OT Security Officer

OT Security Officer – SSE plc

Base

Location:

Perth, Aberdeen, Inverness or Glasgow

Salary: £58,100 – £87,100 plus performance‑related bonus and a range of benefits to support finances, wellbeing and family.

Working Pattern: Permanent

The OT Security team within SSEN Transmission is responsible for securing the digital systems that keep the lights on. This role leads a small team (4–6 analysts and engineers) in assurance and testing of our established security controls to ensure they remain effective. Responsibilities include checking adherence to processes, monitoring and reporting on software vulnerabilities, and directing audits, inspections and penetration testing.

This is an opportunity to be part of a growing team with a clear mission to protect critical infrastructure.

• Lead and prioritise a programme of security audits and assurance to identify vulnerabilities within existing controls, including secure configuration, IDAM, PAM and software vulnerability management.
• Create annual Network and Information Systems (NIS) reports for our regulator (Ofgem), assessing achievement against the Cyber Assessment Framework (CAF).
• Monitor and audit our supply chain to ensure security requirements are included in contracts and suppliers deliver against these commitments.
• Support the delivery of cyber‑resilience improvement projects to reduce risk and improve security maturity.
• Contract external resources to undertake independent control reviews and audits, including control maturity assessments, supply‑chain assessments and penetration tests.

• Experience undertaking control and maturity assessments, ideally with the NCSC Cyber Assessment Framework (CAF). Understanding of other frameworks such as NIST CSF and ISA/IEC
  62443 is beneficial.
• Experience working within an OT environment, preferably for a large, regulated utility, and understanding the limitations of applying controls within OT.
• Experience leading teams, prioritising workload, developing junior members and establishing effective ways of working.
• Ability to work and communicate effectively with stakeholders from deep technical experts to senior leaders.
• Experience producing content for regulatory audiences, including price‑control submissions and regulatory reporting.

SSE has a bold ambition – to be a leading energy company in a net‑zero world, building the world’s largest offshore wind farm and investing over £20 billion in renewable energy. The IT division powers growth across all SSE business areas by ensuring systems, software and security are ready for a low‑carbon future.

• Private healthcare and gym membership discounts.
• Wellbeing benefits: free online GP and 24/7 counselling service.
• Interest‑free loans on tech and transport season tickets, or a new bike through the Cycle‑to‑Work scheme.
• Generous family entitlements: maternity, adoption pay and paternity leave.

SSE will make reasonable adjustments to support your application and experience. Contact David Brickell ( / 01738 275 846) to discuss support.

Apply online through the “Apply Now” box on this page. We will be in touch after the closing date to let you know whether your application will proceed. If offered the role, you will need to complete a criminality check and a credit check before starting work.