Finishing Operative; Rumbling

Job Title

Finishing Operative (Rumbling)

Martin-Baker Aircraft Co Ltd

Denham, England, United Kingdom

Join the mission of producing life‑saving ejection seats for advanced military aircraft. As a Finishing Operative at our Denham site, you will operate, inspect and finish components to the highest quality standards.

• Operate barrel tumbling and vibratory finishing equipment.
• Prepare metallic surfaces for further processing.
• Mask components to ensure bores, holes, slots, etc. are free from abrasive media before machining.
• Inspect parts for dimensional and surface quality.
• Packing components for internal transport and storage.
• Interpret part numbers, drawing issue numbers, ADRs, process specs and finishes.

• Basic understanding of measuring equipment.
• Experience in reading and interpreting engineering drawings.
• Knowledge of health and safety and COSHH regulations relating to hazardous substances.
• Basic manufacturing/engineering background.

• Highly competitive 9% non‑contributory pension scheme (18+)
• 4× salary Life Assurance (18+)
• Personalised training and development plan.
• 25‑days annual leave plus bank holidays.
• Opportunity to purchase additional annual leave.
• Workplace nursery benefit.
• Cycle to work scheme.

We believe in equal opportunity. All candidates will be treated equally and fairly, regardless of their background, or any characteristic protected by law. The selection will be based entirely on skills and competencies in alignment with the role’s specifications and requirements. Martin‑Baker is committed to an inclusive environment and supports the Armed Forces Covenant.

This role is subject to pre‑employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). For more information and guidance please visit

Entry level

Full‑time

Manufacturing

Aviation and Aerospace Component Manufacturing