Battery Pack Principal Design Engineer

An innovative engineering company developing advanced battery systems for automotive, defence, marine and industrial applications is looking to appoint a Battery Pack Principal Design Engineer to join its growing engineering team.

This is an exciting opportunity to take technical ownership of the mechanical design and packaging of next-generation battery modules and battery packs, working on cutting-edge electrification programmes from concept through to production.

Working within a multidisciplinary engineering environment, you will collaborate with systems, thermal, electronics and electrical engineers to develop robust, manufacturable and high-performance battery pack solutions for a diverse range of customer applications.

The Role

• Lead the mechanical design of battery modules and battery packs.
• Develop innovative packaging solutions for battery cells, HV/LV electrical components, harnesses and cooling systems.
• Produce detailed 3D CAD models and manufacturing drawings.
• Design sheet metal, machined, moulded and additive manufactured components.
• Integrate thermal management solutions including liquid cooling systems.
• Support Design for Manufacture (DfM) and Design for Assembly (DfA) activities.
• Work closely with suppliers, manufacturing partners and internal engineering teams throughout product development.
• Manage engineering BOMs, product structures and engineering change processes.
• Provide technical leadership and support the successful delivery of multiple engineering programmes.

About You

You will be an experienced mechanical design engineer with a strong background in battery pack development and electro-mechanical packaging.

You'll have:

• Degree in Mechanical, Automotive or Electrical Engineering (or equivalent).
• Significant experience designing battery modules and battery packs.
• Strong 3D CAD capability using Solid Works, CATIA or Siemens NX.
• Experience integrating battery cells, electrical components and cooling systems into complex assemblies.
• Knowledge of manufacturing processes, GD&T, tolerance analysis and Design for Manufacture principles.
• Excellent communication skills and the ability to work within multidisciplinary engineering teams.
• Experience with in automotive, motor sport, aerospace, defence, marine, rail or energy storage industries.

Why Apply?
This is an opportunity to join a fast-growing engineering organisation delivering innovative electrification solutions across multiple high-growth industries. You'll work on technically challenging programmes, influence product development from concept to production, and play a key role in shaping the future of battery technology.
If you're looking for a role where you can combine technical leadership with hands-on engineering and make a real impact on next-generation battery systems, we'd love to hear from you.