As a Senior Cyber Security Engineer , you will play a critical role in delivering Thames Water's cyber strategy, with responsibility for the design, implementation, and ongoing effectiveness of security capabilities across IT and OT environments. You will engineer and maintain the technical capabilities that enable early threat detection, rapid and consistent response, and sustained cyber risk reduction , while translating cyber risk, regulatory, and business demands into practical, measurable, and operationally sustainable security controls . This is a hands on engineering role for individuals who enjoy building resilient security capabilities, integrating platforms and telemetry, and turning strategy, risk, and incident learnings into practical engineering outcomes. The role requires a strong understanding of security engineering concepts, infrastructure technologies, and best practices, along with the ability to collaborate effectively across IT, OT, and security operations to drive continuous improvement. You must be able to obtain Counter Terrorist Check (CTC) Clearance to be eligible for this position. What you'll be doing as a Senior Cyber Security Engineer Collaborate with stakeholders to design, implement and maintain security controls to meet business, compliance, and risk mitigation requirements; ensuring controls are effective, measurable, and operationally sustainable. Implement and maintain detection and response capabilities through SIEM integration with security controls and IT systems, with a focus on reducing time to detect and time to remediate through improved pre incident engineering. Participation in a 24x7 on call support rota, responding to SIEM health alerts and restoring log ingestion where required. Manage use cases, perform data enrichment, and define standardised and automated containment workflows. Develop and manage operational procedures and reporting methodology. Manage and oversee security technology platforms (e.g. SIEM, SOAR, EDR, and email security). Monitor ongoing control performance and coordinate remediation where gaps are found. Automate operation procedures and reporting processes and integrate outputs into risk reporting frameworks. Liaise with IT and OT teams to ensure controls are implemented according to agreed baselines. Align control design with industry standards, regulations, and best practices. (e.g. NIS, ISO27001, GDPR). Support audits, reviews, and assessments of security controls. Identify and implement improvements to control coverage and resilience. Proactively advise on technology, best practices, and delivery models. 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 detection & response engineering 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. Familiarity with SIEM, EDR, email security and 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 cloud and network security technologies. 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 CISSP, 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 Microsoft Certified: Azure Security Engineer Associate, Tenable, or CyberArk. What's in it for you? Competitive salary up to £78,000 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 lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
12/06/2026
Full time
As a Senior Cyber Security Engineer , you will play a critical role in delivering Thames Water's cyber strategy, with responsibility for the design, implementation, and ongoing effectiveness of security capabilities across IT and OT environments. You will engineer and maintain the technical capabilities that enable early threat detection, rapid and consistent response, and sustained cyber risk reduction , while translating cyber risk, regulatory, and business demands into practical, measurable, and operationally sustainable security controls . This is a hands on engineering role for individuals who enjoy building resilient security capabilities, integrating platforms and telemetry, and turning strategy, risk, and incident learnings into practical engineering outcomes. The role requires a strong understanding of security engineering concepts, infrastructure technologies, and best practices, along with the ability to collaborate effectively across IT, OT, and security operations to drive continuous improvement. You must be able to obtain Counter Terrorist Check (CTC) Clearance to be eligible for this position. What you'll be doing as a Senior Cyber Security Engineer Collaborate with stakeholders to design, implement and maintain security controls to meet business, compliance, and risk mitigation requirements; ensuring controls are effective, measurable, and operationally sustainable. Implement and maintain detection and response capabilities through SIEM integration with security controls and IT systems, with a focus on reducing time to detect and time to remediate through improved pre incident engineering. Participation in a 24x7 on call support rota, responding to SIEM health alerts and restoring log ingestion where required. Manage use cases, perform data enrichment, and define standardised and automated containment workflows. Develop and manage operational procedures and reporting methodology. Manage and oversee security technology platforms (e.g. SIEM, SOAR, EDR, and email security). Monitor ongoing control performance and coordinate remediation where gaps are found. Automate operation procedures and reporting processes and integrate outputs into risk reporting frameworks. Liaise with IT and OT teams to ensure controls are implemented according to agreed baselines. Align control design with industry standards, regulations, and best practices. (e.g. NIS, ISO27001, GDPR). Support audits, reviews, and assessments of security controls. Identify and implement improvements to control coverage and resilience. Proactively advise on technology, best practices, and delivery models. 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 detection & response engineering 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. Familiarity with SIEM, EDR, email security and 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 cloud and network security technologies. 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 CISSP, 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 Microsoft Certified: Azure Security Engineer Associate, Tenable, or CyberArk. What's in it for you? Competitive salary up to £78,000 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 lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
As a Control Tester , you will play a key role within the Information Security team at Thames Water, supporting the Control Testing & Assurance Manager in delivering cybersecurity control testing activities across multiple security domains. Working closely with cybersecurity leadership, service owners, and control owners, you will help ensure security controls are effectively designed, implemented, and operating as intended across the organisation. This role contributes to the Cybersecurity Control Testing & Assurance programme by assessing control effectiveness, gathering evidence, and supporting the organisation's wider security and compliance objectives. You will collaborate with stakeholders across the business to ensure testing activities are executed efficiently while maintaining high standards of documentation and reporting. To be considered for this position, candidates must be eligible to obtain security clearance to a minimum of Counter Terrorist Check (CTC) level. What you'll be doing as a Control Tester Assist in the execution of cybersecurity control testing activities in accordance with defined procedures, templates, and standards. Support the development and localisation of test scripts tailored to specific control environments. Gather and document evidence to assess the design and operational effectiveness of cybersecurity controls. Collaborate with control owners and service owners to clarify control objectives and facilitate smooth testing execution. Maintain accurate documentation for each control assessment, including test plans, results, and supporting evidence. Produce clear and consistent reports detailing testing outcomes and observations. Escalate issues, control deficiencies, or delays to the Control Testing & Assurance Manager. Contribute to the continuous improvement of the control testing framework, methodologies, and documentation. Work with key business stakeholders to support the organisation's cybersecurity and compliance objectives. Support the wider cybersecurity assurance programme through structured testing and evidence-based analysis. Base location - Hybrid - Clearwater Court, Reading. Working pattern - 36 hours Monday to Friday. What you should bring to the role Experience in IT audit, IT risk, or cybersecurity control testing within an enterprise environment. Understanding of cybersecurity control frameworks and assurance methodologies. Strong analytical and problem-solving skills with the ability to assess control effectiveness. Experience working collaboratively with technical teams and business stakeholders. Ability to manage tasks independently while contributing to team objectives. Strong written and verbal communication skills, including clear documentation and reporting. Good planning and organisational skills with attention to detail. Technical experience and skills Understanding of cybersecurity domains, including Threat Intelligence, Vulnerability Management, Security Testing, Security Architecture, Infrastructure Protection, Application Security, Identity and Access Management, Incident Investigation & Response, and Cryptography. Familiarity with information security control frameworks such as COBIT or COSO. Ability to gather, analyse, and document evidence related to the design and operational effectiveness of security controls. Experience in maintaining structured documentation, including test plans, assessment results, and reports. Desirable qualifications and experience Experience working in a regulated environment. Experience within the water utility industry or other large, complex critical national infrastructure organisations. Desirable technical skills and qualifications Professional certifications such as CISA, CISSP, CRISC, or ISO 27001 Lead Auditor. What's in it for you? Competitive salary between £40,000 and £55,000 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. Performance-related pay plan directly linked to company performance measures and targets. Access to lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
12/06/2026
Full time
As a Control Tester , you will play a key role within the Information Security team at Thames Water, supporting the Control Testing & Assurance Manager in delivering cybersecurity control testing activities across multiple security domains. Working closely with cybersecurity leadership, service owners, and control owners, you will help ensure security controls are effectively designed, implemented, and operating as intended across the organisation. This role contributes to the Cybersecurity Control Testing & Assurance programme by assessing control effectiveness, gathering evidence, and supporting the organisation's wider security and compliance objectives. You will collaborate with stakeholders across the business to ensure testing activities are executed efficiently while maintaining high standards of documentation and reporting. To be considered for this position, candidates must be eligible to obtain security clearance to a minimum of Counter Terrorist Check (CTC) level. What you'll be doing as a Control Tester Assist in the execution of cybersecurity control testing activities in accordance with defined procedures, templates, and standards. Support the development and localisation of test scripts tailored to specific control environments. Gather and document evidence to assess the design and operational effectiveness of cybersecurity controls. Collaborate with control owners and service owners to clarify control objectives and facilitate smooth testing execution. Maintain accurate documentation for each control assessment, including test plans, results, and supporting evidence. Produce clear and consistent reports detailing testing outcomes and observations. Escalate issues, control deficiencies, or delays to the Control Testing & Assurance Manager. Contribute to the continuous improvement of the control testing framework, methodologies, and documentation. Work with key business stakeholders to support the organisation's cybersecurity and compliance objectives. Support the wider cybersecurity assurance programme through structured testing and evidence-based analysis. Base location - Hybrid - Clearwater Court, Reading. Working pattern - 36 hours Monday to Friday. What you should bring to the role Experience in IT audit, IT risk, or cybersecurity control testing within an enterprise environment. Understanding of cybersecurity control frameworks and assurance methodologies. Strong analytical and problem-solving skills with the ability to assess control effectiveness. Experience working collaboratively with technical teams and business stakeholders. Ability to manage tasks independently while contributing to team objectives. Strong written and verbal communication skills, including clear documentation and reporting. Good planning and organisational skills with attention to detail. Technical experience and skills Understanding of cybersecurity domains, including Threat Intelligence, Vulnerability Management, Security Testing, Security Architecture, Infrastructure Protection, Application Security, Identity and Access Management, Incident Investigation & Response, and Cryptography. Familiarity with information security control frameworks such as COBIT or COSO. Ability to gather, analyse, and document evidence related to the design and operational effectiveness of security controls. Experience in maintaining structured documentation, including test plans, assessment results, and reports. Desirable qualifications and experience Experience working in a regulated environment. Experience within the water utility industry or other large, complex critical national infrastructure organisations. Desirable technical skills and qualifications Professional certifications such as CISA, CISSP, CRISC, or ISO 27001 Lead Auditor. What's in it for you? Competitive salary between £40,000 and £55,000 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. Performance-related pay plan directly linked to company performance measures and targets. Access to lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
As an Operational Technology (OT) Compute System Engineer, you will be responsible for managing and supporting OT-specific enterprise systems and applications. These business-critical systems play a key role in enabling operational technology services for both the end customer and the wider business. This role involves ensuring that all systems under the compute remit remain compliant, secure, and aligned with industry standards. You will contribute to the resolution of infrastructure issues and help deliver new solutions as required by the business. A driving licence is essential for this position. What you'll be doing as a Compute System Engineer Support the ongoing maintenance and lifecycle management of existing OT compute infrastructure, including patching and license management. Work closely with business stakeholders to understand and deliver new technical solutions, including cloud-based technologies, in support of future needs. Act as a key point of contact for incident response, demonstrating strong problem-solving skills and the ability to act quickly under pressure. Assist in the design and implementation of infrastructure changes, including both high-level and low-level technical designs. Ensure domain system security compliance through audits, reviews, and proactive management. Support the delivery of regular updates across the full technology stack, including application, OS, BIOS, and hypervisors. Administer and support a wide range of enterprise technologies, including Active Directory, SCCM, VMware, Symantec Endpoint Protection, Dell OpenManage Enterprise, Canonical patching tools, NTP, PKI/certificates, and hybrid Azure environments. Contribute to the integration and evolution of Industry 4.0 solutions within the OT compute domain. Participate in an out-of-hours on-call rota (following probation and prerequisites) to provide emergency support for critical OT systems. Support and collaborate with other technical teams in delivering infrastructure improvements and new deployments. Stay current with industry best practices and demonstrate the ability to act as a Subject Matter Expert (SME) within the compute domain. Engage in personal development and training to ensure capability across required technologies. You will be required to be a part of our mandatory standby for our 24/7 support in this role. Base location: Hybrid - Clearwater Court, Reading. Working pattern: 36 hours Monday to Friday. What you should bring to the role Higher education qualification (HNC or equivalent experience) in an engineering or IT discipline. Proven experience in maintaining, patching, and supporting infrastructure and enterprise systems. Security clearance to SC level. Familiarity with enterprise application administration, including Active Directory, SCCM, VMware, AV software, and Azure cloud services. Knowledge of IP communications and networking, including LAN and WAN. Understanding of industry-specific SCADA systems, or willingness to learn. Proficient scripting skills using PowerShell or similar. Strong interpersonal and communication skills; confident in dealing with both technical and non-technical stakeholders. Proven decision-making skills and the ability to balance operational, commercial, and customer needs. Understanding of IT and OT delivery approaches. (e.g., ITIL, Agile, Waterfall, Lean). Self-motivated, detail-oriented and able to work under pressure. Desirable qualifications and experience Microsoft Certified Solutions Associate (MCSA) - Server, SQL, SCCM. Microsoft Applied Skills - Administer Active Directory Domain Services. Microsoft Azure Fundamentals and/or Azure Administrator Certification. Experience in scripting and automation using PowerShell. VMCE certification or hands-on experience with Veeam Backup & Replication (or similar). Symantec Endpoint Protection (SEP) administration certification. Prior experience working within the utility industry or a large-scale enterprise environment. (>20,000 devices) Experience with stakeholder analysis and managing relationships across multiple technical and business teams. Security Clearance: CTC (Counter Terrorist Check) clearance is desirable. Where this is not already held, it will be obtained as part of the role. What's in it for you? Competitive salary up to £65,000 per annum, depending on experience. Car allowance - £4,500. Annual Leave - 26 days holiday per year, increasing to 30 with the length of service. (plus bank holidays). Performance-related pay plan directly linked to both company and individual performance measures and targets. Generous Pension Scheme through AON. Access to lots of benefits to help you take care of yourself and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
12/06/2026
Full time
As an Operational Technology (OT) Compute System Engineer, you will be responsible for managing and supporting OT-specific enterprise systems and applications. These business-critical systems play a key role in enabling operational technology services for both the end customer and the wider business. This role involves ensuring that all systems under the compute remit remain compliant, secure, and aligned with industry standards. You will contribute to the resolution of infrastructure issues and help deliver new solutions as required by the business. A driving licence is essential for this position. What you'll be doing as a Compute System Engineer Support the ongoing maintenance and lifecycle management of existing OT compute infrastructure, including patching and license management. Work closely with business stakeholders to understand and deliver new technical solutions, including cloud-based technologies, in support of future needs. Act as a key point of contact for incident response, demonstrating strong problem-solving skills and the ability to act quickly under pressure. Assist in the design and implementation of infrastructure changes, including both high-level and low-level technical designs. Ensure domain system security compliance through audits, reviews, and proactive management. Support the delivery of regular updates across the full technology stack, including application, OS, BIOS, and hypervisors. Administer and support a wide range of enterprise technologies, including Active Directory, SCCM, VMware, Symantec Endpoint Protection, Dell OpenManage Enterprise, Canonical patching tools, NTP, PKI/certificates, and hybrid Azure environments. Contribute to the integration and evolution of Industry 4.0 solutions within the OT compute domain. Participate in an out-of-hours on-call rota (following probation and prerequisites) to provide emergency support for critical OT systems. Support and collaborate with other technical teams in delivering infrastructure improvements and new deployments. Stay current with industry best practices and demonstrate the ability to act as a Subject Matter Expert (SME) within the compute domain. Engage in personal development and training to ensure capability across required technologies. You will be required to be a part of our mandatory standby for our 24/7 support in this role. Base location: Hybrid - Clearwater Court, Reading. Working pattern: 36 hours Monday to Friday. What you should bring to the role Higher education qualification (HNC or equivalent experience) in an engineering or IT discipline. Proven experience in maintaining, patching, and supporting infrastructure and enterprise systems. Security clearance to SC level. Familiarity with enterprise application administration, including Active Directory, SCCM, VMware, AV software, and Azure cloud services. Knowledge of IP communications and networking, including LAN and WAN. Understanding of industry-specific SCADA systems, or willingness to learn. Proficient scripting skills using PowerShell or similar. Strong interpersonal and communication skills; confident in dealing with both technical and non-technical stakeholders. Proven decision-making skills and the ability to balance operational, commercial, and customer needs. Understanding of IT and OT delivery approaches. (e.g., ITIL, Agile, Waterfall, Lean). Self-motivated, detail-oriented and able to work under pressure. Desirable qualifications and experience Microsoft Certified Solutions Associate (MCSA) - Server, SQL, SCCM. Microsoft Applied Skills - Administer Active Directory Domain Services. Microsoft Azure Fundamentals and/or Azure Administrator Certification. Experience in scripting and automation using PowerShell. VMCE certification or hands-on experience with Veeam Backup & Replication (or similar). Symantec Endpoint Protection (SEP) administration certification. Prior experience working within the utility industry or a large-scale enterprise environment. (>20,000 devices) Experience with stakeholder analysis and managing relationships across multiple technical and business teams. Security Clearance: CTC (Counter Terrorist Check) clearance is desirable. Where this is not already held, it will be obtained as part of the role. What's in it for you? Competitive salary up to £65,000 per annum, depending on experience. Car allowance - £4,500. Annual Leave - 26 days holiday per year, increasing to 30 with the length of service. (plus bank holidays). Performance-related pay plan directly linked to both company and individual performance measures and targets. Generous Pension Scheme through AON. Access to lots of benefits to help you take care of yourself and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
We're looking for a Cyber Threat & Vulnerability Analyst to join our Cyber Security team, helping protect the systems that deliver essential water services to millions of customers every day. You'll play a key role in identifying, assessing, and reducing cyber risk across a large and complex technology estate, making sure vulnerabilities are understood, prioritised, and fixed before they can be exploited. It's a hands-on role where you'll work closely with technical teams and business stakeholders to keep our services safe, resilient, and running smoothly. What you'll be doing as a Cyber Threat & Vulnerability Analyst: As a Cyber Threat & Vulnerability Analyst, you'll be responsible for supporting and improving how we identify, assess, and manage cyber vulnerabilities across the organisation. You'll help shape how we reduce cyber risk and strengthen our overall security posture. Support end-to-end vulnerability management across IT and operational technology environments Help shape and improve threat and vulnerability management processes, frameworks, and ways of working Work with technical and business teams to prioritise and remediate vulnerabilities based on risk Investigate new vulnerabilities and recommend clear, practical mitigation actions Support integration of vulnerability scanning tools into existing systems and processes Build and maintain dashboards that show cyber risk, trends, and remediation progress in a clear way Contribute to threat assessments and support proactive threat hunting activities Help ensure alignment with standards such as General Data Protection Regulation, Payment Card Industry Data Security Standard, Network and Information Systems Regulations, and International Organisation for Standardisation 27001 Monitor vulnerability management tools and processes, identifying ways to improve effectiveness and reduce risk Base location: Reading - Clearwater Court Working pattern or hours: 36 hours Monday to Friday, hybrid working Necessary requirements for the role: Must be eligible to obtain Counter Terrorist Check security clearance What you should bring to the role The must-haves (essential criteria) for this opportunity include: Experience supporting vulnerability management, patching, or cyber risk reduction in a complex environment Understanding of cyber security concepts, including vulnerability management and threat assessment approaches Ability to work with technical teams to support remediation of security issues Experience or understanding of security tooling such as vulnerability scanners or similar technologies Ability to communicate technical issues clearly to both technical and non-technical audiences Awareness of how security risks are managed across different technology environments (for example cloud, servers, end-user devices, or operational systems) A relevant cyber security qualification or industry certification such as Certified Information Systems Security Professional, Certified Information Security Manager, or Certified Cloud Security Professional Extra qualities that would be a great fit for our team: Experience working with large enterprise or critical infrastructure environments Familiarity with threat intelligence or threat modelling approaches Experience supporting or improving security processes and governance Exposure to operational technology or legacy infrastructure environments Additional cyber security certifications such as Certified Threat Intelligence Analyst, Certified Vulnerability Assessor, Offensive Security Certified Professional, or similar What's in it for you? Competitive salary up to £65,000 per annum depending on experience Annual Leave - 26 days holiday per year increasing to 30 with the length of service (plus bank holidays) Performance-related pay plan directly linked to company performance measures and targets Generous Pension Scheme through AON Access to lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.
12/06/2026
Full time
We're looking for a Cyber Threat & Vulnerability Analyst to join our Cyber Security team, helping protect the systems that deliver essential water services to millions of customers every day. You'll play a key role in identifying, assessing, and reducing cyber risk across a large and complex technology estate, making sure vulnerabilities are understood, prioritised, and fixed before they can be exploited. It's a hands-on role where you'll work closely with technical teams and business stakeholders to keep our services safe, resilient, and running smoothly. What you'll be doing as a Cyber Threat & Vulnerability Analyst: As a Cyber Threat & Vulnerability Analyst, you'll be responsible for supporting and improving how we identify, assess, and manage cyber vulnerabilities across the organisation. You'll help shape how we reduce cyber risk and strengthen our overall security posture. Support end-to-end vulnerability management across IT and operational technology environments Help shape and improve threat and vulnerability management processes, frameworks, and ways of working Work with technical and business teams to prioritise and remediate vulnerabilities based on risk Investigate new vulnerabilities and recommend clear, practical mitigation actions Support integration of vulnerability scanning tools into existing systems and processes Build and maintain dashboards that show cyber risk, trends, and remediation progress in a clear way Contribute to threat assessments and support proactive threat hunting activities Help ensure alignment with standards such as General Data Protection Regulation, Payment Card Industry Data Security Standard, Network and Information Systems Regulations, and International Organisation for Standardisation 27001 Monitor vulnerability management tools and processes, identifying ways to improve effectiveness and reduce risk Base location: Reading - Clearwater Court Working pattern or hours: 36 hours Monday to Friday, hybrid working Necessary requirements for the role: Must be eligible to obtain Counter Terrorist Check security clearance What you should bring to the role The must-haves (essential criteria) for this opportunity include: Experience supporting vulnerability management, patching, or cyber risk reduction in a complex environment Understanding of cyber security concepts, including vulnerability management and threat assessment approaches Ability to work with technical teams to support remediation of security issues Experience or understanding of security tooling such as vulnerability scanners or similar technologies Ability to communicate technical issues clearly to both technical and non-technical audiences Awareness of how security risks are managed across different technology environments (for example cloud, servers, end-user devices, or operational systems) A relevant cyber security qualification or industry certification such as Certified Information Systems Security Professional, Certified Information Security Manager, or Certified Cloud Security Professional Extra qualities that would be a great fit for our team: Experience working with large enterprise or critical infrastructure environments Familiarity with threat intelligence or threat modelling approaches Experience supporting or improving security processes and governance Exposure to operational technology or legacy infrastructure environments Additional cyber security certifications such as Certified Threat Intelligence Analyst, Certified Vulnerability Assessor, Offensive Security Certified Professional, or similar What's in it for you? Competitive salary up to £65,000 per annum depending on experience Annual Leave - 26 days holiday per year increasing to 30 with the length of service (plus bank holidays) Performance-related pay plan directly linked to company performance measures and targets Generous Pension Scheme through AON Access to lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance. Find out more about our benefits and perks (Please note different T&Cs apply if on secondment) Who are we? We're the UK's largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It's a big job and we've got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come. Learn more about our purpose and values Working at Thames Wate r Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet. Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more. We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else just let us know, we're here to help and support. When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It's also a great opportunity to learn more about our business and meet colleagues. Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.