Mechanical Engineer II

Build the Future of Energy at Lithionics

At Lithionics, we're redefining what's possible in lithium-based energy storage. Our cutting-edge battery systems power mission-critical applications across marine, RV, specialty vehicle, and industrial markets. If you're passionate about turning bold ideas into manufacturable, high-performance products, we want you on our team.

We're seeking a Mechanical Engineer II who thrives at the intersection of innovation, precision, and production. In this role, you'll help bring advanced battery systems from concept to reality-designing, validating, and optimizing solutions that are safe, scalable, and built to last. We are looking for someone with experience in designing multiple-component products that go to an end user.

What You'll Do

As a Mechanical Engineer II, you'll play a hands-on, high-impact role throughout the product lifecycle:

Design & Engineering

• Lead the mechanical design of battery modules and enclosures with a focus on thermal management, structural integrity, and safety
• Translate early concepts into robust, production-ready designs

Electromechanical Integration

• Partner closely with Electrical Engineering to design busbars, wire harnesses, and PCB mounting solutions
• Ensure proper creepage and clearance for high-voltage applications

Documentation & Standards

• Create detailed blueprint drawings and technical specifications
• Perform QA/QC reviews of peer designs to ensure accuracy and manufacturability
• Apply GD&T (ASME Y14.5) to ensure proper fit and function

Analysis, Validation & Testing

• Lead DFMEA sessions to proactively identify and mitigate risk
• Develop and execute DVP&R plans
• Oversee physical testing for vibration, thermal performance, ingress protection, and crash requirements

Manufacturing & Production Support

• Develop comprehensive assembly documentation
• Provide hands-on support on the manufacturing floor
• Troubleshoot production challenges using 8D root-cause analysis

Leadership & Ownership

• Serve as a technical mentor to junior engineers and designers
• Help train team members on CAD best practices and SOPs
• Act as Project Engineer for assigned product lines, coordinating with vendors and cross-functional teams (Electrical, Thermal, Software)

What You Bring

Required Qualifications

• Bachelor's degree in Mechanical Engineering or a related technical field
• 3+ years of professional mechanical design experience (must have actual design, not process, experience)
  (Battery systems, automotive, power conversion, or aerospace experience strongly preferred)
• Expert-level proficiency in SolidWorks or Autodesk Inventor
  (CSWA/CSWP or equivalent certification a plus)
• Strong understanding of:
  • Material selection (plastics, sheet metal, busbars)
  • Thermal interface materials
  • DFM/DFA best practices

Preferred Experience

• Experience with lithium-based battery systems
• Background in Formula SAE, Solar Car, or similar hands-on engineering competitions
• A mindset that views challenges as opportunities to innovate and improve

Why Lithionics?

• Innovative products that make a real-world impact
• End-to-end engineering exposure-from concept through production
• A collaborative, technically driven culture
• Opportunity to grow into technical leadership roles
• Competitive compensation and benefits

Ready to Power What's Next?

If you're excited to design products that push the boundaries of energy storage and want to work with a passionate, high-performing engineering team, we'd love to hear from you.

Apply today and help engineer the future with Lithionics.

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