Applications Engineer

The marine industry

The marine industry supports recreation, global commerce, and national defense. It runs on technology that hasn't meaningfully changed in fifty years. Arc is on a mission to electrify the marine industry by rethinking powertrains, software, and vessel designs from first principles.

Who we're looking for

We're seeking an Applications Engineer who is passionate about the mission and ready to build. You'll thrive here if you move fast, take ownership, and care about the details. Your ultimate goal is to deeply understand our product and market, build powerful internal estimation and sizing tools, and effectively automate yourself out of the day-to-day work.

What You'll Do

• Partner with our business development group as the first technical touchpoint, developing concept solutions and architectures for new marine projects.

• Drive the development of internal sizing and estimation tools.

• Collaborate with design engineers to build robust calculators for electrical loads, thermal limits, and pricing.

• Sizing and specifying complex marine electrical equipment, including 1000V DC busses, multi-MWh energy storage systems, switchgear, and electric propulsion motors.

• Generating high-level CAD layouts to validate space claims for major equipment.

• Estimating costs and material take-offs (BOMs), taking full ownership of the final pricing roll-up and project margins.

• Collaborating closely and empathetically with core engineering, supply chain, and technical writing teams to translate architectures into clear, compliant, and persuasive bid packages.

• Evaluating customer requirements, ship specifications, and general arrangements to develop optimized technical proposals that align with our mission.

• Presenting technical architectures to clients, shipyards, and naval architects, answering technical questions during the bidding phase with transparency and expertise.

Minimum Qualifications

• 2+ years of experience in the marine industry as an application engineer, proposal engineer, design engineer, or similar role.

• Strong understanding of marine electrical architectures, including diesel-electric systems, fully electric propulsion, and high-voltage DC power distribution.

• Functional knowledge of energy storage systems (ESS), switchgear, power electronics, and power management systems.

• Ability to read, interpret, and create electrical single-line diagrams, system block diagrams, and complex spreadsheets.

• Basic proficiency with CAD software (such as NX or SolidWorks) for conceptual layouts and footprint planning.

• Clear verbal communication and the ability to collaborate effectively in an inclusive, cross-functional environment.

• Strong time management skills with the ability to juggle multiple project deadlines simultaneously.

• Comfortable pushing at a fast but sustainable pace, respecting both the work and your own well-being.

• Comfortable spending occasional time on boats in the field or at shipyards for vessel walks and client meetings.

Bonus Qualifications

• Firsthand experience working on commercial vessels (tugs, ferries) or defense vessels, particularly those with electric propulsion.

• Deep experience with high-voltage battery systems and their associated safety requirements.

• Familiarity with marine classification society rules and regulatory standards (e.g., ABS, DNV, USCG, IEEE 45).

• Experience conceptualizing or guiding the creation of computational tools (e.g., in Excel, Matlab, or Python) for system sizing.

• Familiarity with fluid/thermal cooling systems, sufficient to understand and utilize internal thermal sizing calculators for power electronics.

• Enthusiasm for boating and the water.

What we offer

• Base salary of $140,000* annually.

• Highly competitive equity grants included with full-time offers.

• Semi-annual bonuses tied to your impact, not just your tenure.

• 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

  • Roth 401(k) access

  • Retirement savings

  • 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

Our values

• 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

We value 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.