Vehicle Diagnostic 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

As a Vehicle Diagnostic Engineer, you will serve as a primary technical front line for diagnosing and resolving complex issues across Arc’s production fleet. Working at the intersection of service and engineering, you’ll lead technical triage, narrow root cause, and drive fast, high-quality decisions to route issues efficiently and keep vehicles moving. You’ll contribute across debugging, investigation, validation feedback, and broader service enablement while helping build a more scalable support model as Arc grows. You’ll report to the Director, Field Service and partner closely with cross-functional teams in a lean, high-trust environment where everyone’s work has visible impact.

We're looking for someone fired up by the mission and ready to build. You'll thrive here if you move fast, take ownership, and care about the details.

This is a full-time, on-site role at our Los Angeles headquarters. You'll report to the Director of Field Service.

What you'll do

• Investigating vehicle-level issues from initial symptom through root cause identification and resolution
• Determining whether issues originate from software logic, communication protocols, configuration mismatches, or physical hardware defects
• Performing deep-dive diagnostics including timing analysis, plausibility checks, and state transition reviews across ECUs, sensors, and actuators
• Reproducing complex issues on real vehicles and capturing ECU, network, and system-level logs to document findings
• Driving structured root cause investigations using data, instrumentation, and experimentation
• Driving fast, high-quality technical decision making in ambiguous and time-sensitive situations
• Triaging complex issues and coordinating resolution across service and engineering teams