Telecommunication Engineer jobs in United Kingdom

As a Senior Cyber Security Analyst, you will play a critical role in strengthening Thames Water’s digital defenses by maintaining and optimizing security operations tools and processes. You’ll focus on monitoring, analyzing, and responding to cyber threats, while supporting the SOC team and ensuring effective incident management across the business.

Your role will involve collaborating with technology and business stakeholders, investigating security alerts, enhancing tooling performance, and supporting the delivery of continuous improvement and risk reduction initiatives. You’ll also contribute to readiness for significant incidents and play a key role in proactive threat hunting and compliance reporting.

• Security Incident Response: Investigate security alerts from SIEM and third-party MSSPs, triage and respond to incidents, and support root cause analysis to drive remediation.
• Stakeholder Engagement: Work closely with technology and business teams to communicate cyber risks, recommend actions, and ensure proportionate implementation of controls.
• Tool Performance & Optimization: Monitor and enhance the performance of SecOps tools such as Microsoft Sentinel, PAM, and EDR/XDR systems, including alert tuning and automation.
• SOC Support & Escalation: Act as a key contact and escalation point for the SOC team, providing guidance and mentoring to support operational effectiveness.
• On-Call & Incident Readiness: Participate in a 24/7/365 on-call rota with our MSSP partners, supporting out-of-hours investigations and maintaining incident readiness.
• Threat Hunting & Continuous Improvement: Perform proactive threat hunting, recommend new security controls, and contribute to continuous improvement of SecOps processes.
• Compliance & Documentation: Maintain security documentation, support GDPR, NIS, and ISO 27001 compliance, and collect metrics to report on operational effectiveness and risk posture.

Base Location: Hybrid – Flexible working with travel to Thames Water offices as required

Working Pattern: Full Time / 36 Hours per week

Essential Experience:

• Minimum of 3 years in a technical cyber security role, ideally within a large enterprise
• Experience working in or with a Security Operations Centre (SOC)
• Structured approach to incident triage and issue resolution
• Experience remediating cyber risks in complex digital environments
• Working with third-party security partners or MSSPs

Essential Technical Skills & Qualifications:

• Strong knowledge of IT infrastructure, networking, and end-user computing
• Experience with SIEM tools, particularly Microsoft Sentinel
• Ability to write and tune Kusto Query Language (KQL) queries
• Hands-on experience with PAM, MFA, and other SecOps tools
• Excellent communication skills with the ability to explain technical issues to non-technical stakeholders

Desirable Skills & Qualifications:

• Microsoft Security certifications (e.g. SC-200, AZ-900)
• Cyber security certifications such as CISSP, CISM, or CCSP
• Degree in Cyber Security, Computer Science, or related field
• Familiarity with firewalls, IDS/IPS, VPNs, and NAC
• Experience mentoring or leading SOC analysts

• Salary range up to £70,000 per annum.
• Annual Leave - 26 days holiday per year increasing to 30 with the length of service (plus bank holidays).
• Generous Pension Scheme through AON.
• Access to benefits supporting health, wellbeing, and finances, including health MOTs, physiotherapy, counselling, Cycle to Work schemes, shopping vouchers, and life assurance.

Find out more about our benefits and perks.

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us daily. We aim to build a better future for all, helping our customers, communities, people, and the planet to thrive. We’re looking for passionate, skilled people committed to making a difference.

Thames Water offers a rewarding, diverse environment where you can make a difference daily. We provide fast-tracked career opportunities, flexible working, and excellent benefits. Whether in call centres or science labs, we seek people with passion and a desire to improve.

If you want a sustainable career making a difference to millions and protecting water resources, we support you every step. Join us to build a better future for our customers, region, and planet.

We are committed to diversity and inclusion, removing barriers to success, and offering support during recruitment. We also offer opportunities to support customers directly, with full training provided.

Disclaimer: Due to high application volume, we may close the advert early. Apply soon to avoid missing out.