Senior Cyber Security Engineer

THAMES WATER UTILITIES LIMITED; United Kingdom; Hybrid; GBP 50,000 - 73,000; Full time

Job summary

Join a leading utilities company as a Senior Cyber Security Engineer, focusing on design and implementation of cyber security solutions. The role offers the chance to work in a hybrid environment, ensuring effective security across IT and OT settings while developing policies and collaborating with stakeholders. You will directly influence the company's security posture, driving compliance and proactive risk management.

Benefits

26 days annual leave, increasing to 30 with service

Generous Pension Scheme

Health and wellbeing benefits

Qualifications

• Experience in Security Engineering, focusing on process and control design.
• Strong understanding of IT and OT systems.
• Good knowledge of identity and access management technologies.

Responsibilities

• Support creation of secure asset builds and system hardening.
• Implement and manage security controls across IT and OT environments.
• Monitor compliance of security solutions.

Skills

Security Engineering

Risk Management

Analytical Skills

Communication

Education

Degree in Cyber Security

Industry certification(s) such as CCSP, CompTIA Security+, or SC-200

Tools

Entra ID

CyberArk

Firewalls

Job description

As a Senior Cyber Security Engineer, you will play a key role in supporting the design, implementation, and maintenance of Cyber Security Engineering solutions, controls, and processes across Thames Water's IT and OT environments. Your responsibilities include supporting cyber security platform administration, enhancing security posture, and ensuring secure deployment of new capabilities aligned with business objectives. This involves collaborating with stakeholders, supporting compliance efforts, and driving proactive cyber risk reduction.

This role requires a deep understanding of security engineering concepts, infrastructure technologies, and best practices. The ideal candidate will have strong communication skills, a solid grasp of IT and OT systems, and a passion for continuous improvement in cybersecurity operations.

What you'll be doing as a Senior Cyber Security Engineer

• Support the creation of secure asset builds and system hardening capabilities across end-user computing and server environments.
• Collaborate with business stakeholders to align cybersecurity engineering strategies and controls with organisational goals.
• Develop and maintain cybersecurity engineering documentation, policies, and procedures.
• Implement and manage security controls across both IT and OT environments.
• Monitor compliance of endpoint and network security solutions, ensuring correct configurations and up-to-date signatures.
• Perform cloud security assessments and produce supporting documentation for secure cloud adoption.
• Evaluate and recommend security technologies, tools, and vendors.
• Investigate vulnerabilities and implement mitigation actions.
• Liaise with technology and business teams regarding patching and vulnerability remediation.
• Develop and maintain cybersecurity engineering dashboards and metrics.
• Provide tooling support and maintenance for Identity & Access Management, Privileged Access Management, Endpoint Security, and Network Security.
• Support compliance with standards and regulations, including GDPR, NIS, and ISO 27001.
• Monitor and optimise security engineering tool performance, implementing proactive solutions.
• Stay current on cybersecurity trends, emerging threats, and new technologies.

Base location -

Hybrid - Clearwater Court, Reading.

Working pattern -

36 hours, Monday to Friday.

What you should bring to the role

• Experience in Security Engineering, with a focus on process and control design in an enterprise environment.
• Strong understanding of both IT and OT systems and infrastructure. Experience in identifying and remediating cyber risks in evolving digital environments.
• Good knowledge of identity and access management technologies (e.g. Entra ID, CyberArk).
• Familiarity with a range of operating systems and security considerations across SaaS, IaaS, end-user computing, and server estate.
• Sound knowledge of network security technologies, including firewalls, IDS/IPS, and NAC.
• Strong analytical, planning, and organisational skills.
• Ability to communicate technical issues clearly to non-technical stakeholders.
• Degree in Cyber Security, Computer Science, Information Technology, Engineering, or a related field.
• Industry certification(s) such as CCSP, CompTIA Security+, or SC-200.

It would be great if you also had

• Previous experience working in a large, complex infrastructure-based or water utility organisation.
• Experience in systems or network administration in IT and/or OT environments.
• Experience leading or mentoring others in delivering cybersecurity outcomes.
• Security engineering vendor or product certifications such as CVA, Microsoft Certified: Azure Security Engineer Associate, Tenable, or CyberArk.

What's in it for you?

• Competitive salary up to £72,600 per annum depending on experience.
• 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.

Who are we?

We're the UK's largest water and wastewater company, serving over 16 million customers daily. We aim to build a better future for all by helping our customers, communities, people, and the planet to thrive. We seek passionate and skilled individuals committed to making a difference.

Learn more about our purpose and values

Working at Thames Water

Thames Water offers a rewarding, diverse workplace where every day presents new opportunities. We provide fast-tracked career growth, flexible working, and excellent benefits.

Whether in call centres or science labs, we look for passionate individuals eager to make a difference. Join us if you want a sustainable career that impacts millions while protecting water resources for future generations.

We promote diversity and inclusion, removing barriers to success. We support applicants throughout the recruitment process and encourage those needing assistance to reach out.

During crises, we rally to support our customers. Join our team as an ambassador, with full training provided, to gain rewarding experience and learn more about our business.

Note: Due to high application volumes, we may close this advert early. Apply promptly to avoid disappointment.