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Combustion Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Apex Resourcing Solutions Ltd
Full Time position
Listed on 2026-06-13
Job specializations:
  • Trades / Skilled Labor
    Maintenance Technician / Mechanic, HVAC Tech / Heating Engineer, Building Maintenance, Installation Technician
Salary/Wage Range or Industry Benchmark: 55000 GBP Yearly GBP 55000.00 YEAR
Job Description & How to Apply Below
Location: Greater London

Overview

Due to growth, we are currently recruiting for a Commercial Gas Engineer on behalf of a fast growing company who design, build and operate district heating networks. This work is for communities, towns, and cities. They work with local authorities, developers, house builders, and property owners.

Operating for over 10 years, they have a number of offices in the UK and also overseas. Their services include the design, installation, maintenance and management of plant rooms and heat networks on behalf of local authorities and property developers.

They are a fast‑growing business who are looking to invest and deliver over £1bn of heat network projects in the coming years.

We are looking for someone 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 they operate.

This is a permanent position, based in London, and is paying £55k per annum. Other benefits include van & fuel card, annual bonus, overtime, 25 days annual leave plus bank holidays, company pension, private healthcare, training schemes and development opportunities. It is working Monday to Friday, 40 hours per week.

The compact nature of the business and 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. The role does have involvement in an on‑call rota, so the successful candidate will be expected to work on this on‑call rota. Any hours worked whilst on‑call are paid at overtime rates (1.75x hourly rate).

Responsibilities
  • Working under the direct supervision of the Lead Commercial Engineer.
  • Completion of planned preventative maintenance activities in line with company maintenance schedules (commercial gas boilers, pumps, actuators, plate heat exchangers, pressurisation units, degassers).
  • Repair and reinstatement of commercial plant (as per above).
  • Completion of fault finding and repairs to commercial gas boilers and other equipment including pumps and pipework.
  • Attend reactive call‑outs to sites to reinstate heat and resolve plant failures.
  • Take part in an on‑call rota and attend callouts (typically 1 week in
    4).
  • Review root causes for plant failure (resolve operational issues which arise).
  • Management of site‑based project work and development of the scope of works for plant remediation.
  • Safe isolation of equipment before commencing works.
  • Ensure maintenance 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.
Skills & Attributes
  • Valid Commercial Gas Qualifications.
  • Operational knowledge of commercial gas boilers is required. Knowledge of heat network energy centres and plant rooms, or comparable systems is desirable.
  • Able to read technical drawings e.g., P&IDs & mechanical schematics.
  • Electrical competency (basic) preferred.
  • Good communication and customer service skills.
  • The ability to work independently and use your own initiative.
  • An eye for detail and a desire to work to a very high standard.
  • Full UK Driving License.
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