Marine Thermal & Fluid Systems Engineer — EV Propulsion

Arcboatcompany; Torrance (CA); On-site; USD 125,000 - 150,000; Full time

Benefits offered by this job

Healthcare benefits

Parental leave

Generous PTO

Income protection

401(k) plan

Water fund

Professional development

Safety PPE reimbursement

Captain training

Office lunches and coffee onsite

Relocation assistance

Job summary

Arc is building electric propulsion for marine vessels and is seeking a Mechanical Systems Engineer to own thermal and fluid systems, validate components with analysis and testing, and collaborate with naval architects on hull-to-machinery integration.

You will release drawings, GD&T, BOMs, and drive DFMA with manufacturing and supply chain, while supporting USCG/ABS compliance and coordinating bench, dock, and on-water tests. Travel up to 15%.

Qualifications

• Bachelor's degree in Mechanical, Marine, Ocean, Aerospace Engineering, Naval Architecture, or related engineering discipline.
• 3+ years designing and releasing mechanical systems for production (thermal/structural/fluids).
• Experience owning a design through build, test, and iteration.
• Hands-on structural and thermal analysis (FEA) and hand calculations.
• Proficiency with 3D CAD and GD&T; experience with PDM/PLM workflows.
• Ability to work hands-on in the shop and on the water; occasional sea trials.
• Ability to lift, push, and pull ~50 lbs; able to access ITAR-controlled information.

Responsibilities

• Own thermal and fluid systems across the vessel, including cooling loops, pumps, plumbing, bilge, and ventilation.
• Run structural and thermal analysis to size and validate components before build.
• Collaborate with naval architects on hull-to-machinery integration and packaging.
• Release drawings, GD&T, BOMs; drive DFMA with manufacturing and supply chain.
• Build and execute test plans on bench, dock, and water; feed data back into design changes.
• Partner with electrical/controls engineers to integrate Arc's powertrain into vessels.
• Support marine propulsion and drivetrain design, including shafting, mounts, seals, bearings, steering hardware.
• Support USCG and ABS compliance; evaluate suppliers for critical hardware.
• Up to 15% travel.

Skills

Mechanical design

Design ownership

FEA analysis

3D CAD (SolidWorks/NX/CATIA)

Hands-on field work

Manual handling

US export control compliance

Education

Bachelor's degree in Engineering

Tools

3D CAD (SolidWorks/NX/CATIA)

Job description

Arc is building electric propulsion for marine vessels and is seeking a Mechanical Systems Engineer to own thermal and fluid systems, validate components with analysis and testing, and collaborate with naval architects on hull-to-machinery integration.

You will release drawings, GD&T, BOMs, and drive DFMA with manufacturing and supply chain, while supporting USCG/ABS compliance and coordinating bench, dock, and on-water tests. Travel up to 15%.