Senior / Principal Mechanical Engineer

Mechanical Engineer - Senior / Principal (Building Services)
Location: Plymouth / Exeter
Employment Type: Permanent
Overview
A leading global multidisciplinary consultancy is strengthening its Mechanical Building Services capability across Exeter and Plymouth, supporting delivery of complex, high-profile infrastructure and defence projects.
The role sits within a building services team, delivering multidisciplinary engineering solutions across defence, infrastructure, healthcare, justice, education and commercial developments.
A significant proportion of workload is within secure environments requiring high technical assurance, resilience and performance-led engineering design.
Key Responsibilities
- Lead mechanical building services design across all RIBA stages (0–7)
- Design HVAC systems including heating, cooling, ventilation and associated plant
- Provide technical leadership across multi-disciplinary project teams
- Produce and review calculations, specifications and detailed design outputs
- Ensure compliance with UK regulations, CIBSE guidance and internal standards
- Attend and lead client and stakeholder meetings
- Mentor and support junior engineers
- Oversee technical quality and design assurance across projects
- Contribute to BIM coordination and digital engineering processes
Requirements
- Degree qualified in Mechanical Engineering or Building Services Engineering
- Strong consultancy experience in mechanical building services design
- Proven delivery of UK construction projects across multiple stages
- Ability to lead technical design on complex, multi-disciplinary schemes
- Chartered Engineer or working towards (required for Senior/Principal progression)
- Experience in defence or secure infrastructure advantageous
- Strong Revit / BIM capability desirable
Benefits
- Work on nationally significant defence and infrastructure programmes
- Clear progression into Associate and leadership roles
- Hybrid and flexible working culture
- Strong global technical expertise network
- Long-term secured pipeline of major projects
If you''re interested, please contact Conner Richards at RGB Recruitment – crichards@rgbrec.co.uk