About the role

  • Senior Mechanical Engineer designing mechanical building services for Babcock's defense and engineering projects. Leading teams and delivering designs across complex dock and facility projects in Plymouth with hybrid working.

Responsibilities

  • Lead mechanical building services design across complex dock and facility projects—from requirements capture and concept, through detailed design, implementation and close‑out, to through‑life support and decommissioning.
  • Deliver designs and substantiation that meet licence conditions, legislation and codes, ensuring our infrastructure remains safe, reliable and mission‑ready.
  • Lead mechanical building services design (heating, ventilation and air conditioning, steam and condensate, industrial gases, domestic and demineralised water) and produce calculations, specifications and technical notes.
  • Guide optioneering and design reviews (including HAZOPs), providing technical advice as a subject matter expert and maintaining design intent across Babcock‑owned systems.
  • Manage workloads, supervise engineers, and ensure quality, configuration control and compliance with relevant standards and legislation.
  • Coordinate with CAD teams to develop models/drawings, conduct site surveys and monitor works, representing Mechanical Services Technical Authority.
  • Support project delivery—estimating, tender responses and technical analysis—while reporting progress and changes of scope.

Requirements

  • Experience in design consultancy or contractor design environments, including leading small teams of engineers.
  • Strong computer literacy with industry-standard digital tools (e.g., Hevacomp) and the mechanical services design lifecycle.
  • Deep understanding of mechanical engineering principles for building services systems (steam and condensate, HVAC, gases, water services).
  • Detailed knowledge of applicable regulations, legislation and technical standards.
  • Proven quality assurance, documentation and stakeholder coordination across complex facilities.
  • Degree (or equivalent) in Building Services Engineering, Mechanical Engineering or related subject; or NVQ Level 5 in an engineering discipline.
  • The successful candidate must be able to achieve and maintain Security Check (SC) security clearance for this role.

Benefits

  • 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 share scheme
  • 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.
  • ‘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
  • Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.

Job title

Senior Mechanical Engineer – Building Services

Job type

Experience level

Senior

Salary

£51,941 per year

Degree requirement

Bachelor's Degree

Location requirements

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