Principal Mechanical Design Engineer – Building Services

Principal Mechanical Design Engineer

London 70,000 \+ Car Allowance \+ Travel Paid Major Projects Building Services

A leading MEP contractor is seeking a Principal Mechanical Design Engineer to join a well–established and growing electrical design team in London. This is a senior technical appointment within a delivery–focused, contractor–led environment operating across some of the UK's most complex building services projects.

The design team consists of approximately 25 engineers, supported by a strong secured pipeline of work providing at least two years of forward workload visibility.

The Opportunity

You will take a leading role in delivering electrical design across multiple high–value projects through RIBA Stages 1–5, combining technical leadership, coordination, and hands–on design oversight.

The current workload includes a major hyperscale data centre development ( 400m\+ core project value), forming a flagship scheme within the business, alongside a strong portfolio of complex commercial, institutional, and mixed–use developments across London.

Live and upcoming project portfolio includes:

• Large–scale urban redevelopment scheme within a key central London regeneration zone, involving multiple mixed–use assets


• Over–site development above major transport infrastructure in a prime central London location


• High–profile commercial development at a major central London address


• Significant works at a nationally recognised cultural institution involving sensitive refurbishment and infrastructure upgrade


• Major capital programme within a leading UK higher education campus involving phased redevelopment and expansion works


• Hyperscale data centre programme with mission–critical electrical infrastructure and high resilience requirements

This is a highly design–led contractor environment where engineers are trusted with real ownership, technical responsibility, and direct client engagement.

Key Responsibilities

• Lead Mechanical design delivery across multiple concurrent major projects


• Manage design development from early concept through detailed design and construction stages (RIBA 1–5\)


• Provide technical leadership, mentoring.


• Coordinate with internal disciplines, clients, and external consultants


• Support delivery of mission–critical and large–scale infrastructure environments


• Ensure compliance with relevant UK regulations, standards, and client requirements


• Contribute to design optimisation, value engineering, and technical innovation

Package

• Circa 70,000 basic salary


• Car allowance


• All travel expenses covered


• Strong forward workload (2\+ years secured pipeline)


• Exposure to landmark UK developments and major infrastructure schemes


• Long–term progression within a growing and stable design team

About You

• Mechanical Engineer with strong building services design experience


• Proven experience delivering projects through RIBA Stages 1–5


• Background in consultancy or contractor design environment


• Experience working on large–scale commercial, infrastructure, or mission–critical projects


• Data centre experience highly advantageous


• Strong leadership, coordination, and stakeholder management skills

Why Apply?

This is an opportunity to join a stable and expanding design function delivering some of the UK's most technically challenging and high–value projects, including a significant presence in the data centre and major infrastructure sector. You'll have autonomy, responsibility, and the chance to influence design delivery at a senior level across a secure long–term pipeline.

Eden Brown is acting as an Employment Agency in relation to this vacancy.

This listing is from indeed. View original listing ↗