Electronic Design Technical Authority

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 seeking a highly experienced Electronic Design TA to oversee the development and integration of electronics for our High‑Altitude Pseudo‑Satellite (HAPS) programme. This is a key technical leadership role responsible for delivering reliable, lightweight, and efficient avionics hardware for stratospheric autonomous platforms in a mission‑critical aerospace/defence environment.

Reporting to the Avionics Team Lead and operating under delegated authority from the Chief Engineer, you will act as the design authority for avionics electronics hardware. This is an individual‑contributor role with no line‑management responsibility, combining hands‑on design with technical leadership and mentoring.

• Develop and release avionics hardware systems, including but not limited to:
• Power distribution and management units
• Flight computers and control electronics
• Navigation and sensor interfaces
• Data acquisition and communication interfaces
• Carry out detailed design on electronics architecture, PCB layout, component selection, and supplier engagement for bespoke avionics solutions.
• Work closely with embedded software and firmware engineers to define interfaces, carry out unit level testing and resolve integration issues.
• Apply appropriate design assurance practices, including requirements traceability, component selection, thermal assessment, EMC considerations, design‑for‑manufacture, design‑for‑test, verification planning and maintenance of design records.
• Working with the team, design high level performance electronics for our product which will need to deal with extreme environments.
• Coach and develop team members to continuously develop the avionics design teams’ capabilities.
• Other job‑related tasks when the programme deems it necessary
• Promote a culture of safety, technical integrity, and continuous improvement.

• Collaborate with systems engineering, software, integration, and airframe teams to ensure successful end‑to‑end avionics integration.
• Lead design reviews (PDR, CDR) and hardware acceptance processes.
• Support planning, scheduling, and reporting of avionics deliverables against programme milestones.
• Undertake any other reasonable duties as required by the business and directed by line management.

• Degree in Electronics, Electrical Engineering, Aerospace Engineering, or a related discipline.
• Proven delivery of complex electronic hardware from requirements through verification and release.
• Mixed‑signal, digital and power electronics design experience.
• Schematic capture, PCB design or layout review, component selection and circuit analysis.
• Design, integration and debugging of embedded interfaces and data buses, such as CAN, RS-485 and Ethernet.
• Practical laboratory bring‑up, fault‑finding and verification experience.
• Experience producing robust design evidence for a high‑reliability product environment.
• Ability to lead technical reviews and mentor other engineers
• Aerospace, defence, space, UAV or other safety‑oriented product experience.
• DO‑254 or comparable hardware assurance experience.
• Environmental qualification experience, including thermal, EMC and vibration considerations.
• Hands‑on embedded firmware development.
• Supplier engagement, design‑for‑manufacture and production‑release experience
• Eligible for UK Security Clearance (SC or DV).

• Strong technical leadership and mentoring skills with a hands‑on approach.
• Excellent communication and documentation capabilities.
• Proactive, detail‑oriented, and capable of thriving in a fast‑paced, cross‑functional environment.
• Committed to high standards of quality, safety, and performance.

UK‑based and other locations including Domestic and International Assignments.

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