Mechanical Hardware Designer Rimac Energy Oxfordshire United Kingdom

Rimac Energy is a technology company at the forefront of advanced battery energy storage, power conversion, and control systems for demanding, fast-moving energy applications. We design and build hardware that solves hard problems — from grid-connected inverters and energy storage systems through to high-voltage power distribution and accessory control products used in real-world deployments.

Our teams span mechanical design, electrical engineering, software, controls, compliance, testing, supply chain, and manufacturing. We are fast-moving, technically ambitious, and results-driven. If you join us, you will work on genuinely complex problems alongside engineers who care deeply about what they build.

We expect a lot. We also offer a lot: real ownership, real products, and the chance to contribute to technology that pushes the boundaries of what energy systems can do.

• Own component design for all assigned parts and commodities, including electrical routing, thermal routing, structural enclosures, assembly features, and packaging constraints
• Ensure mechanical requirements are met, reviewed, documented, and signed off before design release
• Create, maintain, and release accurate 3D models, 2D drawings, design data, and production documentation
• Support mechanical component selection by assessing package, material, process, cost, supplier capability, validation, and serviceability constraints
• Define materials, finishes, coatings, plating, fasteners, torque requirements, and interface details for conductive and structural components — including electrical contacts, busbars, brackets, enclosures, and grounding hardware
• Support virtual builds and build-process documentation to confirm assembly sequence, access, tooling clearance, routing, serviceability, and repeatability

• Translate electrical diagrams, schematics, wiring information, control and communication interfaces, EPB and safety needs, and hardware requirements into practical mechanical packaging solutions
• Package PCBs, contractors, fuses, filters, sensors, connectors, cable glands, busbars, cooling systems, brackets, and associated enclosures
• Support EMC-aware packaging — including cable routing, filter placement, grounding, bonding, shielding, segregation, conductive interfaces, and enclosure-level design features
• Contribute to design decisions that balance efficiency, grid compliance, EMC performance, safety, cost, thermal performance, manufacturability, and launch timing

• Act as an integral interface with the CAE team, interpreting simulation results and converting them into design actions that meet mechanical, thermal, structural, vibration, and durability requirements
• Support testing, prototype build, verification, integration, and launch activities with build notes, design data, fixtures, packaging updates, and rapid issue resolution.
• Capture build feedback, test observations, fit issues, tolerance concerns, supplier questions, and design risks
• Use structured problem-solving to identify issues, containment actions, root causes, countermeasures, and robust design improvements

• Support supplier and customer interaction covering DFM, tooling, verification, integration, issue resolution, cost, delivery timing, and design maturity
• Conduct cross-functional reviews for high-priority tasks and where risk, timing, or integration impact warrants wider review
• Solve complex problems by drawing on expertise across the team, supply chain, and wider industry where needed

• Support cost analysis, design-to-cost trade-offs, supplier feasibility reviews, and…