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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 assetsOver-site development above major transport infrastructure in a prime central London locationHigh-profile commercial development at a major central London addressSignificant works at a nationally recognised cultural institution involving sensitive refurbishment and infrastructure upgradeMajor capital programme within a leading UK higher education campus involving phased redevelopment and expansion worksHyperscale 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 projectsManage 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 consultantsSupport delivery of mission-critical and large-scale infrastructure environmentsEnsure compliance with relevant UK regulations, standards, and client requirementsContribute to design optimisation, value engineering, and technical innovation

Package

Circa £70,000 basic salaryCar allowanceAll travel expenses coveredStrong forward workload (2+ years secured pipeline)Exposure to landmark UK developments and major infrastructure schemesLong-term progression within a growing and stable design team

About You

Mechanical Engineer with strong building services design experienceProven experience delivering projects through RIBA Stages 1-5Background in consultancy or contractor design environmentExperience working on large-scale commercial, infrastructure, or mission-critical projectsData centre experience highly advantageousStrong 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.

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Principal Mechanical Engineer | Building Services Consultancy | London | Up to £80,000

Were partnering with an ambitious and fast-growing Building Services consultancy based in London that's quickly making its mark in the industry. Since launching in 2020, the business has earned an outstanding reputation for delivering high-quality MEP design solutions, building long-term client partnerships, and securing an impressive level of repeat business.

With a growing portfolio spanning commercial offices, mixed-use developments, retail, industrial, and residential projects, the consultancy is now looking to appoint a Principal Mechanical Engineer to play a pivotal role in its next phase of growth.

If you're looking for a genuine leadership opportunity within a dynamic, entrepreneurial consultancy where your ideas and expertise will directly shape the future of the business, this could be the perfect next step. The role offers a clear and achievable pathway to Director level, making it an ideal opportunity for someone ready to step into senior leadership and influence the long-term success of a growing consultancy.

The Opportunity

Working alongside the Directors, Engineers, and BIM specialists, you'll take ownership of MEP projects from concept through to completion (RIBA Stages 1-6), ensuring exceptional technical delivery while maintaining strong commercial performance and outstanding client satisfaction.

This is far more than a project delivery role. You'll be a key figure within the business, leading projects, developing client relationships, mentoring engineers, supporting business growth, and helping shape the future direction of the consultancy. With succession planning firmly in place, you'll benefit from a clear pathway to Director, giving you the opportunity to progress into a strategic leadership position as the business continues to grow.

What You'll Be Doing

* Lead the mechanical design and delivery of a diverse range of commercial, mixed-use, refurbishment, and fit-out projects.
* Manage projects through all RIBA Stages (1-6), ensuring successful technical and commercial delivery.
* Build and maintain strong relationships with clients, architects, contractors, and key project stakeholders.
* Take full responsibility for project delivery, ensuring quality, programme, and commercial objectives are consistently achieved.
* Oversee surveys, technical reports, specifications, calculations, and detailed mechanical designs.
* Coordinate mechanical designs, BIM models, technical submissions, and drawing packages.
* Carry out site inspections, commissioning reviews, and provide technical support throughout each project lifecycle.
* Ensure designs comply with current Building Regulations, CDM requirements, sustainability objectives, and industry best practice.
* Mentor and develop junior engineers, fostering technical excellence across the team.
* Support business development through client engagement, fee proposals, recruitment, and identifying new opportunities.

About You

You'll be an experienced Mechanical Building Services Engineer who enjoys taking ownership, building lasting client relationships, and leading successful project teams.

You'll ideally have:

* 10+ years experience within Building Services Mechanical Design.
* A degree in Mechanical Engineering or a related discipline.
* Membership of CIBSE, IMechE, or another relevant professional institution (or working towards chartership).
* Proven experience delivering commercial, refurbishment, fit-out, and mixed-use projects.
* Strong technical knowledge with proficiency in AutoCAD, Revit, IES VE, Hevacomp, H2X, Bluebeam Revu, and Microsoft Office.
* Excellent communication, report writing, and stakeholder management skills.
* Commercial awareness with an interest in business development, team leadership, and contributing to the continued growth of the business.

Whats on Offer?

* Salary of up to £80,000, depending on experience.
* 28 days annual leave plus bank holidays.
* A clear and structured pathway to Director level.
* The opportunity to play a key role in the growth and future success of an ambitious consultancy.
* A collaborative and supportive working environment where your ideas and contributions are valued.
* Exposure to a varied portfolio of commercial, mixed-use, retail, industrial, and residential projects.
* Genuine autonomy, responsibility, and long-term career progression within a growing business.

If you're an experienced Mechanical Building Services Engineer looking to take the next step into a senior leadership position with a consultancy that genuinely invests in its people, wed love to hear from you.

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

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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 assetsOver-site development above major transport infrastructure in a prime central London locationHigh-profile commercial development at a major central London addressSignificant works at a nationally recognised cultural institution involving sensitive refurbishment and infrastructure upgradeMajor capital programme within a leading UK higher education campus involving phased redevelopment and expansion worksHyperscale 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 projectsManage 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 consultantsSupport delivery of mission-critical and large-scale infrastructure environmentsEnsure compliance with relevant UK regulations, standards, and client requirementsContribute to design optimisation, value engineering, and technical innovation

Package

Circa £70,000 basic salaryCar allowanceAll travel expenses coveredStrong forward workload (2+ years secured pipeline)Exposure to landmark UK developments and major infrastructure schemesLong-term progression within a growing and stable design team

About You

Mechanical Engineer with strong building services design experienceProven experience delivering projects through RIBA Stages 1-5Background in consultancy or contractor design environmentExperience working on large-scale commercial, infrastructure, or mission-critical projectsData centre experience highly advantageousStrong 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.

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