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Field Service Engineer – Mobile Welfare Units, RECRUITMENT HELPLINE
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Field Service Engineer – Mobile Welfare Units, RECRUITMENT HELPLINE
Excellent Opportunity: Experienced Field Service Engineer – Mobile Welfare Units
Job Type & Location
Full-Time, Permanent Salary: Competitive (dependent on experience) Dundee – Home-based – Fieldwork
About the Company
A market-leading provider of repair and maintenance services for towable and static cabins, ensuring construction, civil, and event sites stay warm, fed, and safe. Specialists in mobile welfare units across the UK.
About the Role
As a Field Service Engineer, you will:
- Diagnose and repair mobile welfare cabins in the field, focusing on:
- Restoring generators, power, heating, water, and waste systems to full functionality.
- First-time fixes where possible.
- Remote working (drive independently, often unsupervised).
- Van-based role covering breakdowns, warranty, and service tasks across customer and hire-fleet sites.
- Diagnostics via unit telemetry — must interpret remote data and arrive prepared.
Key Technologies & Systems Handled:
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Generators & Diesel Engines
- HATZ, Kubota, Lombardini, Perkins, Stephill (Boss L48/L70/L100 units).
- Faults: oil-pressure/oil-change, fuel systems, exhaust/DPF troubleshooting, alternator, AVR, governor restarting, glow plugs, E-stop control.
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Plumbing, Water & Waste
- Frost/burst pipe repairs, tanks, UV filters, water pumps, toilet sensors, leaks.
-
Electrical & Power Systems
- 12/24V DC circuits, Victron components (inverters, Cerbo, MPPT/solar), fuses, relays, wiring looms, sockets, PIR lighting, dead-console faults, diagnostic tests.
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-
Diesel Heaters
- Parking/diesel heaters: glow-pin, fuel-pump re-priming, wiring, thermostats, frost trouble-shooting.
-
Batteries & Telecoms
- Lithium battery diagnostic (100/200Ah), BMS, Victron settings, deep-discharge recovery.
- Telemetry/comms: unit legacy SIM failures, Cerbo malfunctions, remote signal repair.
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Chassis & Towing
- Lifting rams, wheel pins, brakes, trailer coupling, tyres.
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Hydraulics
- Power pack, solenoid packing/valve adjustment.
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Fabrication & Solar
- Welfare unit repairs (doors, owners, hoods) and MPPT solar charge faults.
On-the-Obermueller Key Challenges
With 20% of issues being user-misuse, customer education is as critical as technical competence:
- Clear communication on-site.
- Transparent fault reporting, including identifying avoidable problems.
Candidate Requirements
Essential)
- Multi-skilled experience in mobile/full-service engineering:
- Welfare units, generators, HAV desks maintenance (fleet/truck/plant) (HGV, marine, motorhomes).
- Dispel diagnosis & servicing of small industrial HATZ/Kubota/Lombardini – engines and Perkins equivalents.
- 12V/24V DC systems competence:
- Wiring, testing fuse/revv relays, inverters, charge failure (via multimeter).
- Ability to read telemetry/data and address remote issues before arrival.
- Plumbing/leak repair ability: Underground, waste systems.
- Self-starting mindset: Problem-solving unsupervised.
- UK driving licence (B+E trailer entitlement or fast-track pledge).
- Professional customer engagement, documentation cleanliness skilled.
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(Highly Desirable)
- Certification/City & Guilds 2391 (testing) and 18th Edition Wiring Regulations (BS 7671/ lymphocyte).
- Victron energy system experience: GX Cerbo, MultiPlus inverters, MPPT/solar, VRM systems.
- Diesel heating specialist: Webasto/Eberspächer fault-finding.
- Hydraulics experience (ram, solenoid stabilisation).
- Fabrication/weld skills (door repair, chassis).
- Basic networking/SIM/ICN/telem familiarity.
- Technical safety certification: CSCS, First Aid/height/short-haul lifting.
Personal Attributes
- Resilient & reliable: Works under customer deadlines.
- Safety conscious: Especially with live electrics, fuel, lifting technology.
- Works flexibly in outdoor environments (all-weather).
- Honesty in reporting all findings, including re-fault threads, user errors.
Working Conditions
- Field-based with company van merchs & tools.
- Covering Dundee + large hire markets in construction on-site (possible early starts).
- Shift/out-of-hours focal areas communicated.
- Physical tasks: Lifting, confined-space work, weather impact.
What the Employer Offers
- Competitive salary (merit-based).
- Company lifetime pension.
- Provision van, tools, PPE.
- Fully funded training (supplied technical manuals and in-house training).
- Own custom builds warranty work with a leading manufacturer.
Apply Now
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