Battery Pack Engineering Lead

The Role Hadrian is looking to expand our battery pack assembly team, specifically a Battery Pack Engineering Lead. This is a hands-on technical leadership role. You'll take the line from a concept to a working, repeatable, and safe production line, leading things such as pack and module architecture, the assembly process, cell joining, thermal management, test, and safety. This role will anchor a small team of specialists and engineers, as well as interfacing cross-functionally with the rest of the company. You'll set technical direction, make the hard calls, and lead a few engineers alongside you.

What You'll Do

• Own the pilot battery pack assembly line end-to-end, from pack and module architecture through assembly process design, build, test, and production readiness
• Define the assembly process: cell intake and sorting/matching, module and pack build sequence, cell joining (laser / ultrasonic / resistance welding), busbar and interconnect assembly, thermal management, enclosure, and potting/sealing
• Develop the fixturing, stations, tooling, and work instructions for the pilot line, designed for eventual automation and rate production on Hadrian's robotics and software platform.
• Own battery safety including thermal runaway mitigation, abuse tolerance, and compliance with applicable standards and testing (e.g., UN 38.3 transport)
• Establish electrical test, formation, and characterization processes; define pack-level acceptance criteria and validation
• Build cell-level traceability and lot control, partnering with Quality and Qualification on inspection plans and qualification of the packs
• Lead and grow a small, deep-expertise team, setting technical direction and owning final calls
• Partner across design (mechanical/electrical/thermal), manufacturing engineering, automation/controls, supply chain (cell sourcing), quality/qualification, and program teams
• Drive the line from concept to production readiness against yield, throughput, cost, and rate targets

What We're Looking For

• Bachelor's degree or higher in Electrical, Mechanical, Chemical, or Materials Engineering, or a related technical field