Overview
Mobile Building Services Engineer (Commercial Gas Bias) – Full time, Permanent – 8am to 5pm. Works 99% within the M25 with a head office in Bishop's Stortford. Call‑out rota: 1 week in 7. Overtime: Time and a half or double time, plus a £150 standby allowance. Reports to the Operations Manager.
About DMG Delta
DMG Delta is a leading building services provider, delivering high‑quality, reliable services across a wide range of commercial and residential sites. The engineering team is central to this commitment.
Key Responsibilities
* Lead gas and mechanical maintenance, fault resolution, and compliance across commercial client sites.
* Carry out PPMs and reactive works on boilers, plant rooms, and associated systems.
* Attend multiple sites as directed by the Service Desk to meet operational needs.
* Support wider building services, including basic electrical, plumbing, or HVAC tasks as required.
* Respond to breakdowns and emergencies promptly and safely.
* Maintain accurate documentation, including gas safety records and service reports.
* Provide professional client updates and technical advice on site.
* Follow and champion all health and safety practices and gas safety regulations.
* Continuously develop your skills and stay current with new technologies and standards.
Essential Qualifications
* Commercial Gas qualifications – COCN1, CODNCO1, CIGA1, CORT1, ICPN1, TPCP1A or equivalent.
* NVQ Level 3 in Mechanical Engineering or equivalent.
* Full UK driving licence.
* Experience in commercial gas maintenance and HVAC plant operations.
* Proven competence in fault finding, repair and commissioning of commercial gas systems.
* Experience with both planned maintenance and reactive call‑outs.
* Eligibility to work in the UK.
Desirable Qualifications
* Domestic gas (CCN1).
* F‑Gas or HVAC awareness.
* Electrical qualification (18th Edition or similar).
* IPAF / PASMA certification.
* Mobile role experience, multi‑disciplinary building services background.
Skills & Abilities
* Strong diagnostic and problem‑solving skills.
* Ability to read mechanical drawings and plant schematics.
* Clear communication and reporting skills.
* IT literate for mobile devices and job‑management software.
* Ability to work independently and collaboratively.
Personal Attributes
* Reliable, committed to high‑quality workmanship.
* Adaptable and flexible.
* Strong customer focus and professional approach.
* Team player with a collaborative mindset.
Physical Requirements
* Physically fit for lifting, working at height, and confined spaces.
* Willingness to travel across multiple sites and participate in on‑call rota.
Health & Safety
* Strong awareness of gas safety and compliance standards.
* Commitment to safe working practices.
* Proactive in hazard identification and risk management.
To Apply
If you are a qualified, motivated, and flexible commercial gas engineer looking to progress your career in building services, we want to hear from you.
Check the link at the top of the page to apply.
Benefits
* 25 days annual leave + 8 bank holidays.
* Generous sick pay and accident insurance.
* Loyalty bonus after 2 years' service.
* Life assurance (2x salary).
* Private GP access and 24/7 counselling via EAP.
* Annual eye care reimbursement.
* Reward & recognition schemes.
* Training Academy and mentor programme.
* Tech Desk support.
* Company events.
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