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Full time
Administrative

Security and Fire Systems Service Engineer

Ranger Services Holdings LimitedSt. Mary Cray, Orpington🇬🇧United KingdomPosted 13 Jul 2026

Quick Overview

Salary
£32k - £40.5k/yr
Work Type
On Site
Schedule
Full Time
Level
Mid Senior

Job Description

Security and Fire Systems Service Engineer

Full-time, Monday to Friday 08.00 -17.00

Greater London

Fidelity, part of the Ranger FS Group is a progressive and expanding NACOSS Gold and BAFE FIRE Gold accredited Integrated Security and Fire Systems company concentrating exclusively on commercial applications. This is a great opportunity to join a friendly and motivated team, with a family ethos and excellent career progression opportunities.

Fidelity's core services are:

Access Control

Video Surveillance Systems

Audio/Video Entryphone

Intruder Alarms

IP Based Systems

Fire Alarms

Smoke Vents

Emergency Lighting

Gate Automation

Door Automation

Responsibilities:

  • Corrective maintenance works - to include fault finding, troubleshooting and a first-time fix whenever possible
  • Remedial and small works
  • Preventative maintenance
  • Client on site liaison
  • Working with monitored systems in liaison with our Alarm Receiving Centre
  • Act as a Fidelity ambassador when out in the field
  • Completion of all required site and electronic paperwork promptly and with attention to detail
  • Demonstrate good industry knowledge of all required disciplines.
  • Participate in regular ongoing internal and external technical, regulatory, and health and safety training
  • Mentorship and guidance for junior engineers and apprentices
  • Participate in out-of-hours On Call Rota

Key Skills:

  • Demonstrate good industry knowledge of all disciplines of integrated Security and Life Safety Systems.
  • Technically strong on electrical principles
  • Excellent problem-solving and fault-finding skills
  • Sound knowledge of relevant regulations and standards
Personal Attributes:

Good communication skills with both customers and colleagues

Multi-disciplined Service Engineer

Team orientated

Strong time-management skills

Confident user of Microsoft Office and working with networked/IP-based systems

Proactive

Able to run works autonomously

The ability to supervise and motivate other engineers

Self-motivated and willing to use initiative

Salary and Benefits:

£32,000 - £40,500, depending on skills and experience

Company vehicle and fuel card

Out of hours On Call is required roughly one week in six.£385/week standby payment, plus callouts at:£90 for travel to and first hour on site, your standard overtime rate for subsequent hours

Paid overtime at 1.5x standard hourly rate

Company private health insurance scheme for employees and families

Pension scheme

Company mobile, tablet and laptop

Full uniform including PPE

All specialist tools provided

20-25 days annual leave plus Bank Holidays

Staff social events

Training and progression opportunities

Field engineers working area Greater London, with vast majority of sites within M25

This job description is designed to outline the main duties and responsibilities associated with the role, and is not intended to be an exhaustive list of all duties performed.

As an equal opportunities employer, Ranger FS is committed to the equal treatment of all current and prospective employees and does not condone discrimination on the basis of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership. We aspire to have a diverse and inclusive workplace and strongly encourage suitably qualified applicants from a wide range of backgrounds to apply and join Ranger.


Skills

Microsoft Office

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