Enterprise Architect

As an Enterprise Architect, you will be responsible for providing cohesive architectural direction across Thames Water’s business and technology landscape.

Working alongside Domain Architects and senior stakeholders, you will ensure
alignment to a unified, value-chain–based enterprise architecture that supports strategic decision-making, regulatory compliance, and long-term digital transformation.

This role acts as a critical link between business strategy, technology direction, and solution delivery, ensuring our architecture enables the safe, reliable, and sustainable delivery of water services to our 16 million customers.

What you’ll be doing as an Enterprise Architect

• Develop and maintain the Enterprise Architecture Vision and Roadmap for the OT domain, ensuring alignment with Thames Water's strategy, regulatory drivers, and digital transformation initiatives.
• Translate strategic business objectives into enterprise-wide architectural principles, standards, and blueprints.
• Partner with business leadership, Product Directors, and Digital teams to shape investment priorities and ensure cohesive architectural outcomes across domains.
• Lead and contribute to architecture governance, including architecture review boards, ensuring consistency, quality, and alignment to enterprise standards.
• Work collaboratively with Domain Architects to manage cross-domain dependencies, integration, and shared capabilities such as data, platforms, cyber security, and infrastructure.
• Define, maintain, and govern the enterprise architecture repository and models.
• Provide thought leadership on emerging technologies, including IoT, digital twins, AI, and cloud platforms, and their application to water utility operations and asset management.
• Support innovation initiatives by assessing enterprise-wide impact, scalability, and long-term value.
• Ensure architectural alignment with sustainability, resilience, and decarbonisation goals.
• Engage with senior business stakeholders, Digital teams, and external partners to ensure a whole-enterprise perspective is reflected in architectural decisions.
• Communicate complex architectural concepts clearly to both technical and non-technical audiences, acting as a trusted advisor to senior management.
• Mentor and support Domain Architects and solution teams in the application of enterprise architecture principles and standards.
• Drive the maturity of architecture practices, frameworks (e.g. TOGAF, SABSA), and tooling across the organisation.
• Champion collaboration and shared ownership of architecture across business and Digital functions.

Base location – Hybrid – Clearwater Court, Reading.
Working pattern – 36 hours Monday to Friday.

What you should bring to the role

• Proven experience in enterprise or domain architecture within asset-intensive industries such as utilities, energy, infrastructure, or transport.
• Strong knowledge of water utility operations, including asset management, capital delivery processes, and operational resilience.
• Experience working in complex, regulated environments with an understanding of regulatory drivers such as Ofwat and DWI.
• Deep understanding of architecture domains — business, information, application, and technology — and how they integrate.
• Experience coordinating or leading multi-domain architecture across large organisations.
• Excellent communication and stakeholder management skills, with the ability to influence at senior levels.
• Hands-on experience applying recognised architecture frameworks such as TOGAF and modelling approaches such as ArchiMate.

Technical experience and skills

• Experience with SCADA environments and the integration of Operational Technology (OT) and IT estates.
• Understanding of OT security, identity and access management, and compliance frameworks such as the NIS Directive and CAF.
• Experience with asset management systems such as SAP ECC/PM, SAP SRP, Asset Investment Manager (AIM), or similar asset lifecycle platforms.
• Familiarity with capital delivery and project controls platforms, including tools such as Primavera.
• Experience with work management platforms used in water utilities, including SAP EAM and Salesforce, and their integration with asset systems.
• Knowledge of asset lifecycle management for treatment works, pumping stations, reservoirs, dams, water mains, sewers, and pipelines.
• Strong knowledge of data architecture, including governance, lineage, interoperability, and integration with BI platforms such as Power BI.
• Experience designing or operating Common Data Environments (CDEs) to support collaboration and a single source of truth for asset and operational data.
• Experience designing secure, resilient, and scalable cloud and hybrid architectures across platforms such as Azure, AWS, or Google Cloud, including associated security controls.

Desirable qualifications and experience

• Experience supporting digital twin initiatives, data strategy development, or large-scale cloud transformation programmes.
• Professional certifications such as TOGAF, ITIL, CEng, or equivalent.
• ArchiMate 3 modelling experience.
• Hands-on experience with architecture modelling tools such as BizzDesign or similar.

What’s in it for you?

• Competitive salary up to £100,000 per annum depending on experience.
• Car allowance - £5,800
• 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

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 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.

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.