Mechanical Engineer III – Battery Systems Engineering

Responsibilities

• Own mechanical design of battery modules and packs end-to-end, including cell integration, structural components, and enclosure design
• Drive design reviews, tolerance stack-up analysis, and DFM decisions
• Own thermal simulation setup, execution, and post-processing using tools like SimScale or ANSYS
• Design and run thermal test campaigns and correlate simulation outputs to physical results
• Define and lead mechanical validation test plans including vibration, drop, and thermal cycling
• Mentor junior engineers on CAD practices, GD&T, and design fundamentals
• Maintain CAD revision history and BOM structure for subsystems

Requirements

• Bachelor's degree in Mechanical Engineering or a closely related discipline
• 5+ years of professional mechanical engineering experience, ideally in battery, EV, or energy storage hardware
• Demonstrated track record taking designs from concept through production
• Expert-level 3D CAD skills (Onshape, SolidWorks, or equivalent)
• Strong command of GD&T, tolerance stack-up analysis, and DFM principles
• Ability to own mechanical subsystems independently with minimal oversight

Preferred Qualifications

• Proficiency with FEA or CFD tools (SimScale, ANSYS, SolidWorks Simulation)
• Direct experience with battery-powered devices, EV systems, or energy storage products
• Hands-on experience with manufacturing processes such as machining, sheet metal, and plastics
• Working knowledge of UN 38.3 or UL safety standards
• Experience leading physical prototype builds from CAD to assembled hardware

Benefits

• Salary range: $130,000 – $165,000 annually
• Equity participation
• Comprehensive healthcare benefits (medical, dental, vision)
• Paid time off and company holidays