Mechanical Design Engineer

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Base is America’s next-generation power company. We’re rebuilding the foundation of modern civilization–electricity–by deploying a vast network of distributed batteries that is transforming today’s fragile, centralized grid into a resilient and abundant system. We are engineers, operators, and creatives solving some of the most complex, interdisciplinary challenges of our time.

We are looking for a Mechanical Design Engineer to lead mechanical design for Base’s high power residential inverter. You’ll own key components, review others, and solve cross-functional design challenges as they come up. This role is for someone with strong thermal fundamentals and experience designing mechanical components for power converters, including heat transfer solutions and packaging for magnetics and capacitors.

• Own the delivery of the best high power residential grid tied inverter.
• Own mechanical design of some components, check the mechanical design of others.
• Drive solutions to design problems, be the glue that fills the cracks between designers.

• 5+ years expertise owning mechanical design for grid tied or similar power converters.
• Extremely strong thermal fundamentals, including modeling (1D, transient / steady state, FEA/CFD).
• Experience designing power electronics mechanical components such as magnetics, capacitors banks, etc.
• Experience designing heat transfer strategies of various types.

Base is a company for people who want to win and who want their work to matter. We think from first principles, move with urgency, and treat the mission like our own. We talk about what isn’t working before we talk about what is because every problem is an opportunity to fix something, improve the system, and compound progress. We cut through complexity, stay close to the work, and let results speak for themselves.

• First Principles Thinking:
  Question assumptions. Principles > rules.
• Operate at Base Pace:
  Focus on what matters, act quickly, and learn by doing.
• Give & Get Feedback:
  Be direct, be humble, and maintain a growth mindset.
• Everyone’s an Owner:
  Follow through on commitments and own results.
• Strong Opinions, Loosely Held:
  Drive clarity and make calls with imperfect information.
• Committed to the Mission:
  Rebuilding the grid is a big challenge. We work hard because we care deeply about the impact we’re creating. We work in‑person. It’s not a 9‑to‑5. We are all‑in.
• Fun & Optimism Coexist with Grit:
  Collaboration and celebration coincide with the intensity of building real things.

Mid‑Senior level

Full‑time

Engineering and Information Technology

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