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Mechanical Project Manager - Heathrow Airpoirt
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Designer Group is seeking an experienced Mechanical Project Manager to support the delivery of mechanical building services works at Heathrow Airport, Terminal 5.
This is a site-based delivery role suited to someone with strong mechanical project management experience in M&E contracting, aviation, infrastructure, industrial, pharmaceutical, mission critical, or large-scale commercial environments.
Role Overview
You will take ownership of mechanical project delivery within a live airport environment, working closely with site management, engineering, commercial, procurement, quality, safety, subcontractors, and client-side stakeholders.
The successful candidate will be responsible for driving the mechanical scope from planning and procurement through installation, testing, commissioning, and handover.
Key Responsibilities
- Lead the delivery of mechanical works at Heathrow Airport, Terminal 5.
- Manage supervisors, engineers, subcontractors, and specialist suppliers.
- Oversee mechanical building services packages including HVAC, pipework, public health, ventilation, plantroom works, mechanical containment, drainage, and associated systems.
- Drive programme delivery and ensure key milestones are achieved.
- Identify project risks early and work with the wider team to resolve them.
- Work closely with the Project QS to manage cost control, variations, reporting, and commercial performance.
- Support procurement planning, RFIs, technical submittals, material approvals, and subcontractor coordination.
- Review drawings, specifications, and design information to resolve buildability, coordination, and installation issues.
- Coordinate mechanical works with electrical, controls, fire, architectural, structural, and specialist trade packages.
- Chair and attend project meetings with internal teams, subcontractors, consultants, and client representatives.
- Monitor labour, materials, plant, and resources to support efficient project delivery.
- Ensure mechanical works are completed in line with quality standards, commissioning requirements, and handover expectations.
- Support testing, commissioning, system validation, documentation, and client handover.
- Maintain strong relationships with the client, delivery teams, subcontractors, and internal stakeholders.
- Promote and uphold Designer Group’s health, safety, quality, and environmental standards at all times.
- Ensure all work is delivered in line with site rules, airport protocols, access requirements, and live environment constraints.
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What We Are Looking For
- 5+ years’ experience in mechanical project management.
- Background working with an M&E contractor, mechanical contractor, principal contractor, or major subcontractor.
- Proven experience delivering mechanical projects from construction through commissioning and handover.
- Strong understanding of mechanical building services, site installation, technical coordination, and project delivery.
- Experience managing subcontractors, supervisors, engineers, and site-based project teams.
- Ability to manage programme, procurement, RFIs, technical submittals, progress reporting, and project risks.
- Strong commercial awareness and the ability to work closely with quantity surveying and commercial teams.
- Good knowledge of health and safety requirements in a live construction or operational environment.
- Strong communication, leadership, and stakeholder management skills.
- Ability to work effectively in a fast-paced, delivery-led site environment.
- High attention to detail and a proactive approach to problem-solving.
- Right to work in the UK without requiring sponsorship.
Experience that Would Be Advantageous
- Previous experience working at Heathrow, Gatwick, Stansted, Luton, London City Airport, or another live airport environment.
- Experience working in Terminal 5 or another live terminal environment.
- Airside, landside, aviation, rail, transport, infrastructure, or secure-site project experience.
- Experience delivering mechanical packages within airport terminals, baggage areas, plantrooms, logistics facilities, commercial buildings, or critical infrastructure.
- Experience with HVAC, ventilation, chilled water, heating, domestic water services, drainage, public health, plant replacement, pipework, and mechanical systems.
- Experience working in live operational environments with strict access, safety, security, quality, and programme controls.
- Experience with testing, commissioning, handover, and system completion processes.
- Experience using BIM, coordinated services drawings, technical submittals, and design review processes.
- Mechanical trade background, building services engineering qualification, or construction management qualification.
- Experience working with permits, access controls, shift working, live services, shutdown planning, and stakeholder-heavy delivery environments.
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About You
You will be a confident Mechanical Project Manager who enjoys taking ownership of site delivery.
You will be practical, organized, and commercially aware, with the ability to lead teams, manage subcontractors, and keep projects moving.
You will be comfortable working in a controlled, live environment where safety, coordination, communication, and planning are critical.
You will also be able to build strong working relationships with clients, consultants, subcontractors, and internal teams.
Why Join Designer Group?
Designer Group is a leading international mechanical and electrical engineering contractor delivering high-quality projects across Ireland, the UK, and Europe.
We work with major clients across sectors including aviation, data centres, commercial, industrial, pharmaceutical, life sciences, and infrastructure.
This role offers the opportunity to work on a high-profile aviation project at Heathrow Terminal 5, while joining a business with strong growth, a solid project pipeline, and clear opportunities for career progression.
Benefits
- Competitive salary.
- Performance-related bonus.
- Health cover.
- Employer pension contribution.
- Commercial vehicle or car allowance, depending on role requirements.
- Career development and progression opportunities.
- Continuous professional development and training support.
- Supportive team environment.
- Opportunity to work on major projects across the UK, Ireland, and Europe.
- Access to a growing international business with a strong pipeline of work.
Apply Now
If you are an experienced Mechanical Project Manager looking for your next challenge in a live aviation environment, we would like to hear from you.
Apply today to join Designer Group and help deliver high-quality mechanical projects at Heathrow Terminal 5.
Designer Group is an equal opportunities employer and welcomes applications from suitably qualified candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, pregnancy or maternity.
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