Senior Mechanical Design Engineer

Senior Mechanical Engineer

Denham

Martin-Baker is the world’s leading manufacturer of ejection and crashworthy seats, saving over 7,805 lives to date. We combine cutting-edge engineering with a clear mission: protecting aircrew around the world.

We are now recruiting a Senior Mechanical Engineer to join our Mechanical Engineering team at our Denham site.

The Role:

As a Senior Mechanical Engineer, you will be responsible for generating robust, compliant, and commercially viable mechanical designs across the full product lifecycle — from concept through development, qualification, production, and in-service support. You will play a key role in ensuring engineering outputs meet regulatory, customer, and internal requirements while optimising manufacturability, safety, and performance.

You will also mentor junior engineers and work closely with cross-functional teams to deliver high-quality aerospace systems within demanding technical and commercial environments.

Key Responsibilities:

Check and approve engineering drawings and documents for correctness, functionality, and compliance with best practice
Support Integrated Project Teams in defining and delivering all necessary engineering work for new and existing products
Translate customer and regulatory requirements into robust engineering specifications
Participate in trade studies to identify optimal, commercially viable design solutions
Carry out performance and structural calculations using hand methods, spreadsheets, and FEA tools
Produce top-level layouts, 3D models, and detailed engineering drawings
Generate and maintain engineering documentation including BOMs, DFMEAs, load/stress reports, tolerance analyses, and CE technical files
Support trial installations, customer visits, and design reviews
Conduct clearance, interchangeability, retrofit, and modification analyses
Identify and drive continual improvement opportunities across products and processes
Proactively identify and mitigate risks to safety, performance, quality, and delivery
Mentor and support junior engineers

About You:

We are looking for an experienced, proactive, and technically strong Mechanical Engineer with a passion for safety-critical aerospace products.

Essential:

* Degree (1st or 2:1) in Mechanical or Aerospace Engineering (or equivalent experience)

* Strong experience in mechanical design within aerospace, defence, or regulated engineering environments

* Extensive experience using 3D CAD tools (e.g., NX) and producing high-quality engineering drawings

* Strong understanding of materials, manufacturing processes, and design for manufacture and assembly

* Experience conducting structural and performance calculations including FEA

* Knowledge of GD&T to UK/US standards

* Ability to produce and deliver technical reports and presentations

* Strong problem-solving skills and sound engineering judgement

* Excellent communication and stakeholder engagement skills

Desirable:

* Chartered Engineer or working towards CEng

* Experience with motion simulation tools (e.g., NX Motion, ADAMS)

* Knowledge of aerospace/defence standards (e.g., MIL-STD, Def Stan)

* Experience in CE certification

* Hands-on manufacturing or assembly experience

* Track record of innovative designs or patents

Benefits:

9% non-contributory pension (18+)
Midday finish on Fridays
4x salary Life Assurance (18+)
Personalised training & development plan
Healthcare Cash Plan
25 days holiday + bank holidays
Option to purchase additional annual leave
Cycle to Work & nursery benefits
Discounts via the Martin-Baker+ platform

Your Interview Journey:

Initial Telephone Interview: A discussion with your Recruitment Business Partner
First Stage Interview (Microsoft Teams): Structured technical interview with the Hiring Manager
Final Stage Interview: Face-to-face interview

Why Join Us?

At Martin-Baker, your work directly contributes to saving lives. You’ll be part of a collaborative, high-performance engineering environment working on safety-critical aerospace systems with real opportunities to make an impact.

This role is subject to UK Government security clearance. Applicants must have the existing right to work in the UK and be currently residing in the UK