Job Description

Mechanical Stress Engineer - Aircraft Interiors | £53.00-£64.50/hr (Umbrella) | Long-Term Contract | Hybrid

Location: Surrey (Hybrid - 3 days on site)

Rate: £53.00-£64.50 per hour (Umbrella)

Contract: Long-term contract with strong potential for extension

Mechanical Stress Engineer - Aircraft Interiors

We're supporting a leading global aerospace engineering organisation in the search for an experienced Mechanical Stress Engineer to join its aircraft modifications team on a long-term contract basis.

This role centres on delivering structural substantiation for commercial aircraft interior modification programmes, producing certification-ready stress reports and supporting projects from concept through to approval. Working within a highly regulated aerospace environment, you'll collaborate with multidisciplinary engineering teams to ensure compliance with EASA and FAA airworthiness requirements.

If you have a strong background in aircraft structures and certification, this is an opportunity to work on technically challenging programmes with long-term contract stability.

The Role

You'll be responsible for delivering structural substantiation for a wide range of aircraft cabin modification programmes, including:

Seating installations

Galleys, lavatories and monuments

Passenger Service Units (PSUs)

Cabin reconfigurations and LOPA changes

LRU installations

Interior structural interfaces

Associated structural modifications where required Working alongside structures, design and certification engineers, you'll produce high-quality engineering documentation to support certification activities across multiple programmes.

Key Responsibilities

Produce structural substantiation reports for aircraft modification programmes.

Perform classical hand stress calculations and Finite Element Analysis (FEA).

Generate certification-ready stress reports and supporting technical documentation.

Produce load cases, assumptions records and compliance documentation.

Support design reviews and certification activities.

Work collaboratively with multidisciplinary engineering teams across international programmes.

Ensure documentation is fully traceable and suitable for regulatory approval.

Deliver multiple engineering work packages to agreed programme milestones. What We're Looking For

Degree in Aerospace, Mechanical or Aeronautical Engineering.

Minimum of five years' experience in aircraft stress or structures engineering.

Proven experience producing structural substantiation for aircraft modifications.

Strong understanding of aircraft cabin interiors and structural interfaces.

Excellent classical stress analysis and hand calculation capability.

Experience using Finite Element Analysis (FEA).

Strong technical report writing skills.

Working knowledge of EASA and/or FAA certification requirements, including CS-25 and FAR 25.

Previous experience within an EASA Part 21J Design Organisation is highly desirable. What's On Offer

£53.00-£64.50 per hour (Umbrella)

Long-term contract with strong potential for extension

Hybrid working (currently 3 days on site / 2 days from home)

Opportunity to work on high-profile commercial aircraft modification programmes

Collaborative international engineering environment

Immediate start available If you're an experienced Aircraft Stress Engineer looking for your next contract and have a track record of delivering certification-ready structural substantiation within the aerospace sector, we'd love to hear from you.

Keywords: Mechanical Stress Engineer, Aircraft Stress Engineer, Structural Analysis Engineer, Aircraft Structures Engineer, Aerospace Stress Engineer, Aircraft Interiors, Cabin Interiors, Structural Substantiation, FEA, Finite Element Analysis, CS-25, FAR 25, EASA Part 21J, Aircraft Certification, Aircraft Modifications, Seating, Monuments, Galleys, Lavatories, PSU, LOPA, Aerospace Contract, Hybrid, Surrey