John Callan
Senior Security Professional - UK Head of Security
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About
A results-driven senior security professional with extensive experience across port security, complex infrastructure environments, and multi-site contract management. Currently UK Head of Security for Navigator Terminals UK, holding strategic and operational accountability across four bulk-liquid storage terminals regulated under ISPS, DfT, and NPSA frameworks. Recognised for translating complex regulatory requirements into practical security solutions — spanning Physical Security Framework design, RFP and tender development, and threat intelligence analysis.
Maintains trusted relationships with government security bodies, Harbour Police, and Port Security Committees. A calm, motivated strategic leader who builds cohesive teams and drives performance improvement in demanding, compliance-critical environments.
Experience
UK Head of Security - Navigator Terminals UK Limited - Seal Sands · North Tees · Thames · Windmill
(2025-01)
- Accountable for security strategy, compliance, and operations across four ISPS/DfT/NPSA-regulated terminal sites.
- Liaise with government bodies including CTSA, NPSA, DfT, and NSI, and with Harbour Police and Port Security Committees at PD Ports and the Port of London Authority.
- Produce three monthly security intelligence reports for the SLT, combining CTSA threat reporting, internal assessment, and geopolitical intelligence.
- Designed the Physical Security Framework setting enforceable standards for all contracted security providers.
- Developed the CCTV and access control RFP framework and phased upgrade plan across all sites.
- Manage purchase orders and supplier performance, enforcing KPIs, SLAs, and disciplinary processes.
- Lead mobilisation, TUPE, and transition planning for security contracts, including ATEX-compliant patrol systems.
- Author site security procedures including Access Control, UAV Incursion Response, and Protest and Strike Action Response.
- Conduct Security Vulnerability and Port Security Risk Assessments, delivering remediation plans per NPSA, DfT, and ISPS requirements.
- Manage the security budget across all four sites, verifying invoices against contracted services.
Deputy Branch Operations Manager - Securitas UK - Portfolio of 15 sites nationally
(2024-01 - 2025-01)
- Managed security operations across 15 sites nationally, with direct responsibility for ~70 staff including officers, supervisors, and site managers.
- Authored and maintained Assignment Instructions, SOPs, and site-specific risk assessments across the portfolio.
- Delivered structured training for frontline staff and supervisors on procedures, emergency response, and access control.
- Conducted monthly KPI and SLA review meetings with clients, driving continuous improvement across the portfolio.
- Led recruitment, induction, and workforce planning; managed disciplinary and performance processes.
Deputy Branch Manager / Security Team Leader - Securitas UK - including BAE Systems / Morgan Sindall · Anord Mardix (interim)
(2022-01 - 2024-01)
- Deputised for the Branch Manager across operational, contractual, and people management functions.
- Led a team of 14 security officers on a high-security defence site, protecting staff, assets, and sensitive areas.
- Planned and delivered quarterly and annual security drills, auditing team performance and response capability.
- Designed and maintained Assignment Instructions, SOPs, and risk assessments; coordinated security training.
- Conducted monthly KPI and SLA meetings with clients; led recruitment and disciplinary processes.
Deputy Security Operations Manager - Pearce Bentley Security Services
(2021-01 - 2022-01)
- Managed security operations across a portfolio of sites with a team of ~30 staff, ensuring continuity of delivery.
- Designed and surveyed new site assignments, producing Assignment Instructions, SOPs, and risk assessments.
- Built operational resilience frameworks, supporting contract acquisition and mobilisation.
Regional Security Supervisor / Line Manager - Wilson James Ltd / Mitie Security · Associated British Ports Authority
(2020-01 - 2021-01)
- Oversaw security operations at Associated British Ports Authority, liaising with MOD, Civil Nuclear Constabulary, Police, and Counter Terrorism units.
- Led recruitment, induction, and training; managed TrackTik patrol software, identifying operational trends.
- Drafted and maintained Assignment Instructions, SOPs, and risk assessments; led emergency response drills.
Security Officer - Northern Security
(2018-01 - 2020-01)
Field & Tracing Agent - Quickdox / SignDox / iSign / Sign and Secure
(2008-01 - 2018-01)
Process Operator - Robert McBride Ltd
(2005-01 - 2008-01)
Soldier - HM Forces — British Army
(2002-01 - 2005-01)