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 Solid Works 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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