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Part 21J Design Engineer (Structures & Mechanical)

An exciting opportunity has arisen for a Part 21J Design Engineer to join a highly specialised aerospace engineering environment, supporting aircraft-level design within a Part 21 Design Organisation.

This is a design-led position, ideal for an engineer who enjoys owning structural solutions from concept through to certification, with the opportunity to progress towards Compliance Verification Engineer (CVE) status.

The RoleAs a Part 21J Design Engineer, you will take ownership of aircraft structural design activities, working across both new and in-service programmes. You will play a key role in delivering robust, certifiable solutions, whilst also carrying out independent technical checking to ensure the highest standards of engineering integrity.

Key ResponsibilitiesStructural Design

Own and deliver aircraft structural design solutions from concept through to detailed design and release

Produce high-quality engineering drawings, models, and supporting reports

Contribute to structural substantiation activities, including strength, fatigue, stiffness, and damage tolerance

Support design, modification, and repair work across metallic and composite structures

Collaborate with cross-functional teams including stress, systems, manufacturing, and airworthiness

Technical Checking

Carry out independent technical checking of design data, including drawings, models, and reports

Ensure outputs are compliant, consistent, and aligned with approved design methodologies

Provide constructive challenge in line with design assurance principles

Compliance & Development

Support certification and compliance activities through robust engineering design

Work towards CVE (Structures) authorisation, supported by the organisation

Contribute to maintaining high standards of design assurance and airworthiness compliance

About You
Degree qualified in Aerospace, Mechanical Engineering, or a related discipline (or equivalent experience)

Proven experience in aircraft-level structural design, not just component-level work

Strong background in producing and owning design data for certification purposes

Experience with structural substantiation and airworthiness requirements

Confident working within a regulated Part 21J environment (or similar)

Able to apply sound engineering judgement based on practical design experience

Desirable Experience
Previous CVE (Structures) authorisation

Experience working with the UK CAA and/or EASA

Knowledge of composite structures, fatigue, and damage tolerance

Experience across multiple aircraft platforms or modification programmes

Ability to mentor or support junior engineers

Working ArrangementsThis role is ideally office-based in South Wales, supporting collaboration and design integration. However, hybrid or flexible working options may be considered for the right individual.

Why Apply?
Flexible and Hybrid working

Work on complex, aircraft-level design projects

Clear pathway towards CVE authorisation

Join a highly technical and collaborative engineering environment

Opportunity to influence real-world aerospace design solutions

If you’re a Part 21J Design Engineer looking to take ownership of high-integrity aerospace design work and progress your career within a regulated environment, we’d love to hear from you