Mechanical Engineer

What we're building

The marine industry supports recreation, global commerce, and national defense. And yet it runs on technology that hasn't meaningfully changed in fifty years. Until now.

Arc is on a mission to electrify the marine industry. We're rethinking powertrains, software, and vessel designs from first principles. And we're already executing. We started with consumers to develop and harden our core technology. We're now scaling production of our flagship model with new models and sectors on the horizon. Now we're extending our platform to commercial applications, starting with tugs, ferries, and defense, with years worth of signed contracts and a pipeline that spans every vessel type on the water.

The technology is proven, the momentum is building, and the opportunity is enormous. The marine industry is going electric and Arc is building the platform that powers it.

Who we're looking for

Who We're Looking For
As Arc’s Senior Mechanical Engineer, you will own the design and integration of complex electromechanical systems across the full vehicle lifecycle- from early concept and requirements through prototyping, validation, sea trials, and production.

This is a full-time, on-site role at our Los Angeles headquarters reporting to our Manager, Powertrain Hardware Engineering

What you'll do

• Owning the design and integration of complex electromechanical systems across the vehicle lifecycle, from concept through production
• Working across mechanical, electrical, thermal, and manufacturing domains
• Understanding how assemblies, subsystems, and components interact as part of a larger integrated vehicle
• Driving requirements definition, specifications, CAD design, hands-on prototyping, analysis (FEA, numerical modeling, hand calculations), validation, and production support
• Designing with manufacturability, serviceability, reliability, and real-world operating conditions in mind
• Building, testing, troubleshooting, and iterating on hardware in fast-moving development environments
• Working closely with component suppliers, partner shipyards, manufacturing teams, and vessel operators to drive execution
• Supporting sea trials and in-field validation to verify system performance and resolve real-world issues
• Traveling occasionally (~15%) to support testing, validation, suppliers, and field operations

Minimum Qualifications

• Bachelor’s degree in Mechanical Engineering or related Engineering field
• 5+ years of experience owning complete mechanical or electromechanical systems, including large assemblies or complex multidisciplinary systems, from initial design through production
• Functional knowledge of electrical systems, including high-voltage battery systems and power electronics