Closing Date
2026-02-27
Job Title: Senior Cyber Security Analyst
Location: Durrington, hybrid
Contract Type: Permanent
Hours: 37 per week
Salary: to be discussed at screening stage
There has never been a more exciting time to join Southern Water’s Digital Directorate.
We are in the midst of a bold transformation modernising how we protect our critical infrastructure, strengthening our cyber resilience and embedding digital innovation at the heart of everything we do.
About the role
As our new Senior Cyber Security Analyst, you will play a pivotal role in shaping and maturing the Cyber Security Operations function. This is a senior, high‑impact position with direct influence over how we detect, investigate and respond to cyber threats across both IT and OT environments. Your work will safeguard millions of customers, protect essential services, and directly contribute to our long‑term digital resilience strategy.
What you will be responsible for
You will lead the maturity, delivery and continuous enhancement of our Digital Forensics, Incident Response (DFIR), threat detection and security monitoring capabilities—bringing deep technical authority, strategic insight and operational leadership to our cyber defence.
Key responsibilities include:
1. Owning and uplifting DFIR and security monitoring capability maturity, including strategy, tooling optimisation and roadmap delivery. [
2. Leading complex digital forensic investigations, ensuring evidential integrity, quality analysis and actionable resilience improvements.
3. Directing proactive threat intelligence and threat‑hunting activities to shape risk understanding and future security investment.
4. Driving governance, reporting and assurance aligned to frameworks such as CAFv4, providing clear operational performance insights.
5. Developing, mentoring and technically guiding cyber analysts and SOC partners, acting as a senior escalation point where needed.
6. Enhancing SIEM, EDR, SOAR and log management performance through new use cases, automation and advanced correlation.
Additional requirements specific to this role
7. Occasional work during major incident activity to support cyber response leadership.
8. Engagement across IT, OT, Digital and external partners, including regulated environments and critical infrastructure operations.
9. Alignment to regulatory frameworks including ISO 27001, NIS Regulations, NIST CSF, MITRE ATT\&CK and CAFv4.
What you’ll bring to the role
Essential
10. Deep expertise in DFIR, incident lifecycle management, threat detection methodologies and forensic evidence handling.
11. Significant hands‑on experience with SIEM, EDR and SOAR platforms such as Splunk, Defender for Endpoint, CrowdStrike Falcon or similar.
12. Ability to lead complex investigations from detection through to recovery, reporting and improvement planning.
13. Strong understanding of cloud, hybrid and OT environments, including identity and access security models.
14. Degree‑level education or equivalent experience in Cyber Security, Digital Forensics or related fields, alongside recognised certifications (e.g., GCIH, GCFA, GCFE, CISSP).
15. Excellent communication skills, with the ability to translate complex technical findings into clear, business‑ready insights.
Desirable
16. Experience within critical national infrastructure or utilities sectors.
17. Exposure to developing SIEM detections, dashboards and automation workflows.
18. Passion for continuous learning, innovation and embedding a strong cyber‑aware culture.
Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025-30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.
You will be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation
At Southern Water, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you—even if you don’t tick every box. Your unique skills and experiences could be exactly what we need.
If this role isn’t quite what you’re looking for but are keen to be contacted about opportunities at Southern Water, you can register your details here: Introduce Yourself (myworkdaysite.com- Introduce Yourself)
Our Commitment to Diversity
We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.
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