Skip to main content

Principal Mechanical Engineer

Principal Mechanical Engineer – Data Centres/Building Services 

Location: London

Type: Permanent, Full-time

Salary: Competitive, dependent on experience

A leading international M&E consultancy is seeking an experienced Principal Mechanical Engineer to join its growing Data Centre and Technology team.

Key Responsibilities

Lead the mechanical design of complex data centre and technology projects.

Manage projects from concept through to construction and completion.

Lead and mentor mechanical engineering teams.

Develop and review mechanical designs, specifications, calculations and technical documentation.

Coordinate designs with clients, architects, contractors and other disciplines.

Manage project programmes, deliverables, quality and technical compliance.

Provide technical leadership and resolve complex engineering issues.

Attend and lead client and design team meetings.

Support project delivery, commercial management and business development.

Ensure designs comply with relevant UK regulations, standards and Health & Safety requirements.

Requirements

Degree/HNC/HND in Mechanical Engineering or equivalent.

CEng with professional membership such as CIBSE or IMechE.

10+ years' experience in mechanical engineering, ideally within consultancy.

Strong experience delivering data centre, mission-critical or other complex building projects.

Proven experience leading multidisciplinary engineering teams.

Strong knowledge of mechanical building services, including HVAC, cooling, heating and associated systems.

Experience taking projects from concept/design through construction.

Strong client-facing, communication and leadership skills.

Good understanding of UK Building Regulations, CIBSE guidance and relevant standards.

Commercial awareness and experience managing project deliverables and fees.

Proficient in Microsoft Office and relevant engineering/design software.

Willingness to travel when required.

Benefits

Competitive salary

Hybrid working

23–28 days' annual leave

Pension and healthcare

Bonus opportunities

Training and professional development

Holiday purchase scheme

Wellness initiatives

Strong career progression and mentoring opportunities

Apply now for a senior opportunity within a growing Data Centre and Technology team

Principal Mechanical Engineer

London, UK
Full time

Published on 09/22/2026

Share this job now