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Senior Mechanical Engineer

Job in Berkeley, St. Louis County, Missouri, USA
Listing for: Epoch Biodesign
Full Time, Apprenticeship/Internship position
Listed on 2026-02-12
Job specializations:
  • Engineering
    Mechanical Engineer, Electrical Engineering, Energy Engineer
Salary/Wage Range or Industry Benchmark: 100000 - 150000 USD Yearly USD 100000.00 150000.00 YEAR
Job Description & How to Apply Below

Senior Mechanical Engineer

Position Type: Full-time

Company Name: Moment Energy

Job Location: In-person at #103 - 7 Burbidge St, Coquitlam, BC

Want to make a positive impact on the world?
The Opportunity

We are seeking a highly motivated and experienced Senior Mechanical Engineer to join our growing team. As a key member of our engineering department, you will play a critical role in the design, development, and implementation of advanced BESS solutions. Your expertise in mechanical engineering and lithium-ion battery technology will be instrumental in driving our projects to success.

The Role

  • Salary: $100,000 - $150,000 per year
  • Location: In-person, Moment Energy Coquitlam Office
  • Benefits:
    • 3 weeks paid vacation plus 1 week off between Christmas and New Year's
    • Extended health, dental, and vision benefits plan
    • RRSP matching
    • Regular company socials, events and weekly fitness and yoga
    • Free electric vehicle charging
    • Open and collaborative company culture!

Responsibilities and Duties

  • Drive mechanical design and development of BESS components and systems, including battery enclosures, thermal management systems, and structural components.
  • Collaborate with electrical engineers and software developers to integrate mechanical systems into the overall BESS architecture.
  • Play a strategic role in defining and implementing the overall mechanical design strategy for projects.
  • Lead the identification, evaluation, and onboarding of new suppliers to optimize product cost, function and lead times.
  • Drive creation and revision of FMEA, BOM, manufacturing and assembly drawings.
  • Create SOPs, design review presentations, design journals and quality documentation.
  • Provide leadership within the mechanical engineering team, guiding and mentoring junior engineers and co-op students.
  • Support overall architecture design decisions based on external client requirements.
  • Mechanical design and documentation to support UL product certification.
The Candidate

We’re looking for individuals with the following traits, skills, and experiences:

  • Bachelor's or Master's degree in Mechanical Engineering or a related field.
  • 10+ years of experience in the design and development of mechanical systems, with a focus on BESS or lithium-ion battery applications.
  • Expert proficiency in 3D CAD software and FEA analysis for mechanical design of battery modules, enclosures, and other mechanical components.
  • Demonstrated advanced understanding of lithium-ion battery technology, thermal runaway, cell characteristics, and battery pack design considerations
  • Demonstrated understanding of UL1973, UL9540, UL9540A, NPFA 68 and 69 standards.

Why join us?

  • Be part of a mission-driven company focused on creating sustainable energy solutions and making a positive impact on the world.
  • Collaborate closely with passionate co-founders and a team committed to innovation and excellence.
  • Contribute to building and scaling a company from the ground up, where your work will have a direct and meaningful impact.
  • Enjoy a dynamic, fast-paced work environment where every day brings new challenges and opportunities to grow.
  • Thrive in a workplace that values collaboration, wellness, and celebrating successes, with regular company socials, fitness sessions, and more.
About Moment Energy

Moment Energy is a cleantech startup with a team of passionate innovators revolutionizing the energy storage industry. Founded by four tech entrepreneurs, our mission is to provide worldwide access to clean, reliable, and affordable power.
How do we do it? By repurposing retired electric vehicle batteries into state-of-the-art battery energy storage systems, giving these powerful resources a second life and a lasting impact.

Our vision goes beyond sustainability; it’s about driving meaningful change. As one of the Top 100 Global Cleantech Companies of 2023, we’ve forged relationships with automakers like Mercedes-Benz Energy and Nissan North America to accelerate the global transition to a greener future. With Series A funding secured and support from the U.S. Department of Energy to build a gigafactory, we’re on the cusp of scaling our groundbreaking solutions to redefine the energy landscape and create a cleaner, brighter…

Position Requirements
10+ Years work experience
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