Senior Enterprise Architect

£58,541 - £72,711 + up to £12,000 Capability Allowance

The ETA team work closely with colleagues across CDIO (including UCD, Solution Architecture, EA Platform Architecture, CDPO and CEPO) as well as with Business, Change Delivery, Commercial and Policy partners. As such, the team provide a unique enterprise lens, enabling collaboration across organisational boundaries and supporting better, earlier decision‑making.

A core part of the team’s ethos is to champion stewardship‑based leadership and new ways of working, encouraging collaboration, transparency and learning across multi‑disciplinary teams. ETA is focused on building sustainable enterprise architecture capability, strengthening how the organisation shapes, sequences and delivers change in support of its long‑term vision and strategic goals.

Job description

As a Senior Enterprise Architect within the Enterprise Transformation Architecture (ETA) team, you will play a key role in shaping HMRC’s enterprise‑level transformation at the earliest stages of change.

Working as part of a dedicated cross‑cutting team, you will collaborate across CDIO, business, delivery and commercial partners to apply capability‑based impacting and enterprise architecture methods to inform strategic choices, articulate options and impacts, and influence decision‑making.

Operating at pace and across organisational boundaries, you will provide a true enterprise lens that connects business strategy, technology direction and delivery planning, helping HMRC to shape coherent, value‑driven change aligned to the IT Strategy and long‑term Future Operating State.

Responsibilities

In this role, you will:

• Embed and drive the development of structured IT Capability-Based Impacting and architectural modelling to identify overlaps, synergies, and common needs across the organisation. Apply these proactively strategically shape and articulate the true value of change and positively influence IT change throughout the E2ECL, in line with HMRC’s IT Strategy.
• Identify and make informed recommendations for mitigating or addressing key enterprise-level constraints, risks, assumptions, and dependencies to inform decision-making and early strategic shaping of IT and Business Roadmaps and scope, aligned to roadmaps or T-Maps.
• Articulate the size, complexity, and cost driver implications of options on early or in-flight enterprise-level IT impacts, considering emerging technologies and aligned to strategic outcomes.
• Present, or support the team in presenting, enterprise-level IT impacts and progress updates in a manner that is tailored to the audience. Actively seek and welcome constructive feedback to drive continuous improvement.
• Provide strategy-based direction and consultation to solution architects on solution designs, technology choices and governance requirements. Providing an early view on deliverability that informs and influences the transition from baseline to target architecture for delivery planning.
• Provide enterprise-level architectural consultancy to improve proactive adherence to enterprise-level guardrails and efficiency of corporate and architectural governance throughout the E2ECL.
• Research various subjects and topics using internal and external resources (e.g. Gartner, AI) and prepare and support the team in preparing for briefings, findings, options & recommendations. This includes supporting Chief and Enterprise Architecture with ad-hoc commissions (both strategic and transitional), via a standardised and repeatable impacting methodology using approved reference models.
• Supporting, and embedding the articulation through Roadmaps or T-Maps that support business readiness and help set business expectations.
• Show commitment to nurturing a collaborative culture, encouraging open dialogue, idea-sharing, and continuous improvement across the team.