Reliance High-Tech
Service Engineer – Site Based (London)
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Service Engineer – Site Based (London)
Work with advanced security and networked technology solving real-world engineering challenges every day.
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Closing Date: December 31, 2026
Who We Are
Reliance is one of the UK’s leading independent security and safety technology specialists. For 40 years we’ve been trusted by major organisations to protect their people, assets and reputations through the right mix of proven systems, specialist expertise and consistently high service standards.
Fully independent and vendor-agnostic, we combine the capability and footprint of a large national business with the agility, accountability and customer focus you only get from an independent team. We work in demanding, high-stakes environments where governance matters, uptime matters, and getting it right first time matters.
We offer a full suite of services across the lifecycle – from consultancy and design, through installation and project delivery, to service, maintenance, remote support and 24/7 monitoring via our ARC. Reliance High-Tech delivers integrated physical security and critical infrastructure solutions, while Reliance Protect provides lone worker, body worn, and personal safety services – giving clients a joined-up approach to safety, security and risk management.
For more information about our business, visit www.reliancehightech.co.uk/ www.relianceprotect.co.uk.
Our Vision & Values
Serious about Technology, Passionate about People
Reliance’s vision is to be the trusted partner organisations rely on to protect their people, assets and reputations – by combining serious security and safety technology with service that’s genuinely built around people.
We believe technology only delivers value when it is designed well, implemented properly and supported consistently. That is why we are serious about technology – selecting and integrating the right solutions, keeping them resilient and cyber-secure, and making them easy to operate day to day.
We are equally passionate about people – the clients and communities we protect, and the colleagues who deliver the work. We aim to build long-term relationships based on trust, openness and doing what we say we will do, every time.
Your Role
- Provide technical expertise in fault finding and repairs across varied selection of PC/Network based and analogue security systems with a working knowledge of different high end software packages.
- Provide technical expertise in fault finding and repair with a variety of CCTV operating systems from small scale CCTV systems to large Multi-site installations with PC Based Digital Recorders.
- To understand fibre optic transmission systems, LAN/WAN networks and radio telemetry systems to effectively remedy any faults. Liaise with higher grade engineers where required.
- Provide emergency solutions when operating out of hours as specified on the departmental rota.
- Collaborate with all parts of the business to ensure that the agreed scope of works is delivered in line with the customer’s expectations.
- Participate in team meetings and actively contribute towards the business’ activities.
- Strive to maximize personal development and performance and take active part in performance reviews and personal development plans.
- Maintain up to date technical knowledge through internal and external training provision.
- Operate according to the requirements of business-specific applications and processes and the broad application environments (e.g., order submission, stock control, timesheet submission, job closing, etc.)
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Your Team
Hardworking friendly field based engineers who are always willing to help and have a great work ethic.
Line Manager
Regional Service Manager
Responsibilities
- Provide technical expertise in fault finding and repairs of varied selection of PC/Network based and analogue security systems with a working knowledge of different high end software packages.
- Provide technical expertise in fault finding and repair with a variety of CCTV operating systems from small scale CCTV systems to large Multi-site installations with PC Based Digital Recorders.
- Provide technical expertise in fault finding and repair with a variety of Access Control, Intruder, Intercom Systems operating systems from small scale to large Multi-site installations with PC Based front ends.
- Have understanding of fibre optic transmission systems, LAN/WAN networks and radio telemetry systems to effectively remedy any faults. Liaise with higher grade engineers where required.
- Provide emergency solutions when operating out of hours as specified on the departmental rota.
- Collaborate with all parts of the business to ensure that the agreed scope of works is delivered in line with the customer’s expectations.
- Participate in team meetings and actively contribute towards the business’ activities.
- Strive to maximize personal development and performance and take active part in performance reviews and personal development plans.
- Maintain up to date technical knowledge through internal and external training provision.
- Operate according to the requirements of business-specific applications and processes and the broad application environments (e.g., order submission, stock control, timesheet submission, job closing, etc.)
Your Experience
Essential:
- NVQ 3 in Electronic Security or equivalent proven experience
- Knowledge of Access control / CCTV / Intercom / Intruder systems. (minimum of 4 Years)
- Knowledge of Windows Operating Systems.
- Knowledge of digital electronics principles and systems
- Health and Safety
- Working knowledge of TCP/IP and other network fundamentals of UFE’s (Unified Front End)
Desirable – (any Or All):
- CCTV – Synergy/Milestone/Genetec/FLIR/Eagle Eye/ProWatch/
- ACS – Ccure/Lenel OnGuard & S2/Gallagher/CEM/PAC
- Intruder – Honeywell / Texecom
- Intercom – Commend
- PSIM – Genetec/Cortech/
- Recognised Qualification in H&S (IOSH/CSCS)
- IPAF
- Working at Height (Rooftop and Safety Access Certification)
- EUSR
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Your Qualifications
Desirable – (any or all):
- CCTV – Synergy/Milestone/Genetec/FLIR/Eagle Eye/ProWatch/
- ACS – Ccure/Lenel OnGuard & S2/Gallagher/CEM/PAC
- Intruder – Honeywell / Texecom
- Intercom – Commend
- PSIM – Genetec/Cortech/
- Recognised Qualification in H&S (IOSH/CSCS)
- IPAF
- Working at Height (Rooftop and Safety Access Certification)
- EUSR
Your Key Skills & Competencies
Essential:
- Team Player – Co-operation and ability to work with others
- Good Administration and Time Management
- Competent and Independent – Able to work on own initiative and take responsibility for actions, workload and decisions.
- Inquisitive – Have a desire to learn/research, and develop personally and professionally
Desirable:
- Commercial Awareness – understand a role and associated actions have a commercial value and impact to the business and efficiencies are always considered as part of tasks undertaken
Your Aptitudes & Behaviours
Essential:
- Full UK Driving Licence
- Permit to Work
- Ability to complete full personal security screening and be prepared to complete to DV Level if requested.
Desirable:
- Good written and spoken English
- Commercially aware
Your Growth Opportunities
- Training
- Certifications
- Progression
- Exposure to tech/projects
Company Benefits
Working at Reliance means joining an award-winning company that genuinely makes a difference. We combine cutting-edge technology with a team culture built on integrity, agility and trust. You’ll work alongside knowledgeable passionate people who value honesty, collaboration and respect for both customer and colleague.
Your Benefits Include:
- Employee healthcare
- Company sick pay
- Access to 24/ online GP
- 25 days holiday plus BH + 1 charity day per year
- Employee Recognition program
- Employee referral scheme
- Training & Accreditation opportunities
- Access to Boostworks
- Long Service Awards
Our Commitments
Reliance High-Tech is committed to creating a diverse work environment and is proud to be an equal opportunity employer. All qualified applicants will receive fair consideration for employment. Reliance recruits, employs, trains, compensates and promotes regardless of race, religion, colour, national origin, sex, disability, age, veteran status, and other protected characteristics as required by applicable law.
If you’re looking for a role where your ideas are valued, your impact is visible and your work truly matters, this is where your next chapter begins.
To express an interest in this role please send your CV and a covering letter to Careers@Reliancehightech.co.uk.
Contact Us
To express an interest in this role please send your CV and a covering letter to Careers@Reliancehightech.co.uk.
Apply Now
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