Mechanical Engineer - New GraduateGreen Hydrogen | Electrolyzer Stack & System Design | Entry LevelBurlington, MA (Greater Boston) • On-Site • Full-Time • Start January or June 2027
THE OPPORTUNITYWe are hiring an entry-level Mechanical Engineer from the Class of 2027 to join our electrolyzer engineering team. This role is built specifically for new college graduates - you will complete your degree in December 2026 or May 2027 and start with us in January 2027 or summer 2027.
This is a hands-on design role. You will take parts and assemblies from CAD model to prototype to production - designing components for our water electrolyzer stacks and systems, building and testing them, and helping scale them from the lab bench to full-scale manufacturing. You'll work side by side with experienced mechanical, systems, process, and electrochemistry engineers, and you'll see your designs built, tested, and shipped.
WHAT YOU'LL DO- Design components and assemblies for water electrolyzer stack platforms and balance-of-plant systems using 3D CAD.
- Build, test, and iterate on prototypes - then refine designs based on test data to improve performance, reliability, and cost.
- Help scale electrolyzer stacks from lab scale to full-scale production by designing fixtures and tooling, supporting process development, and handing designs off to manufacturing.
- Create engineering drawings with GD&T, bills of materials (BOMs), and design documentation.
- Work with the systems team to design, fabricate, and commission test stations, and run operational testing.
- Investigate electrolyzer failures related to mechanical component degradation and support root cause analysis.
- Run and improve factory acceptance testing (FAT) methods for stacks and systems.
- Partner with supply chain and vendors on prototype parts, design for manufacturability (DFM), and stack and system cost reduction.
- Travel occasionally (up to 15%), including internationally, to work with Envision's global engineering and manufacturing teams.
WHAT YOU'LL GAIN- Design ownership early: your parts and fixtures get built, tested, and used - not just modeled.
- Full product life cycle: concept, prototype, test, scale-up, and production, all in one role.
- Clean energy scale-up experience: a front-row seat taking green hydrogen technology from development to industrial production.
- Global perspective: collaborate with Envision teams and sites around the world.
WHAT WE'RE LOOKING FORRequired- Bachelor's or Master's degree in Mechanical Engineering, Electromechanical Engineering, Aerospace Engineering, Manufacturing Engineering, or a related field - completed between December 2026 and May 2027.
- Proficiency in 3D CAD - Creo preferred; experience in SolidWorks, NX, Inventor, Fusion 360, or similar transfers well.
- Understanding of fabrication methods (machining, sheet metal, molding, additive) and their trade-offs from prototype to high-volume production.
- Hands-on build experience with shop equipment (mill, lathe, 3D printer, laser cutter, etc.) - a university machine shop, makerspace, or student project team counts.
- Hands-on engineering experience through internships, co-ops, research labs, senior design / capstone projects, or engineering student teams (e.g., Formula SAE, Baja, rocketry, robotics).
- Clear communication with people across technical backgrounds - engineers, technicians, and suppliers.
- Curious, organized, and comfortable in a fast-paced, hands-on lab and production environment.
- Genuine interest in clean energy, hydrogen, or climate technology.
Nice to Have (not required - if you meet most of the above, we encourage you to apply)
- Coursework, research, internship, or project experience with electrolyzers, fuel cells, flow batteries, or other batteries.
- Exposure to FEA or CFD (ANSYS preferred; COMSOL, SolidWorks Simulation, or similar).
- Familiarity with GD&T, tolerance stack-up analysis, and engineering drawing standards.
- Experience with design of experiments (DOE), test rigs, data acquisition, or data analysis (Python, MATLAB, or Excel).
- Experience with sealing and gasket design, pressure vessels, fluid systems, or bolted joints.
COMPENSATION & BENEFITS- Base salary:$80,000 - $100,000 annually. Placement within the range depends on degree level (Bachelor's vs. Master's), skills, and relevant experience.
- Bonus: eligible for an annual discretionary performance bonus of up to 15% of base salary.
- Health: medical, dental, and vision insurance with 100% employer-paid premiums - no paycheck deductions for your coverage.
- Retirement: 401(k) with company match.
- Time off: generous PTO, 8 federal holidays + 4 floating holidays, and paid sick leave.
- Family: paid parental leave; Flexible Spending Accounts for medical and dependent care.
- Protection: basic and optional life insurance; short- and long-term disability insurance.
- Relocation: relocation assistance will be considered for the right candidate.
POSITION DETAILSLocationBurlington, MA (Greater Boston) - on-site
Start dateJanuary 2027 (December 2026 grads) or June 2027 (May 2027 grads)
StatusFull-time, exempt
TravelUp to 15%, including international
Visa sponsorshipWill consider. International students, including F-1 OPT / STEM OPT candidates, are encouraged to apply.
HOW TO APPLYApply with your resume, including your degree, major, and expected graduation date. A cover letter is optional. Links to a portfolio or project photos (CAD, prototypes, student team builds) are encouraged.
