Security Officer (relief) in London

Protect customer property, people, and assets by providing security services in line with site Assignment Instructions (AIs). Meet or exceed KPIs and SLAs through accountable, high-quality service that supports contract retention. Undertake ongoing training and development to maintain and improve professional performance.

Main Duties

• Provide security cover across various client sites, working flexible day and night shifts of 10 to 12 hours as required by operational needs.
• Read, understand, and comply with all Assignment Instructions, Standard Operating Procedures (SOPs), Risk Assessments, and site-specific Security Instructions.
• Protect client property, assets, infrastructure, and rolling stock from theft, vandalism, trespassing, anti-social behaviour, and other criminal activities.
• Deter and prevent graffiti attacks on rolling stock and site facilities through proactive patrols and visible security presence.
• Conduct regular internal and external patrols of premises, buildings, compounds, railway infrastructure, and perimeter boundaries in all weather conditions.
• Monitor sites for suspicious activity, security breaches, safety hazards, or unauthorized access and take appropriate action in accordance with company procedures.
• Maintain effective access control by verifying the identity and authorization of employees, contractors, visitors, and delivery personnel before granting entry.
• Operate security systems, gates, barriers, and access control equipment to ensure site security is maintained at all times.
• Respond promptly and professionally to alarms, incidents, emergencies, and requests for assistance, following established procedures and escalation processes.
• Liaise with client representatives, contractors, emergency services, and members of the public in a professional and courteous manner.
• Record and report all incidents, accidents, security breaches, and suspicious activity accurately using occurrence books, patrol logs, and incident reporting systems.
• Carry out vehicle and personnel checks where required and ensure compliance with site security policies.
• Identify and report security vulnerabilities, damaged infrastructure, faulty equipment, or health and safety concerns that could affect site operations.
• Maintain a high standard of personal appearance, professionalism, and customer service while representing the company and client.
• Ensure all duties are performed in accordance with company policies, industry regulations, and health and safety requirements.
• Provide detailed handovers to oncoming security personnel to ensure continuity of operations and effective communication between shifts.
• Remain vigilant at all times and contribute to maintaining a safe, secure, and controlled environment for staff, visitors, contractors, and client assets.

Training

• Medical Assessment (which will include a stand alone drug & alcohol test) You must pass a medical examination before the vetting process can begin. If you fail the medical, your application will not proceed further.
• Vetting / Screening After passing the medical, the vetting team will carry out background and security checks. You must successfully pass these checks to continue.
• Work Safety Induction (WSI) Once vetting is completed, you will attend the Work Safety Induction course. This course must be passed before moving to the next stage.
• Depot Track Awareness (DTA) After completing the WSI, you will attend the Depot Track Awareness course. This course must also be passed.
• Pass Requirements You are allowed up to 3 attempts to pass both the WSI and DTA courses. If you do not pass within those 3 attempts, your job offer will be withdrawn (revoked).

In short: Medical > Vetting > WSI > DTA > Employment, with a maximum of three attempts to pass the WSI and DTA training courses.

What we offer

• £14.80 per hour pay
• Free Oyster travel card (London transport covered)
• 12-hour shifts, including both day and night work (rotating or mixed schedule)
• Mitie employee benefits package
• Cycle to Work scheme (salary sacrifice for a bike, tax savings)
• Virtual GP service (online doctor appointments)

What we are looking for

• Previous Security Experience (including control room experience)
• SIA License