Job Description
We’re Hiring: Senior Mechanical Engineer (Rail & Infrastructure)
Contract: £450- £550 per day (Outside IR35)
London based
ASAP start
We are seeking a driven and motivated Senior Mechanical Engineer to join our Rail & Infrastructure Engineering team. In this key role, you will take charge of the design, coordination, and technical delivery of mechanical systems driving the HS2 programme.
Operating within a fast-paced, multidisciplinary MEICA environment, you will lead complex work packages across the entire project lifecycle—from initial concept and detailed design straight through to construction, testing, and commissioning.
The Role at a Glance
- Focus: Major rail infrastructure, station environments, tunnels, and complex mechanical assets.
- Environment: Collaboration with tier-1 contractors, clients, and multidisciplinary digital engineering (BIM) teams.
- Leadership: Driving technical excellence while mentoring a talented pool of graduate engineers and technicians.
Key Responsibilities
Mechanical Design & Technical Leadership
- Lead the design of complex HVAC, tunnel ventilation, environmental control, public health, drainage, and fire suppression systems.
- Prepare, review, and approve critical engineering deliverables including hydraulic calculations, ventilation data, equipment schedules, and technical specifications.
- Provide robust technical guidance, mentoring, and resource planning support to junior engineers and design technicians.
Coordination, BIM & Integration
- Interface seamlessly across electrical, controls, civil, structural, and architectural disciplines to deliver fully integrated solutions.
- Champion digital engineering delivery, ensuring designs are buildable, maintainable, and optimized within the BIM environment.
Design Assurance & Commissioning
- Ensure strict compliance with HS2 Technical Standards, Building Regulations, CIBSE Guidelines, and CDM Regulations 2015.
- Participate in interdisciplinary design reviews (IDC/IDR) and lead mechanical design risk assessments.
- Attend Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT), supporting the commissioning teams through to final handover.
What We Are Looking For
Essential Criteria
- Education: Degree in Mechanical Engineering, Building Services Engineering, or a related discipline.
- Experience: 5–10 years of mechanical engineering design experience within rail, infrastructure, transportation, utilities, or heavy building services.
- Technical Depth: Mastery of HVAC, ventilation/smoke control, pumping systems, and engineering assurance frameworks.
- Communication: Excellent stakeholder management skills with a proven track record of leading technical work packages.
Desirable Extras
- Prior project experience on HS2, Network Rail, London Underground, or Crossrail.
- Chartered Engineer (CEng) status, or actively working toward it.
- Membership in a professional institution (IMechE, CIBSE).
- Hands-on familiarity with digital tools: Revit MEP, Navisworks, Hevacomp, or IES VE.
Why Join Us?
This is more than a standard engineering job—it is an opportunity to shape a legacy infrastructure network. You will collaborate with industry-leading specialists, utilize advanced digital design platforms, and play a direct role in delivering energy-efficient, sustainable, and safe mechanical solutions for the next generation of rail travel.
📩 Ready to Shape the Future?
If you are a highly motivated engineer ready to tackle complex technical interfaces and elevate your career, we want to hear from you.
Apply directly today or connect with our recruitment team to arrange a confidential discussion.
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