24/7 Security Operations Supervisor — London GSOC Lead

Sibylline Ltd; Greater London; On-site; GBP 42,000 - 54,000; Full time

Job summary

Sibylline Ltd. is seeking an experienced Security Operations Supervisor to join us in an embedded role supporting the client’s 24/7 global security operations in London.

You will provide shift leadership, oversee alarms, dispatch, access control, incident management, CCTV monitoring, and QA processes while acting as akey escalation point for Operators. This onsite role requires 5x8 hour shifts (early, late, nights), including weekends, with flexibility to cover gaps.

Qualifications

• Bachelor's degree or equivalent experience preferred.
• 3+ years of operational security, GSOC, or security operations experience.
• Must have a valid SIA CCTV licence prior to starting employment.
• Excellent written communication and ability to produce accurate reports.

Responsibilities

• Supervise daily shift activities and provide leadership to Operators.
• Review alarms, incidents, dispatches, and escalations for proper handling.
• Support emergency response and incident coordination activities.
• Monitor CCTV, access control, and badge management for quality and compliance.
• Review reports, logs, and documentation for accuracy and completeness.
• Conduct shift handovers and maintain operational continuity across shifts.
• Provide coaching, mentoring, and on-the-job training.
• Support workforce scheduling, coverage, and escalation management.
• Act as shift lead during critical incidents and facility disruptions.

Skills

Security operations

Shift leadership

Incident management

CCTV monitoring

Access control

Report writing

Education

Bachelor's degree or equivalent

Tools

CCTV platforms

Alarm monitoring software

Dispatch software

Job description

Sibylline Ltd. is seeking an experienced Security Operations Supervisor to join us in an embedded role supporting the client’s 24/7 global security operations in London.

You will provide shift leadership, oversee alarms, dispatch, access control, incident management, CCTV monitoring, and QA processes while acting as akey escalation point for Operators. This onsite role requires 5x8 hour shifts (early, late, nights), including weekends, with flexibility to cover gaps.