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Contract

Senior Mechanical Building Services Design Engineer

Rullion Managed Services
Manchester
money-bag Negotiable
Posted: 16 October 2026 (Today)
Closing date: 15 November 2026
Ref: 225733196

Job title: Senior Mechanical Building Services Design Engineer
Job Type: 6 month temporary contract with possible extension
Location: Manchester / Hybrid
Pay rate: Competitive
IR35: Outside IR35

Are you a talented Mechanical Building Services Design Engineer looking to take ownership of major infrastructure projects and play a key role in the delivery of complex, high-value engineering schemes?

We''re seeking a Senior Mechanical Building Services Design Engineer to lead the design and delivery of mechanical building services and HVAC systems across critical infrastructure and energy projects, including substations, power transmission facilities, HVDC projects, and other mission-critical environments.

What You''ll Be Doing
* Leading mechanical and HVAC design from concept through to construction support
* Producing and reviewing calculations, specifications, reports and technical studies
* Designing HVAC, plumbing/public health and associated building services systems
* Performing heating & cooling load calculations, ventilation design, pipework and ductwork sizing, and plant selection
* Managing technical risks, design reviews and compliance with UK regulations and industry standards
* Collaborating with multidisciplinary teams including civil, structural, electrical and fire engineering specialists
* Mentoring junior engineers and providing technical leadership across projects

What We''re Looking For
* Degree qualified in Mechanical or Building Services Engineering
* Chartered Engineer (CEng) or working towards chartership
* Strong experience in mechanical building services and HVAC design
* Sound knowledge of CIBSE guidance, CDM regulations, UK Building Regulations and relevant standards
* Experience with design software, engineering calculations, CAD and 3D modelling tools
* Proven ability to lead technical workstreams and engage with stakeholders at all levels

Desirable Experience
* Critical infrastructure or industrial projects
* Data centres and mission-critical facilities
* Power generation, transmission or substations
* BIM and digital engineering environments

This is an excellent opportunity to work on nationally significant engineering projects, influence technical delivery, and progress your career within a highly respected engineering environment.

Apply Now
Interested in this position? please click "apply now"

Please note that applicants must have the right to work in the UK. We cannot provide VISA sponsorship.

We try to respond to all applicants, but sometimes this is not possible due to high volumes of applications; if you have not heard from us within 14 days, regrettably it means you have been unsuccessful on this occasion.

This vacancy is being advertised by Rullion Ltd acting as an employment business
Since 1978, Rullion has been securing exceptional candidates for a range of clients; from large well-known brands, to SMEs and start-ups. As a family-owned business, Rullion''s approach is credible and honest, focused on building long-lasting relationships with both clients and candidates.

Rullion is a forward-thinking recruitment company that specialises in providing a wide range of talent consultancy services to a diverse client base; from small start-ups to large household names.
We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

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