Field Service Engineer

An excellent opportunity for an experienced Field Service Engineer Mobile Welfare Units to join a well-established company.

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Job Type: Full-Time, Permanent

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Salary: Competitive Salary, Depending on Experience.

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Location: Liverpool Home Based Working in the Field.

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About The Company:

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They are a market leader in the repair and maintenance of towable and static cabins that keep site teams warm, fed and safe on construction, civils and events sites nationwide.

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About The Role:

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To attend, diagnose and repair mobile welfare cabins in the field restoring generators, power, heating, water and waste systems to full working order, first-time wherever possible, while working safely and unsupervised at customer sites.

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The role is van-based and mobile, covering breakdowns and warranty/service work across customer and hire-fleet sites. A large share of faults are diagnosed remotely (via unit telemetry) before attending, so the engineer must be comfortable interpreting remote data and arriving prepared.

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What the Role Actually Deals With:

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Generators / diesel engines - Oil pressure & oil-change faults, fuel systems, exhaust/DPF, alternator, AVR, governor, glow, E-stop, servicing. Engines: HATZ, Kubota, Lombardini, Perkins, Stephill (Boss L48/L70/L100 units).

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Plumbing, water & waste -Frozen/burst pipes, tanks, UV filters, water pumps, toilets, waste-level sensors, leaks.

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Electrical & power - 12/24V DC systems, Victron kit (inverters, Cerbo, MPPT/solar), fuses, relays, wiring looms, sockets, PIR lighting, \"no power\" / dead-console faults, electrical-test compliance.

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Diesel heaters - Parking/diesel heaters glow-pin and fuel-pump failure, re-priming, rewiring, thermostats, frost-related no-heat.

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Batteries - Lithium battery diagnosis (100/200Ah), BMS behaviour, Victron charge settings, deep-discharge recovery, charge/hold faults.

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Telemetry / comms - Units not updating/communicating SIM/modem, Cerbo, remote-monitoring diagnosis and SIM replacement.

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Towing & chassis - Lifting rams/pins, wheels-down locking, coupling, brakes, tyres getting units mobile.

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Hydraulics - Power packs, rams, solenoids for raising/lowering units.

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Fabrication - Doors, door closers, hoods, structural repair.

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Solar - Panels and MPPT charge faults.

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Roughly 1 in 5 reported faults turn out to be user error so customer education, clear on-site communication and honest reporting matter as much as the wrench work.

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Candidate Requirements

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Essential:

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Proven multi-skilled field service / plant / mobile-mechanic background (welfare units, generators, plant, HGV, marine, motorhome/leisure, or similar).

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Diesel engine fault-finding and servicing (small industrial engines HATZ, Kubota, Lombardini, Perkins or equivalent).

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12V / 24V DC electrical competence fault-finding wiring, fuses, relays, inverters, charging systems using a multimeter.

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Confident reading fault data / telemetry and working from remote diagnostics.

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Practical plumbing / water-system repair skills.

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Strong problem-solving and first-time-fix mindset; comfortable working alone and unsupervised.

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Full UK driving licence; B+E (trailer/towing) entitlement or willingness to obtain.

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Good customer-facing manner and clear written job reporting.

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Highly Desirable:

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Electrical qualification City & Guilds 2391 (Inspection & Testing) and/or 18th Edition (BS 7671); PAT competence.

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Experience with Victron energy systems (Cerbo GX, MultiPlus inverters, MPPT, VRM) and lithium/BMS battery systems.

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Diesel parking/air heater experience (Webasto/Eberspcher-type).

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Hydraulics (power packs, rams, solenoids).

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Fabrication repairs.

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Solar PV, and basic IT/comms (SIM, modem, routers) familiarity.

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Relevant safety tickets (CSCS Card, first aid, working at height, manual handling).

Personal Attributes\n

Self-motivated and reliable the customer's day-rate is stopped until the unit works again.

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Methodical and safety-first, especially around live electrics, fuel and lifting operations.

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Resilient and adaptable outdoor, all-weather, sometimes remote sites.

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Honest reporter records what was found and done, including when a fault is user error or unresolved.

Working Conditions\n

Field-based, mobile role with company van and tools.

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Regional travel to customer and hire sites; some early starts / site-hours working.

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Breakdown-response element may include on-call / out-of-hours cover (to be confirmed).

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Physical role: lifting, working outdoors, in confined welfare-unit plant spaces and all weathers.

What they offer\n

Competitive salary (depending on experience).

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Company pension.

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Company van, tools and PPE.

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Manufacturer and in-house training across generators, power, heating and telemetry.

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Varied, hands-on work with a UK manufacturer that builds what you fix.

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If you feel that you have the relative skills/attributes to fulfil this role then please apply now for immediate consideration.

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The employer fully supports Equality in Employment. All employment is decided based on qualifications, merit and business need.

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