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. #lithionics

Created: 2026-04-02