Compute Engineer

idibu; Greater London; Hybrid; GBP 40,000 - 66,000; Full time

Benefits offered by this job

Car allowance

26 days annual leave

Pension scheme

Job summary

Thames Water is seeking an Operational Technology Compute System Engineer to maintain OT compute infrastructure, patching, licensing, and security compliance across a wide IT/OT stack.

You will work with Active Directory, SCCM, VMware and Azure environments, support incident responses, deliver infrastructure changes, and participate in a 24/7 standby for critical OT systems.

Qualifications

• Experience maintaining, patching and supporting enterprise OT compute infrastructure.
• SC level security clearance or willingness to obtain it.
• Familiarity with enterprise admin tools and Azure cloud services.
• Ability to design and implement infrastructure changes.

Responsibilities

• Maintain OT compute infrastructure and lifecycle management, including patching and licenses.
• Collaborate with stakeholders to deliver new technical solutions, including cloud-based ones.
• Serve as incident response lead and resolve issues quickly under pressure.
• Assist in high/low level infrastructure designs and security audits.
• Support 24/7 standby and on-call rotations post on-boarding.

Skills

Patch management

Incident response

PowerShell scripting

Strong communication

ITIL/Agile/Waterfall

Problem solving under pressure

Education

HNC or equivalent in engineering/IT

Tools

Active Directory

SCCM

VMware

Symantec Endpoint Protection

Dell OpenManage Enterprise

Azure Hybrid environments

NTP/PKI certificates

Job description

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.

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 £66,435 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.

Working at Thames Water

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.