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Mechanical Engineer (Commercial Systems)

Torrance, CA

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 Arc’s Mechanical Engineer you will own the design and integration of electromechanical systems across the vehicle lifecycle, from concept and requirements through prototyping, validation, sea trials, and production.

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.

What you'll do

  • Owning the design and integration of electromechanical systems on the vehicle
  • A dynamic split between requirements gathering, specifications, CAD design, hands on prototyping, analysis (FEA, numerical modeling, hand calculations), in-field validation, and production support
  • Getting hands on with building and testing
  • Supporting sea trials to validate and certify systems
  • Interfacing with component suppliers, partner shipyards, and vessel operators
  • Traveling occasionally ~15% of the time

Minimum Qualifications

  • 4+ years of experience that includes owning complete mechanical systems from initial design through production and is ready to take full ownership of key systems.
  • Excellent grasp of the fundamentals of Structural and Thermal Engineering
  • Functional knowledge of electrical systems, including high voltage battery systems and power electronics
  • Experience with CAD software packages such as NX
  • Experience with modeling software such as Matlab and Simulink
  • We expect strong intuition for manufacturing methods, e.g. if you’re handed a part, you know how it was likely made
  • Practical experience designing, building, and troubleshooting hardware in production environments
  • Clear written and verbal communication
  • Strong time management skills
  • Comfortable pushing at a fast but sustainable pace
  • Comfortable spending time on boats in the field to collect test data
  • We value engineers who take full ownership, apply first-principles thinking, and prioritize technical problems effectively for the most business value

Bonus Qualifications

  • Firsthand experience working on commercial vessels, including knowledge of Coast Guard and ABS regulations
  • Experience with high voltage battery systems
  • Exposure to sheet metal manufacturing, CNC machining, and shop tools
  • Experience with fluid system designs including pump sizing, heat exchanger sizing, and hose/pipe routing
  • Experience creating and detailing engineering drawings, with a solid understanding of GD&T
  • Comfortable pushing at a fast but sustainable pace
  • Enthusiasm for boating and the water

At Arc, we encourage diversity and consider all qualified applicants equally for employment, regardless of background, identity, or status. You're always welcome to reach out even if you don't meet many of these qualifications. Passion and aptitude make up for a lot.

Our values

We move with urgency and build with care. We value these five things above all else:

  • Ownership over both your work and the company's success
  • Empathy for colleagues and for customers
  • Humility in problem solving and collaboration
  • Pragmatism for navigating ambiguity quickly and sensibly
  • Inclusion of different backgrounds, opinions, cultures, and perspectives.

We want people who share and embody these values. It is vital that our values align — we'd be happy to elaborate on any or all of these during the interview process.

What we offer

The base salary for this role is P3: $150,000 P4: $180,000 annually.

Highly competitive equity grants are included with full-time offers, as well as semi-annual bonuses tied to your impact, not just your tenure.

Additionally, Arc offers top-tier benefits for full-time employees, including:

  • Healthcare benefits — 99% employer-paid medical, dental, and vision
  • Parental leave — 14 weeks fully paid for birthing and non-birthing parents
  • Generous time off — Highly competitive PTO with an opportunity to earn more time with tenure
  • Income protection — Life and disability insurance for all employees
  • Retirement savings — Traditional and Roth 401(k) access
  • Water fund — $500 for you to spend each year to get out on the water, however you choose
  • Professional development — $500 annual reimbursement for professional development and a monthly AI stipend
  • Safety support — Annual reimbursement for PPE, ergonomic equipment, and anything that ensures we keep our crew safe
  • Captain training — Training and access to take Arcboats out with friends and family
  • Office perks — Daily lunches, snacks, and good coffee while onsite
  • Relocation assistance — Available depending on role eligibility.

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