Job Description

A Contract Outside IR35

Hyrbrid working - Miniumum 3 on site

Proven Aerospace experience Essential and experience of requirements processes under ARP4754B

Our client, a key player in the aerospace sector, is currently seeking a System Requirements Engineer for a critical contract position. This role involves owning the capture, quality, and traceability of requirements at both system and equipment levels for the fuel cell system, acting as a standard-bearer for requirements engineering best practices across the engineering organisation. This is a pivotal position supporting the delivery of certified, zero-emission aircraft propulsion systems.

• Elicit, derive, and author requirements at aircraft-interface, system, and equipment levels, working from certification basis, customer, safety, and architectural inputs.
• Write and maintain requirements to defined quality criteria (singular, unambiguous, verifiable, traceable), applying structured authoring patterns and house standards.
• Own end-to-end requirements traceability across system and equipment boundaries, including decomposition and derivation rationale; ensure derived requirements are captured and fed to Systems Safety in line with ARP4754B.
• Lead requirements validation; correctness and completeness reviews, validation matrices, and rationale capture, producing the validation evidence required by the development assurance plan.
• Author equipment and item-level specifications, including white-box controller requirements; control function definition, design constraint derivation, and allocation across hardware and software boundaries in coordination with downstream teams.
• Capture and manage interface requirements in coordination with system architects and ICD owners.
• Flow requirements down to suppliers through equipment specifications; review supplier compliance responses and maintain clause-level traceability.
• Perform impact analysis of requirement changes through trace links; support change control under configuration management.
• Act as requirements quality gatekeeper; check and review requirements authored by others, coach engineers across departments on best practice, and monitor requirement set health (coverage, TBD/TBC burn-down, orphaned and suspect links).
• Support technical reviews and certification activities, ensuring development assurance objectives are met.

• Bachelor's degree in Aerospace, Electronic, Mechanical, or Electrical Engineering, or a related discipline; Master's degree preferred.
• Experience in systems or requirements engineering within the aerospace sector, with direct involvement in aviation certification programmes.
• Demonstrated experience in aircraft systems development under CS-23, CS-25, CS-E, or equivalent regulatory frameworks.
• Deep applied experience of requirements processes under ARP4754B is essential, covering capture, validation, and traceability objectives.
• Working knowledge of ARP4761/A, DO-178C, and DO-254, sufficient to allocate requirements across hardware and software boundaries and handle safety-derived requirements correctly.
• Demonstrated command of requirements quality frameworks and authoring patterns (INCOSE Guide to Writing Requirements, EARS, ISO/IEC/IEEE 29148 or equivalent).
• Proven experience authoring equipment and item-level specifications, including white-box controller requirements.
• Experience of supplier requirements flow-down and compliance review.
• Familiarity with DO-160G advantageous (environmental clauses within equipment specifications).
• Proficiency with Polarion or equivalent requirements management tools essential; experience with work-item configuration, link roles, and controlled exports advantageous.
• Experience working on low-maturity or new product introduction programmes preferred.
• Background in certified or in-certification propulsion, power, or flight control systems desirable.
• Experience with electric propulsion, fuel cell, or eVTOL systems considered an asset.
• Proven ability to work effectively in small, high-performance engineering teams and to mentor others on requirements and development assurance best practice.

If you are an experienced System Requirements Engineer looking for an exciting new contract opportunity in the aerospace sector, we would love to hear from you. Apply now to join our client's innovative and forward-thinking team.