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Field Service Engineer – Mobile Welfare Units, RECRUITMENT HELPLINE
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Field Service Engineer – Mobile Welfare Units, RECRUITMENT HELPLINE
Experienced Field Service Engineer – Mobile Welfare Units
Job Type: Full-Time, Permanent
Salary: Competitive Salary (Dependent on Experience)
Location: Liverpool – Home-Based – Fieldwork
About The Company
A market leader in the repair and maintenance of towable and static cabins, ensuring construction, civils and events sites nationwide are safe, well-fed and heated.
About The Role
A Field Service Engineer is needed to diagnose, repair and restore mobile welfare units—fixing generators, power systems, heating, water, and waste—while working unsupervised at customer sites.
Key responsibilities include:
- Van-based travel across breakdowns and warranty/service work
- Remote diagnosis via unit telemetry prior to site attendance
- First-time fault resolution, ensuring minimal disruption
Responsibilities
Technical Areas Deployed
Generators & Diesel Engines
- Oil pressure/change faults
- Fuel systems, exhaust/DPF, alternators, AVR, governors, glow plugs, E-stop
- Engines: HATZ, Kubota, Lombardini, Perkins, Stephill (Boss L48/L70/L100)
Plumbing & Water/Waste Systems
- Frozen/burst pipes, tanks, UV filters, water pumps, toilets, waste sensors, leaks
Electrical & Power Systems
- 12V/24V DC (Victron: inverters, Cerbo, MPPT/solar)
- Fuses, relays, wiring looms, sockets, PIR lighting
- Electrical-test compliance and "no power" debugging
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Diesel Heaters
- Glow-pin and fuel-pump failures
- Rewiring, thermostats, frost-related no-heat
Batteries
- Lithium battery (100/200Ah) diagnosis and BMS recovery
- Victron charge settings and deep-discharge fixes
Telemetry & Communications
- SIM/modem faults, remote-monitoring diagnosis
Towing & Chassis
- Lifting rams/pins, wheel-locking, coupling, brake adjustments
Hydraulics
- Power-pack, ram and solenoid issues
Fabrication & Solar
- Structural repairs (doors/hoods, hinges, panels)
- Solar PV and MPPT charge faults
User education is key—1 in 5 faults stem from end-user errors.
Requirements
Essential
- Proven field-service/plant/mechanic experience (mobile units, generators, plant, HGV, marine or other relevant sectors)
- Diesel engine servicing & fault-finding (HATZ, Kubota, Lombardini, Perkins or equivalent)
- 12V/24V DC electrical competence (multimeter diagnostics, wiring, charging systems)
- Confident interpreting telemetry (remote/site data)
- Plumbing/water-system repair skills
- Independent problem-solver with self-supervision
- Full UK driver’s licence (B + E trailer licence or willingness to obtain)
Highly Desirable
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- Electrical safety qualifications (City & Guilds 2391 or 18th Edition)
- Victron systems experience (Cerbo/GX, MultiPlus, lithium/BMS)
- Diesel heating expertise (Webasto, Eberspächer)
- Hydraulics (ram/solenoid diagnostics)
- Solar PV & IT/comms skills (SIMs, modems, routers)
- Relevant safety tickets (CSCS, first aid, manual handling, working at height)
Personal Attributes
- Self-motivated & reliable (customer production is stopped until units are fixed)
- Methodical & safety-focused (especially handling live electrics, fuel, and lifting)
- Resilient & adaptable to outdoor/all-weather conditions
- Honest and transparent in reporting (ascertaining user error vs. fixes)
Working Conditions
- Field-based with company van, tools, and PPE
- Regional travel to customer/hire sites (early starts, 'site hours')
- Breakdown response (may include on-call/out-of-hours cover)
- Physically demanding: heavy lifts, outdoor work, confined spaces
Benefits
- Competitive salary (experience-based)
- Company pension contribution
- Van, tools, & PPE provided
- Manufacturer & in-house training (generators, power systems, telemetry)
Apply now for immediate consideration. Equality in employment is fully supported—recruitment is merit-based.
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