Senior Electronic Hardware Systems Engineer

A Contract position - Outside IR35 Hybrid working - 3 days on site Our client, a pioneer in clean aviation technology, is currently seeking a Senior Electronic Hardware Systems Engineer to join their team on a contract basis and contribute to the development and qualification of airborne electronic hardware for Hydrogen Fuel Cell Management Systems. Must have aerospace experience - airborne hardware, DO254. Somebody comfortable with the full design lifecycle from requirements writing through to delivery, familiar with DOA processes. Key Responsibilities: Architect and integrate reliable monitoring and mixed‑signal electronics, including the elicitation of requirements and the generation of new derived requirements to support system‑level functionality and safety objectives. Collaborate with external suppliers on the detailed design and manufacturing of electronic hardware, ensuring appropriate component selection, generation of the required configuration‑control documentation and traceability, and adherence to design standards. Collaborate with Fuel Cell Systems, Mechanical, Software teams and other stakeholders to support the integration of hardware electronic circuit card designs. Own the design throughout the development cycle. Produce the required documentation for reviews, address findings, and perform follow-up activities with internal and external stakeholders. Support compliance with DO-254 Plan objectives and activities for simple and complex electronic hardware, including documentation, traceability, verification, and validation processes. Produce and review design documentation to ensure traceability, compliance, and configuration control, in alignment with design processes and procedures. Maintain, review, and drive continuous improvement of engineering and design standards to ensure alignment with evolving aerospace best practices. Job Requirements: Strong understanding of mixed signal circuit design and monitoring circuits. Strong understanding of electrical safety (creepage and clearance, insulation requirements, etc.). Skills in designing and implementing data acquisition systems. Experience with modelling electronic circuits using SPICE-based simulation tools. Proven experience in integrating electronics hardware with microcontrollers and digital signal processing. Understanding of qualification and environmental requirements (EMC testing, etc.). Bachelor's degree in Electronics Engineering, Electrical Engineering, or an equivalent professional experience in hardware electronics design. Experience in airborne hardware electronics development. Desired Attributes: Master's degree in Electronics/Electrical Engineering. Experience in fuel cell or battery management systems. Knowledge of physical implementation RS485, Ethernet and CAN communication interfaces. Experience working in a Design Organisation Approval (DOA). Familiarity with certification processes for aerospace systems and equipment under CS-25/CS-23, DO-254, and AMC 20-152A. Experience with IEC 60664, DO-160 or MIL-STD-810. Experience in modelling electronics using LTSpice, and/or Simetrix.If you are a self-motivated systems-minded engineer passionate about the future of clean aviation technology and meet the above criteria, we invite you to apply now and contribute to a pioneering team in the aerospace industry