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Senior Mechanical Design Engineer

Requisition ID: 46044

Domain: Energy Management/Urban Energy

Contract type: Permanent

Schedule: Full-Time

EQUANS is looking for a Senior Mechanical Design Engineer to join our team in the UK on a permanent basis. This is a full time role working 37.5 hours per week. On offer is a salary banding of £46,000 to £58,500, bonus and benefits package. 

A Senior Mechanical Design Engineer is sought to join the Design Team of EQUANS Urban Energy. The team undertakes the design of district heating and cooling networks throughout the UK. The team has the capability to design energy centres, pre-insulated buried piping networks, heat pumps and plant room heat exchanger assemblies.

The Senior Mechanical Design Engineer position is characterised by the ownership of projects to develop district networks, including multi-disciplinary design coordination with both internal and external stakeholders. The role includes the technical oversight and management responsibility for a small number of Mechanical and Buried Network Design engineers.


What will you deliver? 

  • The design of district network schemes and energy centres, including buried piping systems, energy centres, boilers, CHP units, thermal stores, plate heat exchanger assemblies, pumps, chillers, heat pumps and auxiliary systems.
  • Technical oversight of the work of a small number of design engineers.
  • Management responsibility for a small number of design engineers.
  • The use of CAD packages in the creation of engineering drawings.
  • The production of tender scopes, specifications, bills of materials and engineering calculations.
  • Technical support and design coordination with internal and external stakeholders, including business development and project managers, contractors, clients and design consultants.
  • Attendance at project sites for surveys, reviews, key delivery milestones and commissioning

What can we offer you? 

On offer is a salary banding of £46,000 to £58,500, bonus and benefits package, which includes; 

  • 25 days annual leave (+ public holidays) 
  • Life Cover equivalent to 2 times annual salary 
  • Employee discount shopping schemes on major brands and retailers 
  • Gym membership discounts  
  • Cycle to work scheme  
  • Holiday purchase scheme 
  • 2 corporate social responsibility days per year 
  • Broad range of learning opportunities, such as professional qualifications, collective/individual training, and personalized support programmes 
  • Attractive Employee Referral Rewards Scheme 
  • Access to our growing employee networks including WiE (Women in EQUANS), RISE (BAME), LGBTQI+, Working Parents, YPN (Young Persons Network) and our Disability Network 
  • 24/7 Employee Assistance Program and access to mental wellbeing app 

Who are we looking for? 


  • BEng / BSc Engineering Degree (Building Services, Mechanical, Civil or similar, minimum of a 2:1 standard).
  • Working towards CEng Chartered Engineer status.
  • A thorough working knowledge of relevant CIBSE Guides, British Standards, BSRIA, IGEM and other industry authority publications.
  • Experience liaising with both internal and external clients, contractors and suppliers.
  • A working knowledge of the Construction & Design Management Regulations 2015.
  • Experience of writing sub-contractor scopes of supply, specifications and major plant tender documentation.
  • Experience of the detailed design of energy centres, CHP, boilers, chillers, heat pumps and district heating network installations.
  • Experience of producing Piping & Instrumentation Diagrams (P&IDs) and engineering schematics in 2D AutoCAD.
  • Experience of producing or working with 3D models for energy centre, CHP, boilers, chillers, heat pumps and district heating buried network installations in Autodesk 3D AutoCAD, Revit or similar.
  • An ability to size and specify valves, pumps, instruments and piping components.
  • Experience with the creation and detailing of bills of material for plant equipment, pumps valves and instrumentation.
  • An ability to specify major plant such as boilers, CHP units, pumps, heat exchangers, heat pumps and chillers.
  • Experience of producing as-built record drawings and supporting the compilation of Operation & Maintenance manual content for delivered designs.

Who are we? 

EQUANS is a world leader in energy services with nearly 100,000 employees working in more than 50 countries, with an annual turnover of over 17 billion euros.   

In the UK & Ireland, EQUANS is a provider of technical, FM, regeneration and energy services – with specialist capabilities in smart buildings, green mobility, district & embedded energy and decentralised renewables. 

EQUANS’ 13,500 UK & Ireland employees combine these activities to help businesses, public sector organisations and government to embrace the energy transition towards net zero, and also the digital & industrial transitions that are redesigning the way we move, work and live. 

EQUANS is a Bouygues group company. 


What’s next? 

If this role is of interest to you, please click below to register, apply, and track your progress! A member of our Resourcing Team will review your application and be in touch. 

At Equans we’re committed to delivering a culture where everyone’s voice is heard and supported. We know the value a diverse workforce creates, delivering better results for our people, customers, and stakeholders. Diversity and inclusion is at the core of what we do, should you join Equans you’ll find a welcoming and open workplace where you’re supported and encouraged to be your true self at work. You’ll also have access to our growing employee networks including WiE (Women in Equans), RISE (BAME), LGBTQI+, Working Parents, YPN (Young Professionals Network) and our Disability Network.  

For this role, you must have evidence of the right to work in the UK. Unfortunately, we are not able to offer a re-location package with this job role.  Certain roles may require applicants to undergo a Disclosure check, as noted in the role requirements. 

The EQUANS Resourcing Team supports this job advert. Agency involvement is not required. All related enquiries must come to the resourcing team not direct to EQUANS Managers. 

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EQUANS is a multi-technical expert that offers a comprehensive range of services across facilities management, energy management and construction.

As an international market leader, we help our customers in the 3 major transitions of today: the energy transition, the industrial transition and the digital transition.