Senior Mechanical Engineer

This role is instrumental in the design, simulation, analysis, and testing of mechanical components for state-of-the-art electric vehicle powertrains. You will be hands-on across the entire product lifecycle—from initial concept to New Product Introduction (NPI). The ideal candidate possesses a robust understanding of mechanical engineering fundamentals, thrives on bringing theoretical designs to life, and is enthusiastic about pioneering innovative EV technology.

You will serve as a technical anchor, providing guidance on complex mechanical challenges and ensuring design integrity across the powertrain architecture.

• Lead all aspects of design, validation, and manufacturing for EV battery systems across aircraft, off-road, and marine applications.
• Evaluate new manufacturing technology and equipment to enable scaling and continuous improvement of in-house battery production.
• Develop test plans and design validation methods for battery system failure modes.
• Perform trade off analysis and DOEs to optimize designs for performance and cost.
• Manage part and assembly life cycles using Solid Works CAD and PDM.
• Execute structural, thermal, and fluid simulations (Sim Scale), correlating digital results with physical testing.
• Collaborate with interdisciplinary teams electrical, software, systems, and project management team to deliver high confidence products.

• 5+ years of mechanical engineering experience, with a focus on multi-cell battery systems or high-voltage applications.
• A proven history of taking projects from concept through development, test, and certification into production.
• Proficiency in rapid-prototyping to create functional jigs and fixtures.
• Design experience using manufacturing methods such as; CNC Machining, Injection Molding, Sheet Metal Bending, 3D Printing.
• Joining methods, such as ultrasonic welding, wire bonding, laser welding, TIG, MIG, IP67 sealing methods.
• Experience evaluating and managing relationships with CMs and suppliers, including performing source inspections.
• Ability to review technical work and provide actionable feedback to team members.
• Ability to clearly communicate technical issues in succinct language with non-technical team members and stakeholders.
• BS, MS, or MEng in Mechanical Engineering.

• A strong sense of ownership and the ability to thrive in a fast-paced, rapidly changing environment.
• Familiarity with aerospace or automotive safety certification standards.
• Experience managing technical data and revision control within PDM/PLM environments (e.g., Solid Works PDM, Arena, or Teamcenter).
• Hands‑on experience with high-voltage safety and battery management systems.
• Demonstrated knowledge in manufacturing processes.

We offer a comprehensive total rewards package designed to support your health, financial wellbeing, and work-life balance.

• Comprehensive Benefits: Health, Dental, Vision, and Life Insurance, with 99% of premiums covered by the company.
• Paid Parental Leave: 4 weeks of fully paid leave to support your growing family.

• Competitive Compensation: Base salary plus an equity award.
• 401(k) Plan: Employer match up to 5% to help you save for the future.

• Vacation & Sick Leave: 3 weeks of accrued vacation and 2 weeks of accrued sick leave.
• Company Holidays: Paid holidays in accordance with the company schedule.
• Flexible Leave: Unpaid personal leave options are available when you need them.

We provide programs and experiences that foster connection, growth, and a supportive workplace culture.

• Bereavement Leave: 1 week fully paid.
• Jury Duty Leave: Up to 1 week fully paid.
• PTO Nomination Program: Recognize and reward your teammates with additional time off.

• Professional Development: Annual training budget to support your career growth.
• Safety Shoe Stipend: Company‑provided support for required safety gear.

• Collaborative Environment: We operate primarily on-site to foster fast-paced collaboration and execution. Hybrid flexibility may be available after an introductory period, depending on business needs.
• Team Outing Program: Department events including a…