About the Role
National Energy System Operator (NESO) is delivering a major digital and data transformation to support the future operation of Great Britain’s energy system. Platform architecture plays a critical role in enabling this transformation by providing scalable, secure and reusable technology foundations.
NESO is seeking an Enterprise Platform Architect to join the Strategy and Architecture team. This is a senior leadership role at Grade C, responsible for leading the Platform Architecture function, defining platform direction, and ensuring consistency across delivery.
The role combines hands-on architectural leadership with people leadership, working closely with enterprise, solution and data architects to ensure platform capabilities support NESO’s business priorities, technology strategy and delivery programmes.
This role can be based from Wokingham or Warwick and we continue to offer hybrid working from office and home.
Key Accountabilities
Platform Architecture Leadership
* Lead the definition and evolution of NESO’s platform architecture, covering cloud platforms, integration, data platforms and shared services.
* Develop and maintain platform architecture roadmaps aligned to enterprise architecture direction and delivery priorities.
* Act as the design authority for platform architecture, ensuring solutions are scalable, secure and aligned to NESO standards.
* Provide pragmatic architectural leadership to programmes and products using shared platforms.
Architecture Governance and Assurance
* Define and maintain platform standards, patterns and reference architectures.
* Provide architecture assurance through NESO governance forums.
* Ensure platform designs align with enterprise architecture principles, security requirements and regulatory obligations.
* Identify and manage cross-platform risks, dependencies and technical debt.
Leadership and Capability Management
* Lead and manage the Platform Architecture capability, including line management, work allocation and professional development.
* Mentor and support architects across Strategy and Architecture to improve architectural consistency and maturity.
* Contribute as a senior member of the Strategy and Architecture leadership community, shaping ways of working and standards.
Stakeholder Engagement
* Work closely with senior stakeholders across DD&T and delivery teams to translate business needs into platform architecture direction.
* Collaborate with enterprise, solution, security and data architects to ensure coherent end‑to‑end designs.
* Engage with suppliers and partners to ensure alignment with NESO platform standards.
About You
Essential
* Significant experience in platform architecture, including cloud, integration and data platforms.
* Experience operating as a Lead Architect or senior domain architect.
* Strong understanding of enterprise architecture principles and governance.
* Proven experience leading and mentoring architects.
* Ability to balance strategic thinking with delivery pragmatism.
Desirable
* Experience working in large, complex or regulated organisations.
* Exposure to energy, utilities or critical infrastructure environments.
* Experience supporting agile or product-based delivery models.
Don’t meet every single requirement? Studies have shown that women and people of colour are less likely to apply for jobs unless they meet every single qualification. At NESO, we are committed to building a diverse, inclusive, and authentic workplace for everyone. So, if you’re excited about this role but your experience or qualifications don’t match the job description exactly, we encourage you to apply anyway. You might just be the right person for our growing business in this role or another one.
About What You\'ll Get
A competitive salary circa £85,000 - £95,000pa – dependent on experience and capability.
As well as your base salary, you will receive a bonus of up to 20% of your salary for stretch performance, a benefits allowance, 28 days annual leave as standard, and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%.
As we work towards creating a cleaner, greener, and more affordable future for all, we also work towards creating a place for our teammates to belong, with professional and personal growth and positive well-being.
What You Get
* Full support and career-development resources to expand your skills, enhance your expertise, and maximise your potential along your career journey.
* A diverse and inclusive community of belonging, where teammates are empowered to bring ideas to the table.
* Generous Total Rewards Plan – comprising of health, finance and wealth, work/life balance, and career benefits.
About Us
National Energy System Operator’s (NESO) mission is to facilitate the decarbonisation of Great Britain’s energy network and ensure the delivery of reliable, affordable, and clean electricity for consumers. We work with stakeholders across the whole energy industry to plan for future network needs, using a wider adoption of technology and changes in consumer behaviour, as well as ensuring we have the right markets, networks, and frameworks in place, to transform the way we operate tomorrow.
Join us, and let’s energise progress.
Our energy, our future, together.
In Autumn of 2024, the ESO transitioned to National Energy System Operator, or NESO for short. Previously denoted as the Future System Operator (or FSO), the new National Energy System Operator is the independent body responsible for planning Great Britain’s electricity and gas networks and operating the electricity system.
The ESO, including all of its existing roles, are now at the heart of the new National Energy System Operator. As NESO, we will build on our existing roles, capabilities, and ways of working significantly to create an organisation the energy system and its users’ need. Our new capabilities will enable us to look across vectors, including electricity, natural gas and hydrogen, and crucially consider the trade-offs between them.
The organisation is set up as a public corporation with its own Board of independent directors, with complete operational independence from government, the regulator and any and all commercial interest. As was the ESO, NESO will be licenced and regulated by Ofgem through price control agreements and obligated to identify optimal solutions to system operations and planning in the most sustainable, affordable and secure way for all.
More Information
This role closes on 15th February 2026 at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.
We work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.
We\'re committed to building a workforce that represents the communities we serve, and a working environment in which each individual feels valued, respected, fairly treated, and able to reach their full potential.
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