Enterprise Platform Architect in Wokingham

About The Role

National Energy System Operator (NESO) is transforming its digital, data and technology landscape to support the delivery of a secure, resilient and net‑zero energy system.

Central to this transformation is a modern enterprise platform ecosystem that enables customer engagement, operational excellence, workforce productivity and data‑driven decision making.

We are seeking a Senior Manager – Enterprise Business Platforms Architect to lead the strategic architecture, governance and evolution of NESO’s core business platform estate.

This role will own the architecture and technology strategy for enterprise platforms including Salesforce, Microsoft Azure business services, Service Now, customer platforms, workflow automation services, digital engagement platforms and associated business applications.

As the architecture leader for business platforms, you will define target architectures, platform roadmaps, integration patterns and governance standards, ensuring platforms remain secure, resilient, scalable and aligned to NESO’s enterprise objectives.

You will lead a team of architects and work closely with platform owners, product managers, business stakeholders, security teams, suppliers and delivery partners to drive technology simplification, modernisation and value realisation.

This role can be based from Warwick / Wokingham and we continue to offer hybrid working.

Travel to other offices is likely to be required, in line with the role’s stakeholder engagements.

National Security Vetting (NSV) clearance (SC) is required for this role. Applicants without the current UK residency prerequisite are invited to apply.

• Key Accountabilities
• Enterprise Business Platform Strategy
• Define and maintain the architecture vision, strategy and target state for NESO’s business platform ecosystem.
• Develop platform roadmaps covering Salesforce, Service Now, Microsoft platform services, customer engagement platforms and future strategic capabilities.
• Ensure business platforms support NESO’s strategic, operational, regulatory and customer outcomes.
• Drive platform rationalisation, simplification and technical debt reduction.
• Architecture Leadership
• Act as Design Authority for business platform architecture.
• Establish reference architectures, standards, principles and reusable patterns.
• Develop and maintain platform architecture roadmaps aligned to enterprise architecture direction and delivery priorities.
• Ensure architectural consistency across customer, corporate and operational platforms.
• Define integration, automation, identity, security and data architecture patterns across the platform estate.
• 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.
• Platform Modernisation & Transformation
• Lead architecture for major transformation initiatives impacting enterprise business platforms.
• Drive adoption of cloud-native capabilities, automation, AI-enabled services and modern platform engineering practices.
• Identify opportunities to improve business processes through platform capabilities.
• Ensure solutions balance innovation, risk, cost and operational resilience.
• Supplier & Commercial Leadership
• Provide technical leadership for strategic suppliers and managed service providers.
• Support procurement, vendor selection and technology investment decisions.
• Ensure platform vendors align with NESO architecture principles and target outcomes.
• Negotiate architectural requirements and future platform direction with suppliers.
• Leadership & People Management
• Lead, coach and develop a team of architects and technical specialists.
• Lead and manage Platform Architecture capability, including line management, work allocation and professional development.
• Foster an architecture community of practice focused on reuse, standardisation and innovation.
• As a senior member of the DD&T directorate, build architecture capability across the organisation.
• Mentor and support architects across Strategy and Architecture to improve architectural consistency and maturity.

Applicants must have the right to work in the UK by the start of employment.

Visa sponsorship may not be available for this role and will be considered in line with business requirements.

About You

Essential

• Significant experience in Enterprise Architecture, Platform Architecture or Digital Transformation leadership roles.
• Proven leadership of enterprise‑scale platforms including Salesforce, Microsoft Azure and Service Now ecosystems.
• Experience defining target-state architectures, platform strategies and technology roadmaps.
• Strong understanding of enterprise integration, API management, identity, security and data management disciplines.
• Experience leading complex transformation programmes and modernisation initiatives whilst striking a pragmatic balance between strategic thinking and delivery priorities.
• Experience operating within multi‑supplier and managed service environments.
• Strong stakeholder management and influencing skills at executive level.
• Experience managing and developing architecture teams.

Desirable

• Experience within Critical National Infrastructure (CNI) or highly regulated environments.
• Knowledge of energy industry technologies and operating models.
• Experience with AI‑enabled platform services and automation technologies.
• Understanding of product-based operating models and platform engineering practices.
• What You’ll Get

A competitive salary of £90,000 – £100,000 (circa, possible flex) dependent on experience and capability.

Benefits include a bonus of up to 20 % of salary for stretch performance, private medical insurance, 28 days annual leave as standard, a competitive contributory pension scheme with a company match of up to 12 % of your contribution.

Benefits

• Flexible Bank Holidays & Holiday Trading
• Additional Birthday Day Off
• Cycle to Work Scheme, Retail & Gym Discounts
• Private Medical Insurance, Critical Illness Insurance & Personal Accident Insurance

About Us

At NESO, we play a vital role in tackling climate change and securing Great Britain's energy future.

We already operate the world's fastest decarbonising electricity system and are working towards our ambition to run it carbon‑free for short periods when electricity is supplied exclusively from renewable sources.

NESO operates independently and transparently, always acting in the best interests of all energy users.

Licensed and regulated by Ofgem, we make impartial decisions that balance sustainability, affordability and security.

In autumn 2024, the Electricity System Operator (ESO) transitioned to become NESO – an independent, expert public corporation with a whole‑system view across electricity, gas and hydrogen.

We encourage talented individuals to join our team as the energy system undergoes an ambitious, exciting, and vital transformation.

NESO recognises the potential of bright and talented individuals and is committed to an inclusive recruitment process.

We are 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.

If you aren’t sure you tick every box, we still want to hear from you.

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