Mechanical Engineer (Marine)

TL;DR

Mechanical Engineer (Marine/Electromechanical): Designing and integrating complex electromechanical systems for electric marine vessels with an accent on powertrains, thermal management, and structural engineering. Focus on owning the full vehicle lifecycle from concept and prototyping through to sea trials and production.

Location: On-site in Torrance, CA (Los Angeles headquarters)

Company

Arc is on a mission to electrify the marine industry by rethinking powertrains, software, and vessel designs from first principles.

What you will do

• Own the design and integration of complex electromechanical systems across the full vehicle lifecycle from concept through production.
• Drive requirements definition, CAD design, FEA analysis, numerical modeling, and validation.
• Build, test, troubleshoot, and iterate on hardware in fast-moving development environments.
• Support sea trials and in-field validation to verify system performance and resolve real-world issues.
• Collaborate with suppliers, shipyards, and internal cross-functional teams to drive execution.
• Travel occasionally (~15%) to support testing, validation, and field operations.

Requirements

• 4+ years of experience owning complete mechanical or electromechanical systems from design through production.
• Strong fundamentals in structural and thermal engineering.
• Functional knowledge of electrical systems, including high-voltage battery systems and power electronics.
• Proficiency with CAD software (NX, CATIA, or SolidWorks) and analysis tools (MATLAB, Simulink, or FEA).
• Practical experience designing, building, and debugging hardware in prototype or production environments.
• Must be based in or able to work on-site in Torrance, CA.

Nice to have

• Experience with commercial vessels, marine systems, and Coast Guard/ABS regulations.
• Exposure to sheet metal manufacturing, CNC machining, composites, or shop tools.
• Experience in fluid system design, including pump and heat exchanger sizing.
• Strong GD&T fundamentals and experience creating detailed engineering drawings.