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Hemiko

HIU Service Engineer

Greenwich Peninsula, Greater London

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hirly's read of this role

Seniority
Mid level
Country
GB
Work mode
On-site / unstated
First seen by hirly
15 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

Hemiko are recruiting for HIU service and repair engineer 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 experience with servicing and repairing HIUs.

We are looking for an experienced engineer with relevant experience of working HIU of various brands 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, operates 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 HIU service engineer to work under/with our Technical Manager to learn and develop while delivering value to the Operations Department.

Specifically, the successful candidate will have competency within the HIU field. They need to have experience servicing HIU's of various manufacturers, and able to fault find and replace parts comfortably. Experience in district heating networks is preferred but not essential.

The compact nature of the business and our rapid growth means that the candidate has significant opportunity to develop their career in a friendly environment working with and alongside a broadly experienced team of commercial professionals of varying levels.

Candidate

We are looking for someone who is organised, self-motivated, and positive in their outlook. The company is relatively small but with very fast growth trajectory over the coming 3 years and beyond. The candidate will be able to work as part of a functional HIU team to which they are assigned and take ownership and fulfil their tasks to a high standard and on time.

The candidate will need to be comfortable communicating with team members, as well as external clients and their respective site-based teams. They will be personable and a good communicator.

We will want you to join our journey toward a more environmentally and technically responsible and effective way of delivering energy systems; moving away from conventional processes into a more innovative and free-thinking environment. Our business culture promotes this approach with a persistent willingness to listen to new ideas and explore new solutions.

Key responsibilities:

Working under the direct supervision of our Technical Manager

Regularly working autonomously

Basic part replacement and occasional breakdown attendance in preparation for sign off

Completion of planned preventative maintenance activities in line with company maintenance schedules

Servicing HIUs and repair works

Completion of fault finding and repairs to HIU’s

Attend reactive callouts to sites to reinstate heat and resolve HIU failures

Management of site-based project work and development of the scope of works for plant remediation.

Safe isolation of equipment before commencing works

Good communication with the team always

Ensure your own system records are kept up to date to ensure accurate and secure records. This will involve the completion of clear and concise online work orders.

Can assist with 1 monthly mechanical PPM checks within plant rooms

Knowledge & Experience

Experience working as a HIU service engineer

NVQ Level 2 in Plumbing / Domestic gas (Advantage).

Part G (Advantage).

Knowledge of heat network energy centers and plantrooms.

Electrical competency (basic).

Competent with safe isolation (mechanical and electrical).

Full UK driving license (valid for at least 12 months)

Remuneration and Info

Remuneration: Base £28,500-33,000.

Discretionary bonus based on individual and business performance.

An inclusive culture that promotes diversity.

Holidays 25 days a year plus statutory holidays - with an option to purchase, or sell, up to an additional 5 days per annual leave year.

Pension plan provision.

Private health care scheme available.

Cycle to work scheme.

Electric car lease scheme.

Health and well-being support.

Continuing learning and development opportunities.

Company laptop/tablet/mobile phone, etc.

40 hour work week.

Application

To apply, please complete the online application form on BambooHR. However, for an informal chat please contact:

Dan Blake, Field Service Manager [email protected] and/or Toby Powell, Operations Director: [email protected]

Original posting on Hemiko's site ↗

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