Power Systems Engineer Tue

Prismatic is a technology development company, specialising in the design, manufacture and delivery of innovative, high value aerospace products and systems. Prismatic is a subsidiary of BAE systems, led by a technically and commercially focused team. Our cutting-edge systems (such as the high-altitude PHASA-35) have clear commercial value, are developed at pace and address critical customer needs.

We are currently looking for a Power Systems Engineer to join Prismatic Ltd. based in Alton. This will be an exciting opportunity to join a well-established, but growing, team working on exciting new Unmanned Air Vehicles.

You will be supporting the development of advanced electrical power systems for cutting-edge unmanned aerial platforms. The successful candidate will play a key role in defining and implementing power architectures for UAV applications — including electric and hybrid-electric propulsion technologies.

This is an exciting opportunity to contribute to the future of autonomous aviation, energy‑efficient flight, and next‑generation mission capabilities.

• Responsible for design and development of DC Power Generation, storage, and management systems.
• Generation of integrated requirements and test strategies including functional, integrity and performance requirements across systems including software.
• Test and evaluation of power systems at unit level to full system integration.
• Test report generation and analysis of test data.
• Deployment on Flight Trials to lead and support battery/power generation integration and testing as required.
• Problem solving/fault finding of DC electrical systems at a system/unit level.
• Generation of assembly documentation/processes to assist manufacturing with the build.

• Degree in Electrical, Aerospace, or Mechatronic Engineering (or equivalent experience).
• At least 5 years proven industry experience with DC power systems.
• Experience in the design and analysis of aircraft or UAV electrical power systems.
• Understanding of DC Power System architecture, ideally within the HALE domain or Automotive.
• Understanding of energy storage systems such as Li-ion, solid‑state batteries, or hydrogen fuel cells.
• Understand methodology of battery charge/discharge characteristics.
• Familiarity with aerospace standards and practices (e.g., Def Stan 00-970, STANAGs, DO-160, ARP
  4754A).
• Knowledge of UAV‑specific challenges including SWaP (Size, Weight, and Power) constraints, autonomous operation, and distributed architectures.
• Understanding of safety and certification principles of DC power systems.
• Generation of assembly documentation/process.
• Ability to work with third party companies to manufacture or certify products.
• Ability to manage own workload both independently and as part of a team.
• Ability to independently manage packages of work managing technicians and suppliers to meet programme timescales.
• Strong problem‑solving, communication (written and verbal), and systems‑thinking skills.
• Excellent attention to detail.
• Experience of novel R&D programs, ideally with challenging “cutting edge” technology.
• Experience of large UAV development.
• Experience of building vehicles, robots, or other complex systems.
• Proficient in modelling and simulation tools e.g. MATLAB, Python, or similar high‑level languages.
• Chartered Engineer (CEng) or working towards professional registration (desirable).
• Familiarity with UAV certification frameworks (e.g., CAP
  722, EASA SC‑Light UAS, MAA regulations).
• Hands‑on experience in lab testing and hardware‑in‑the-loop (HIL) systems.
• Experience in defence or dual‑use UAV applications.
• Experience with electric or hybrid‑electric propulsion systems for UAVs or eVTOL platforms.

We’re proud to offer a competitive package and a range of benefits designed to support your career and wellbeing, including:

• Location: Alton (Hampshire), UK.
• Contract: Permanent, 37.5 hours per week (excluding breaks). Hybrid working (where applicable), giving you the flexibility to balance time between home and our offices (norm is 3 days a week).
• Bonus: Non contractual company performance related bonus.
• Pension: 10% company contribution, plus salary…