Portfolio Security Officer

Unity; Greater London; On-site; GBP 28,000 - 34,000; Full time

Job summary

Unity is seeking an experienced on-site Security Officer to protect a central London portfolio of premium commercial properties. You will be the first line of protection outside core hours, maintaining vigilance, discretion, and professional conduct to reassure tenants and the property team.

Working 2pm–10pm Monday to Friday with occasional weekends, you will conduct access control, patrols, and nightly close of amenities, log incidents, and liaise with FM and contractors to ensure secure,

Qualifications

• Experience in commercial or multi-tenant buildings with security focus.
• Strong understanding of security protocols and emergency procedures.
• Able to work independently and travel between sites efficiently.
• Professional conduct; clear communicator.
• Excellent timekeeping and attention to detail.

Responsibilities

• On-Site Security at the main building; manage access control and liaise with reception and FM staff.
• Conduct portfolio security patrols and verify doors, alarms, and security of amenities.
• Respond to remote alarm alerts, document incidents, and coordinate with contractors and emergency services.

Skills

Security mindset

Access control systems

Emergency procedures

Time management

Communication skills

Tools

CCTV systems

Job description

This role is responsible for ensuring the safety, security, and operational integrity of a central London portfolio of premium commercial properties. Acting as the first line of protection and reassurance for tenants and the property team outside of core office hours, this role demands vigilance, professionalism, and discretion while ensuring all buildings are properly secured and prepared for the night. It is suited to an experienced professional who values responsibility, routine, and the consistent delivery of efficient service across the company's real estate assets.

Working hours - 2pm - 10 pm, Monday - Friday with occasional weekends.

Key Responsibilities

• On-Site Security at the Main Building (2:00 PM - 8:00 PM) Ensure smooth handover with daytime concierge and Facilities Management staff, noting any ongoing issues, required actions, or customer liaison needs. Maintain a visible presence at reception and within communal areas of Byron House. Engage with tenants in a polite and friendly manner. Monitor and manage access control to ensure only authorized personnel are on site. Conduct scheduled patrols and building checks according to established procedures, with a key focus on securing and shutting down communal amenities, including wellness facilities and event spaces, at 9:00 PM. Identify and report any cleanliness, health and safety, building system or security issues using the building's reporting system. Oversee the nightly close of the lower ground floor gym facility, ensuring equipment and the amenity are checked for issues that need to be reported, and that the facility is ready for use the next morning. Oversee the nightly close of the rooftop amenity (liaising with external parties as required should there be scheduled events), ensuring the facility is cleaned and checked for issues that need to be reported, and that the facility is ready for use the next morning.
• Portfolio Security Patrols (8:00 PM - 10:00 PM) Follow a pre-determined route visiting key portfolio sites, including commercial offices and retail units across Central London in close proximity. Conduct internal and external security checks to confirm buildings are locked, alarmed where applicable, and free of unauthorized access or activity. Monitor for issues such as lighting faults, doors or windows left unsecured, vandalism, trespassing, or maintenance concerns, and report as necessary. Complete and submit checklists to confirm site visits and findings.
• Incident Response & Reporting Serve as the first point of contact for any remote alarm alerts across the portfolio outside of office hours. Respond promptly and appropriately to unusual activity, alarm activations, or emergencies, attending incidents personally or escalating to out-of-hours service desk, Facilities Management, or emergency services as required. Maintain detailed, accurate, and professional incident logs. Liaise effectively with contractors, FM teams, and emergency responders in line with established procedures.

Person Specification Essential Skills & Experience

Experience within commercial or multi-tenant buildings, with a security mindset. Strong understanding of security protocols, emergency procedures and access control systems. Able to work independently, manage time effectively and travel between sites efficiently. Professional in conduct; confident communicator. Strong attention to detail Able to identify problems or risks before they escape. Able to respond proactively and accurately to situations. Excellent timekeeping skills.