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Breakdown Combustion Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Hemiko
Full Time position
Listed on 2026-02-18
Job specializations:
  • Engineering
    HVAC Tech / Heating Engineer, Environmental Engineer, Energy Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: Greater London

Hemiko are recruiting for a Breakdown Engineer (Commercial Gas) reporting to the Technical Manager.

The successful candidate will be responsible for delivering operation and maintenance services across our fleet of heat networks. We are looking for someone who has a valid commercial gas certificate, with experience servicing and repairing commercial boiler equipment. Experience maintaining and operating commercial non‑gas plant, e.g., pumps, valves, strainers would be beneficial. The role will be varied, undertaking PPMs, reactive call‑outs, planned repairs and project work, to further improve reliability and network efficiency across the fleet of networks we operate.

We are looking for an experienced engineer with at least 2 years relevant experience of working within plant rooms on boiler in excess of 1MW who is knowledgeable, reliable and someone who will contribute positively to our safe & supportive working culture.

We appreciate that no one’s circumstances are the same and having the flexibility in working environments work is essential to our wellbeing. If this is significant to you let us know when you apply, and we will discuss how this could work in your role.

Hemiko strives to be an equal opportunities employer and welcomes applications from anyone regardless of ethnic origin, gender, gender expression, disability, age, trade union activity, marital status, religious belief, sexual orientation, or socioeconomic background.

We are Armed Forces friendly. We welcome applications from ex‑Armed Forces personnel, reservists, armed forces veterans, cadet instructors and military spouses/partners.

About Hemiko

Hemiko is a fast‑growing innovative business which is looking to invest in and deliver over £1bn of heat network projects in the coming years. We fund, design, build, operate and maintain low‑carbon district energy networks and building energy systems. This work is for communities, towns and cities. We work with local authorities, developers, house builders, and property owners.

We are looking to lead on town and city‑scale decarbonisation. We recognise that the decarbonisation of heating and the built environment is one of the least known and “solution clear” areas – this is where we are focused and where we will be deploying our investment and our resource.

We are an innovative, design and proactive intelligence‑led company, looking to attract people who think around a problem and past an issue. We want to be at the front end of commercial and technical innovation and are looking for team members to come on that journey.

Some Of Our Current Projects Include
  • The design, installation, operating, and funding of a district heating system to serve 3,500 homes in Clapham as part of a major regeneration project.
  • The design, installation, and operation of a new city centre‑wide low‑carbon district heating system for the City of Cardiff.
  • The design, installation, and operation of a ground source heat pump system to provide heating and cooling to a new development of 300 homes, a gym and office building in South London.
  • The design and installation of a heat network in a rural community in Cambridgeshire to replace oil boilers in 300 homes with centralised low‑carbon heat generation.
  • 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.

Hemiko is absolutely committed to an honest and collaborative approach to all our work, always looking for better ways to do things and avoid the business curses of unnecessary complexity and silos.

We are a young, friendly business in the very rapidly growing low‑carbon energy sector, which provides significant opportunities for career flexibility and development. We focus on delivering bespoke solutions with positive outcomes for the communities we serve.

The Role

Hemiko are seeking a Breakdown Engineer (Commercial Gas) to work under/with our Technical Manager to learn and develop while delivering value to the Operations Department.

Specifically, the successful candidate will have a strong competency within the commercial gas field, with…

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