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Mechanical Design Engineer

Job in Sheffield, South Yorkshire, S5, England, UK
Listing for: Trades Workforce Solutions
Full Time position
Listed on 2026-01-02
Job specializations:
  • Engineering
    Environmental Engineer, Mechanical Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Mechanical Design Engineer
- Building Services

Location:

Sheffield or London

Full package please see last section.

Our client is an innovative and rapidly expanding business based in the UK, aiming to invest in and implement over £1 billion worth of heat network projects in the upcoming years. They provide funding, design, construction, operation, and maintenance of low carbon district energy networks and building energy systems for communities, towns, and cities. Their collaborations include local authorities, developers, house builders, and property owners.

They aim to take the lead in decarbonising at the city level. They acknowledge that the decarbonisation of heating and the built environment represents one of the final areas with clear solutions, and this is where their focus lies, along with the allocation of their investments and resources.

They are a forward-thinking company driven by innovative design and proactive intelligence, seeking individuals who can analyze problems and look beyond challenges. Their goal is to lead in both commercial and technical innovation, and they invite team members to join them on this journey.

Some of their current projects
  • The design, installation, operation and funding of district heating system to serve 3500 homes as part of a major regeneration project.
  • The design and installation of a heat network in a rural community to replace oil boilers in 300 homes with centralised low carbon heat generation.
  • The design and installation of a ground source heat pump system to provide heating and cooling to a new development of 300 homes, a gym and office building.
  • The design, installation and operation of a new city centre wide low carbon district heating system.
  • Developing detailed long‑term decarbonisation plans for existing large scale district heating networks to allow them to transition from gas fired CHP‑led generation to low carbon generation.

Our client is absolutely committed to an honest and collaborative approach to all their work, to being innovative in everything they do, always looking for better ways to do things and avoiding the business curses of unnecessary complexity and silos.

They are a young, friendly business in the very rapidly growing low carbon energy sector, which provides significant opportunities for career flexibility and development.

They focus on delivering bespoke solutions with positive outcomes for the communities they serve.

Role

Our client is seeking a highly flexible, self‑starting, post‑graduate engineer with demonstrable experience in the design of Mechanical Building Services. The nominal location of the post will be Sheffield, but we will consider other office locations in London and Carlisle. The role is to support the design and growth of heat network infrastructure in the UK, and the candidate would also be expected to visit prospective client sites and active construction sites throughout the UK from time to time, as necessary.

The nature of the business and our rapid growth means that the candidate has significant opportunity to develop their career in a friendly environment. We are looking to develop teams of engineers that will be able to grow into designing a variety of energy related systems. It is anticipated, therefore, that the candidate would be seeking to broaden their skills horizon.

This position will differ from conventional design responsibilities in that the engineer will be given the opportunity to ‘own’ a design project from inception through to operation. Following the handover to our Operations Team, the engineer will continue to monitor and evaluate feedback from the Operations Team to help refine and improve the design and all future designs.

Specific Tasks
  • Participate in the design and delivery of new energy projects during the pre‑construction and construction phases working with and supported by the wider business.
  • Evaluation of project scope and design inception.
  • Design and implementation of medium to large scale low carbon energy systems, heat distribution networks, controls, plant‑rooms and thermal storage.
  • Production of detailed drawings, reports and specifications.
  • Evaluating existing buildings energy system…
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