49 Best security systems technician Jobs in Doncaster (September 2026)

Pay: From £30,000.00 per year Job Description: Lyndon Systems Ltd – Doncaster £30,000 Starting Salary + Overtime Potential Earnings Up to £40,000 Per Annum 4-Day Working Week – Monday to Thursday Full-Time, Permanent Due to continued growth, Lyndon Systems Ltd is looking for a Mobile Service Engineer to join our established team. This is a varied, hands-on role working both independently and as part of our wider service team, attending customer sites across the UK to carry out repairs, maintenance and fault finding on specialist commercial vehicle conversions and welfare vehicles. The majority of work will be completed within the normal working week; however, due to the nationwide nature of the role, occasional overnight stays and working away from home will be required. The Role Your responsibilities will include: • Attending customer sites across the UK, • Diagnosing mechanical and electrical faults, • Carrying out servicing, repairs and maintenance, • Fault finding on 12V electrical systems and vehicle conversion equipment, • Completing repairs efficiently and to a high standard, • Liaising directly with customers while representing Lyndon Systems professionally, • Working independently and managing your own workload, • Working with our Doncaster-based technical and service teams when required, • Occasional overnight stays when working further afield, • Completing occasional workshop-based repairs at our Doncaster site What We're Looking For We are looking for someone practical, reliable and confident working independently. Ideally, you will have: • Previous experience as a Service Engineer, Mobile Engineer, Vehicle Technician or similar, • Good mechanical and electrical fault-finding skills, • Experience with commercial vehicles, welfare vehicles or specialist vehicle conversions would be advantageous, • A good understanding of 12V electrical systems, • A practical, can-do approach to problem solving, • Good communication and customer service skills, • The ability to work independently while representing Lyndon Systems to a high standard, • A full UK driving licence – a clean licence is preferred but not essential Specific product and conversion training can be provided to the right candidate. Salary & Benefits • Starting salary of £30,000 per annum, • Potential earnings of up to £40,000 per annum with overtime, • 4-day working week – Monday to Thursday, • 3-day weekend as standard, • Overtime opportunities, • Company vehicle, • Company phone, • Tools and equipment provided, • Full training on Lyndon Systems products and conversions, • Permanent, secure position, • Opportunity to become a key part of a growing UK service operation About Lyndon Systems Ltd Lyndon Systems Ltd is an established specialist vehicle conversion company based in Doncaster. We design, manufacture and support a wide range of commercial vehicle conversions for major fleet operators and customers throughout the UK. As our customer base and vehicle volumes continue to grow, we are expanding our mobile service operation and are looking for the right person to grow with us. Job Type: Full-time, Permanent Working Week: Monday to Thursday – 4 days Salary: £30,000 starting salary with potential earnings up to £40,000 including overtime Location: Doncaster based, with travel to customer sites throughout the UK Travel: Occasional overnight stays/working away required Licence: Full UK Driving Licence required – clean licence preferred but not essential If you're an experienced engineer or technician looking for a varied mobile role with a 4-day working week, a £30,000 starting salary and the opportunity to earn up to £40,000 with overtime, we'd like to hear from you. Apply today with your CV Benefits: • On-site parking Work Location: On the road

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