Principal Engineer - Battery Performance Location: Oxfordshire Department: Battery Systems Reports to: Manager - Battery Performance Are you ready to play a key role in shaping the future of electrification? A major decarbonisation business is seeking a Principal Engineer - Battery Performance to join its growing Battery Systems team. Working at the forefront of electrification across energy, transport, and heavy industry, this role offers the chance to drive innovation in battery performance in a fast-paced, mission-led environment. 👥 The Team: You'll be joining a collaborative group of Battery Engineers responsible for: Cell technology research Battery data analysis Battery modelling (pack and cell) Battery cell safetyYour background may focus on one or more of these core areas - we're open to different specialisms within the battery performance domain. 💼 What you'll be doing: Lead efforts to improve electrical, thermal, and electrochemical battery performance and ensure safety compliance. Develop battery system concepts from system-level requirements - including cell selection and pack sizing. Create and implement detailed test plans and validation procedures. Analyse data from lab testing, race events, and field trials. Use simulation tools to predict system performance and assess safety strategies. Provide technical mentorship to junior engineers and lead technical discussions acro...