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Salary
≈ $64k – $102k per year (Estimated)
Location
In office (London)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 29, 2026. QCS Staffing scores A on the Alion truth index.

Overview
Company
Impact
Profile match
QCS Staffing, formerly Quanta Consultancy Services, is a specialist recruitment agency headquartered in Berkhamsted, Hertfordshire, that places contractors, permanent staff and executives in life sciences, data centres, IT, renewable energy and heavy lift. Founded in 1992, it has worked for clients in more than 30 countries and runs offices in the UK, the United States, Ireland, Puerto Rico and the Netherlands, including one in Research Triangle Park, North Carolina. Its assignments include project, process, CQV and automation engineers, construction and electrical design managers, procurement advisers and network engineers on client capital projects.
Senior Mechanical Engineer - Permanent - UK, London - Data CentresWe are currently supporting a specialist engineering and project delivery company supporting mission-critical construction and infrastructure projects across complex technical environments. The organisation provides installation, coordination and engineering expertise to help deliver high-quality projects safely, efficiently and on schedule. We are looking for a Senior Mechanical Engineer to join our client’s team and support their current project in London. What you’ll do:

Lead the design and development of advanced cooling and infrastructure solutions for mission-critical environments, ensuring performance, reliability and scalability.Produce detailed engineering designs, drawings and technical documentation from concept through to deployment and commissioning.Manage testing, validation and performance analysis activities, identifying opportunities to improve efficiency, reliability and operational performance.Provide technical leadership and mentorship to engineering teams while collaborating with internal and external stakeholders on project delivery.

What you’ll need:

Bachelor's degree in Mechanical Engineering or a related engineering discipline.Extensive experience in mechanical engineering design, ideally within data centres, HVAC, critical infrastructure or similar environments.Strong understanding of thermal management, fluid systems, heat transfer and cooling technologies.Experience using 3D CAD software and managing testing, commissioning and performance optimisation activities.

Be part of a project driving innovation in data centre operations. Apply today!#LI-DB1

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