;nbsp" target="_blank">https://www.si.edu/oeo&amp;nbsp</a>; &nbsp; The Smithsonian Astrophysical Observatory is an equal opportunity employer. Please visit the SAO website at <a href="http://www.cfa.harvard.edu/" target="_blank">http://www.cfa.harvard.edu/</a>

Engineering Aide (Mechanical), IS-0802- 03

<h3>Job Description</h3>
Job Title: Summer Intern 2026 - Quantitative Systems Pharmacology
Location:&nbsp;Cambridge, MA / Morristown, NJ
About the job
Are you ready to shape the future of medicine? The race is on to speed up drug discovery and development to find answers for patients and their families. Your skills could be critical in helping our teams accelerate progress.
Join Sanofi’s Disease Modeling group for a 12-week summer internship focused on Quantitative Systems Pharmacology (QSP). As part of a collaborative modeling team, you will contribute to the development of mechanistic models that represent key biological processes of the disease pathophysiology and drug response. This internship offers hands-on experience in model development, data integration, and scientific communication.
We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. We’re also a company where you can flourish and grow your career, with countless opportunities to explore, make connections with people, and stretch the limits of what you thought was possible. Ready to get started?
Main Responsibilities:
<ul>
<li>
Develop and calibrate QSP models using pre-clinical and clinical data.
</li>
<li>
Identify and integrate data on biological pathways and mechanisms of action.
</li>
<li>
Present findings to quantitative scientists and cross-functional stakeholders.
</li>
<li>
Collaborate in a multidisciplinary, team-oriented environment. &nbsp;
</li>
</ul>
Program Highlights:
<ul>
<li>
Full-time, paid internship (40 hours/week).
</li>
<li>
Dedicated mentorship from experienced professionals.
</li>
<li>
Opportunities to present work internally. &nbsp;
</li>
</ul>
About You
Basic Qualifications:
<ul>
<li>
Currently enrolled and pursuing a master's degree or PhD in pharmacology, pharmacometrics, systems biology, applied mathematics, engineering, or a related field at an accredited college or university with the expectation that you will complete your current degree by the Spring of 2028
</li>
<li>
Experience with QSP, PKPD, or systems biology modeling (e.g., differential equations)
</li>
<li>
Experience with MATLAB
</li>
<li>
Must be able to relocate to the office location and work 40hrs/week, Monday-Friday, for the full duration of the co-op/internship
</li>
<li>
Must be permanently authorized to work in the U.S. and not require sponsorship of an employment visa (e.g., H-1B or green card) at the time of application or in the future. Students currently on CPT, OPT, or STEM OPT usually require future sponsorship for long term employment and do not meet the requirements for this program unless eligible for an alternative long-term status that does not require company sponsorship&nbsp;
</li>
</ul>
Preferred Qualifications:
<ul>
<li>
Experience with Julia or R is a plus
</li>
<li>
Strong communication, collaboration, and interpersonal skills
</li>
<li>
Highly reliable, detail-oriented, and deadline-driven
</li>
<li>
Enthusiastic and curious, with a passion for learning in a multidisciplinary setting &nbsp;
</li>
</ul>
Why Choose Us?
<ul>
<li>
Bring the miracles of science to life alongside a supportive, future-focused team.&nbsp;
</li>
<li>
Discover endless opportunities to grow your talent and drive your career, whether it’s through a promotion or lateral move, at home or internationally.&nbsp;
</li>
<li>
Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.&nbsp;
</li>
<li>
Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs and at least 14 weeks’ gender-neutral parental leave.
</li>
<li>
Exposure to cutting-edge technologies and research methodologies.&nbsp;Networking opportunities within Sanofi and the broader biotech community.&nbsp;
</li>
</ul>
The salary range for this position is ​$45-$60 hourly​. All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs. Additional benefits information can be found through LINK.​
Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; marital, domestic partnership or civil union status; sex, gender, gender identity or expression; affectional or sexual orientation; disability; veteran or military status or liability for military status; domestic violence victim status; atypical cellular or blood trait; genetic information (including the refusal to submit to genetic testing) or any other characteristic protected by law.&nbsp;
#GD-SA &nbsp;​ #LI-SA
#LI-Hybrid
#vhd
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