Location
London

Hours
Full Time

Salary
Negotiable

About the Role
The role will work on the HS2 project, the UK’s new high speed rail network designed to stimulate economic growth by connecting 8 of the UK’s 10 largest cities with fast, reliable, and frequent services. Costain+ is delivering the HS2 Rail Systems Tunnel and Lineside Mechanical and Electrical Systems works across the entire HS2 Route (HRS02). This includes the design, supply, manufacture, installation, testing, commissioning, and maintenance (until handover) of tunnel and lineside M&E systems such as tunnel services within shafts, tunnels, and cross-passages, as well as low voltage electrical power distribution along the open route. The role also involves designing, supplying, installing, testing, and commissioning tunnel ventilation systems.

Key responsibilities include supporting the design, review, and implementation of Mechanical systems for HRS02 HS2 lineside works; interfacing and coordinating with other HS2 Rail Systems contractors including track, signalling, telecoms, OHLE, and HV power; reviewing technical documentation, drawings, and specifications; chairing discipline-specific meetings with HS2 and Costain+ partners; undertaking material selection and preparing technical approval and acceptance documentation; ensuring compliance with relevant UK rail industry standards and HS2 Works Information; identifying and managing technical risks; producing quality documentation such as ITPs and installation verification check sheets; supporting assurance, quality, and safety processes throughout the project lifecycle; and providing engineering support during design, installation, testing, and commissioning activities.

Additional responsibilities include close collaboration with the Engineering team and Costain+ partners to coordinate requirements and programme delivery; liaising with procurement to ensure appropriate Mechanical equipment specification and sourcing; maintaining coordination with Design, Safety, Commercial, and Planning teams; and promoting Costain values and behaviours across the project.

Experience
- Previous experience working on UK rail infrastructure projects
- Mechanical engineering experience within large-scale infrastructure or rail systems
- Strong understanding of Mechanical design principles and relevant UK rail industry standards (e.g. Network Rail standards, BS 9990)
- Good understanding of Tunnel Fire Main, Tunnel Ventilation, and Cross Passage Door design and installation in a rail environment
- Experience working within a main contractor or major project environment
- Sound knowledge of Mechanical installation practices and associated equipment

About you
- Ability to interface and coordinate with multiple stakeholders and contractors
- Strong organisational and communication skills
- Proactive in identifying and managing technical risks and problem resolution
- Commitment to quality, safety, and assurance processes
- Collaborative team player who supports project delivery and company values

Qualifications
- HNC, HND, or Degree in Mechanical Engineering or related discipline
- CSCS Card
- Chartered or working towards professional accreditation (e.g. IEng/CEng) is desirable

Desirable
- Experience on major UK rail projects such as HS2 or Network Rail
- Knowledge of Acoustics, Fire Stopping, M&E systems, or rail systems integration
- Familiarity with design and installation of metalwork structures