Location:
Holyhead, GB, LL65 3NY
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Onsite or Hybrid: OnSite
Job Title: Senior Mechanical Supervisor
Location: Isle of Anglesey, Wales
Compensation: £37,271.74 + Benefits
Role Type: Full time / Permanent
Role ID: SF73192
Lead mechanical maintenance activity in a fast‑jet aviation environment
At Babcock, we’re working to create a safe and secure world, together. If you join us, you can play your part as a Senior Mechanical Supervisor at RAF Valley, providing hands‑on leadership and technical authority within a highly regulated aviation maintenance environment.
The role
As a Senior Mechanical Supervisor, you will lead and supervise mechanical activity on aircraft and aircraft components, ensuring all maintenance is completed safely, compliantly and to approved technical standards. You’ll take responsibility for task delegation, supervision, fault diagnosis and delivery performance, while providing leadership and development support to your team.
This is a key position of authority within the unit, with responsibility for signing off work and supervising maintenance activities within defined trade boundaries.
Day-to-day, you will be:
Leading and supervising mechanical maintenance activities on aircraft and aircraft components.
Delegating tasks, authorising work and ensuring airworthiness standards are maintained.
Carrying out and overseeing fault diagnosis, repairs, inspections and component changes.
Monitoring progress against delivery targets and escalating issues where required.
Providing technical guidance, leadership and people management to the mechanical team.
Ensuring all work is completed in accordance with approved technical information, safety requirements and regulatory procedures.
This is a full‑time, permanent, onsite role, working a 36‑hour early shift pattern.
Essential experience of the Senior Mechanical Supervisor:
Demonstrated capability supervising mechanical maintenance within an aviation environment.
Strong technical competence in aircraft maintenance and fault diagnosis.
Proven ability to lead, guide and supervise a team within a regulated maintenance setting.
Sound understanding of aviation safety standards, approved maintenance procedures and quality requirements.
Evidence of currency and recency through a maintained logbook.
Qualifications for the Senior Mechanical Supervisor:
Completion of an engineering apprenticeship, ideally in aeronautical engineering or a military equivalent.
Recognised qualification such as City & Guilds 2675 or 2661 in Aeronautical Engineering and Maintenance, or equivalent.
Security Clearance
The successful candidate must be able to achieve and maintain Standard (BPSS) security clearance for this role.
Many of the positions within our company are subject to national security clearance and Trade Control restrictions. This means that your eligibility for certain roles may be affected by your place of birth, nationality, current or former citizenship, and any residency you hold or have held. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk).
What we offer
Generous holiday allowance
Matched contribution pension scheme, with life assurance
Access to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+
Employee shopping savings portal
Payment of Professional Fees
Reservists in the armed forces receive 10-days special paid leave
Holiday Trading is a benefit that allows UK Babcock employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This Window opens February through to March annually.
‘Be Kind Day’ enables employees to take one working day's paid leave a year (or equivalent hours) to undertake volunteering work with their chosen organisation or registered charity.
Babcock
We’re Babcock — a global FTSE 100 organisation with over 26,000 people working together to make a difference.
Here, you’ll be part of something bigger. From initial design to final decommissioning, your work will contribute to products and services that are essential to national security and public infrastructure. Together, we’re building a future that lasts — not just through the impact we make, but through meaningful careers that respect your work-life balance.
We call that lifetime engineering.
Join us and see how far we can go, together.
We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please email
[email protected] with the subject header ‘Reasonable adjustments requirement’. We’re committed to building an inclusive culture where everyone’s free to thrive. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.
Closing date: 07/09/2026
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