Mechanical Design Engineer — Aerospace & Defence Tooling

ARM International; Ampthill; On-site; GBP 40,000 - 55,000; Full time

Job summary

ARM International is seeking a Mechanical Design Engineer to join a market-leading defence and aerospace environment. The role focuses on developing tooling, fixtures, and manufacturing processes, with strong emphasis on DFMA, PFMEA, and GD&T using CREO for technical drawings.

You will collaborate across engineering and production teams to support unit manufacturing and process improvement. The ideal candidate has hands-on design experience, knowledge of lean manufacturing, and the ability to

Qualifications

• Extensive knowledge of Lean Manufacturing and Six Sigma in production environments.
• Experience with GD&T and geometric-tolerance analysis.
• Proficient in CAD, preferably CREO, for generating technical drawings.
• Ability to create Technical Requirement Specifications and manufacturing data packs.
• Understanding of DFMA, PFMEA and process optimization.

Responsibilities

• Develop tooling and fixtures for assembly, machining and test.
• Design new tooling and fixturing requirements.
• Prepare Manufacturing BOMs and routings to aid ease of manufacture.
• Collaborate with Industrial Engineering, Production Engineering and other functions.
• Support full-rate production and continuous improvement initiatives.

Skills

Lean Manufacturing

Six Sigma

GD&T

CAD experience

Manufacturing processes

Cross-functional collaboration

Tools

CREO

Job description

ARM International is seeking a Mechanical Design Engineer to join a market-leading defence and aerospace environment. The role focuses on developing tooling, fixtures, and manufacturing processes, with strong emphasis on DFMA, PFMEA, and GD&T using CREO for technical drawings.

You will collaborate across engineering and production teams to support unit manufacturing and process improvement. The ideal candidate has hands-on design experience, knowledge of lean manufacturing, and the ability to