Location: Wokingham and Reading, Berkshire
Pay Rate: £43,000-45,000 per annum (dependent on experience)
Shifts: Operational flexibility required (including days, nights, weekends, and on-call support)
We are the National Energy System Operator (NESO) — an independent, impartial, and expert organisation at the centre of Great Britain's energy system. We are driven by collaboration, innovation, and a shared purpose: to ensure everyone has access to clean, affordable, and reliable energy.
At NESO, we value inclusivity, diversity, and belonging. We build strong relationships, empower one another, and ensure every voice matters. Together, we are shaping the future of energy and supporting communities across the nation.
As a Deputy Site Protection Manager, you will play a key role in the leadership and delivery of security operations within a Critical National Infrastructure (CNI) environment.
This is a senior operational management role where you will oversee the day-to-day delivery of security services, lead Supervisors and Officers, and ensure that all operations are effective, compliant, and aligned with site and regulatory requirements.
You will act as the operational lead in the absence of the Site Protection Manager, taking ownership of incidents, decision-making, and performance across the security function.
- Oversee the delivery and performance of all security operations across the site
- Lead incident management, ensuring structured response, escalation, and resolution
- Maintain full situational awareness of site activity, identifying risks and operational gaps
- Ensure compliance with all security procedures, Assignment Instructions (AIs), and regulatory requirements
- Manage Supervisors and Officers, ensuring performance, discipline, and professionalism
- Support workforce planning, rostering, and resource allocation to maintain operational resilience
- Ensure all incidents, reports, and system issues are accurately recorded and reviewed
- Act as the operational lead during out-of-hours periods and in the absence of the Site Protection Manager
- You will play a key role in protecting infrastructure critical to the UK's energy system
- Your leadership will directly impact site security, resilience, and operational continuity
- You will operate in a high-security environment where strong decision-making is essential
We are seeking experienced and capable security professionals with strong operational management experience.
- SIA Front Line Door Supervisor & CCTV Operator License.
- Significant experience in a management role within security.
- First Aid at Work qualification (or willingness to obtain).
- Level 3 qualification in Security Management or related field.
- Full UK Manual Driving License.
- British citizen with a UK Passport or hold dual Nationality.
- Lived and worked in the UK for the past 5 years.
- Minimum of 3 GCSEs including English and Maths at grade C/4 or above (or equivalent).
- Experience managing teams, incidents and operations.
- Strong understanding of security systems and procedures.
- Experience within government, CNI, or high-security environments.
- SC Clearance - must be obtained as a condition of your employment.
- Level 4 qualification in Security Management or related field.
- NEBOSH/IOSH or equivalent Health & Safety qualification.
- Experience in audits, compliance, and investigations.
- Fluent in verbal and written English with excellent communication and interpersonal skills.
- Strong operational management and leadership capability.
- Excellent stakeholder management skills.
- Ability to manage incidents, investigations, and escalations.
- Strong understanding of compliance (SIA, GDPR, H&S, site policies).
- Competence in using security systems (CCTV, access control, reporting systems).
- Analytical skills to assess risk and improve operations.
- Working knowledge of health & safety and compliance requirements.
- Excellent IT skills and a good understanding of all MS Office applications.
- Professional and confident leader.
- Strong decision-making and problem-solving skills.
- Resilient and able to manage high-pressure situations.
- Highly organised with strong attention to detail.
- Proactive and solution-focused mindset.
- High integrity and ability to handle sensitive information.
You will be an experienced security professional with the ability to manage operations and lead teams in a high-security environment. You will be confident in making decisions, managing incidents, and ensuring consistent delivery of high standards.
You will demonstrate strong leadership, professionalism, and the ability to balance operational demands with compliance and governance requirements.
You will receive structured site-specific training and ongoing development, including:
- Operational management and leadership training
- Security systems (CCTV, access control, alarms)
- Incident management and crisis response
- Compliance, governance, and regulatory awareness
- Ongoing professional development and career progression within Mitie
All successful candidates will be required to complete:
- Competency test (including eyesight, hearing, and fitness test)
- Drug and alcohol screening
- Security vetting and clearance (SC)
Our recruitment process is fair, transparent, and based on merit. You must successfully pass each stage to progress:
- Application & Situational Judgement Test (SJT)
- Application Review (Sift)
- Pre-Employment Checks (including vetting and fitness assessment)
