Senior Mechanical Supervisor – Hampton, Middlesex
This role is central to delivering mechanical installation works across framework projects. As Senior Mechanical Supervisor, you’ll ensure safe, high‑quality installation, support efficient commissioning, and maintain strong coordination with Project Managers, MEICA Leads, subcontractors, and commissioning teams.
You’ll be responsible for day‑to‑day supervision of mechanical works, ensuring compliance with client standards, supporting design development, and helping to deliver successful project handover. This role suits someone with strong water‑industry mechanical experience who enjoys problem‑solving, collaboration, and leading teams on site.
What you'll be doing
* Mechanical Installation & Site Supervision
o Lead the mechanical installation works on assigned projects, ensuring safe systems of work.
o Ensure mechanical works meet programme requirements and support efficient commissioning.
o Supervise mechanical subcontractors, maintaining high standards of safety, quality and compliance.
o Review and authorise RAMS; conduct regular mechanical site safety inspections.
o Ensure all mechanical testing, inspections and documentation follow the Inspection & Test Plan.
* Design, Quality & Technical Compliance
o Provide input to mechanical design requirements and specifications.
o Ensure all mechanical installation meets client specifications, Asset Standards and WIMES where applicable.
o Coordinate with specialist support functions (e.g., DSEAR, Technical Authors, Document Control).
o Ensure O&M information and records are complete and issued appropriately.
* Commissioning & Handover Support
o Work closely with the MEICA/Commissioning team throughout commissioning stages.
o Maintain snagging lists and drive completion of outstanding works.
o Support reliability testing and integration with existing operational assets.
o Assist with operational and maintenance activities before takeover.
* Planning, Coordination & Communication
o Ensure mechanical activities are aligned with the overall project programme.
o Attend commissioning meetings and support updates to the MEICA/Commissioning programme.
o Witness FAT testing as required.
o Collaborate closely with the client’s Asset Operations Team to support smooth integration.
About you
* Previous experience in the water industry.
* Proven experience supervising mechanical installation through to successful project takeover.
* Strong understanding of water‑industry mechanical and electrical equipment.
* Experience leading teams on site and working directly with clients.
* Strong understanding of health, safety and environmental requirements.
* Good knowledge of water‑industry processes.
* Competence in Microsoft Office for reporting tasks.
* HNC in Mechanical Engineering.
* CSCS or ECS card.
* EUSR National Water Hygiene Card.
* SSSTS (minimum) or SMSTS (preferred).
The ideal successful candidate would have
* First Aid at Work.
* DSEAR awareness.
* CompEx (FxF or equivalent).
What We Can Offer in Return
With an impressive order book of over £3.8 billion, we are one of the industry’s leading principal contractors, affording you the opportunity to work on some of the UK’s most exciting projects. You will be joining diverse teams working at a high professional level with exceptional commitment. With an ambitious strategy, we’re poised for further growth and success. If you’re committed, talented and enthusiastic, Galliford Try is the right place for you.
We are committed to maintaining the physical and mental wellbeing of all our people through our ‘Be Well’ programme, which offers discounts, advice and support for a range of issues.
We invest in high‑quality training for employees of all levels, from leadership development to apprenticeship programmes. Through our Career Paths initiative, individuals receive tailored training and support to fulfil their potential.
Our Agile Working programme empowers you with flexibility in when, where and how you work. Site and office‑based employees can take advantage of a wide variety of working practices, offering different amounts of structure, regularity and flexibility to suit your needs and those of your wider team.
Our Benefits
* Generous holiday entitlement, increasing with years of service, plus the opportunity to purchase further holidays.
* A wide range of corporate discounts.
* Cycle to Work schemes.
* Comprehensive pension plan.
* Regular Save as You Earn share purchase scheme.
* Private medical scheme options are available for all salaried employees; employee assistance programme provides free 24/7 support.
* Paid for yearly membership to one recognised professional association relevant to your role.
About us
Our purpose is to improve people’s lives through building the facilities and infrastructure that communities need, providing opportunities for our people to learn, grow and progress, working with our supply chain to promote the very best working practice and caring for the environment in which we work. We do this by holding true to our values, delivering excellence for our clients and the community, being passionate about our role in providing vital services, putting integrity at the heart of our business, and collaborating with our clients, supply chain and stakeholders to deliver lasting change and long‑term value.
Additional Information
Galliford Try welcomes applications from candidates who would like to work full‑time, reduced hours or flexibly and this will be discussed in more detail as part of the recruitment process.
We encourage you to confirm any requirements we can reasonably fulfil to make this application a positive experience for you.
As a Disability Confident employer, we are committed to offering an interview to any candidate with a long‑term health condition or disability that meets the essential criteria for the advertised position. Please contact the Resourcing Partner listed within the job advert if you believe this applies to you; we will also discuss any adjustments required for your interview.
Contact: charlotte.gornall@gallifordtry.co.uk
A full job description for this role is available upon request.
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