# Enterprise Architect

> CALIO Consulting Group · London, United Kingdom (Hybrid) · Full-time · Posted 2026-09-09

**Workplace:** hybrid

**Department:** MoD SU

## Description

Expected working pattern:

-   4 days per week on-site.
-   1 day per week remote/off-site.
-   Flexibility may be required based on programme and operational needs.

Active DV clearance required

Sole UK National

Comp: (Will share separately)

Permanent position

## Requirements

**Enterprise Architecture Leadership**

-   Develop and maintain the organisation's Enterprise Architecture.
-   Establish current-state, transition-state and target-state architectures.
-   Create and manage enterprise roadmaps aligned to strategic outcomes.
-   Ensure traceability between organisational objectives, capabilities, programmes, projects and technology investments.
-   Act as the senior enterprise architecture authority across the organisation.
-   Provide independent challenge and architectural assurance to programmes and projects.

**Strategic Alignment**

-   Work with senior stakeholders to understand strategic objectives and future capability requirements.
-   Translate business strategy into actionable architectural roadmaps.
-   Ensure programmes and projects support long-term enterprise objectives.
-   Align architectural decisions to Defence and government standards where appropriate.
-   Support Capability Development and DE&S in planning and delivering strategic outcomes.

**Capability Roadmap Integration**

The Enterprise Architect will act as the integrating authority across organisational capability planning.

This includes:

-   Ensuring alignment between business strategy and technology delivery.
-   Aligning enterprise architecture with the **Technology Capability Roadmap** owned by the CTO.
-   Aligning enterprise architecture with the **Data Capability Roadmap** owned by the CDO.
-   Identifying dependencies across data, technology, application and business capabilities.
-   Supporting investment prioritisation and capability sequencing.
-   Ensuring architecture remains coherent across multiple programmes and suppliers.

**Architecture Governance**

-   Establish and maintain enterprise architecture governance processes.
-   Define architecture principles, standards and modelling conventions.
-   Review architecture deliverables from projects and suppliers.
-   Support governance boards with architecture assessments and recommendations.
-   Identify and escalate architecture risks, issues and technical debt.
-   Maintain architectural decision records and assurance documentation.

**Stakeholder Engagement**

-   Engage with HQ stakeholders to capture strategic and operational requirements.
-   Work closely with Programme Managers, Product Managers and Service Owners.
-   Collaborate with DE&S, supplier organisations and internal delivery teams.
-   Provide enterprise architecture guidance across multiple business and technology domains.
-   Act as the focal point for enterprise-wide architectural coordination.

**Architecture Community Leadership**

A significant proportion of architectural activity is currently delivered across separate projects, teams and supplier organisations. Improving visibility and coordination of this activity will be a critical early objective.

The successful candidate will:

-   Establish and lead an Enterprise Architecture Community of Practice.
-   Create a bi-weekly architecture forum bringing together architects across the organisation.
-   Improve visibility of architectural work and decision-making.
-   Encourage collaboration across business, enterprise, data, solution and technical architecture disciplines.
-   Promote knowledge sharing, standardisation and reuse.
-   Reduce duplication and conflicting architectural approaches.
-   Establish effective engagement between embedded architects, programme teams and suppliers.

This is considered a key Day One responsibility.

**Business, Data and Technology Architecture**

**Business Architecture**

-   Develop enterprise capability models.
-   Support operating model development.
-   Capture strategic business requirements and capability needs.
-   Maintain strategic traceability from HQ objectives through to delivery.

**Data Architecture Alignment**

Working alongside Data Architecture teams and the CDO function:

-   Support enterprise data strategies and data platform initiatives.
-   Ensure consistency of information architecture across the organisation.
-   Align architecture activities with the Data Capability Roadmap.
-   Support enterprise data governance and information management objectives.

**Technology Architecture Alignment**

Working alongside Technology Architecture teams and the CTO function:

-   Assess the current technology landscape.
-   Northstar Requirements (ZTA, Agentic AI, Event Driven Architectures)
-   Support technology modernisation planning.
-   Align architecture activities with the HQ Capability Roadmap.
-   Identify technology risks and opportunities.

**Legacy Rationalisation and Transition Planning**

-   Maintain visibility of enterprise applications and technology services.
-   Identify systems approaching end-of-life.
-   Develop migration and transition strategies.
-   Support portfolio rationalisation activities.
-   Ensure replacement capabilities align with target-state architecture.

Attention will be required to:

-   Tactical solutions currently supporting critical operational functions.
-   Building resilience into existing tactical services.
-   Transitioning tactical solutions towards strategic target-state capabilities.

**Identity, Access and Enterprise Integration**

The role will support ongoing work relating to:

-   Identity and Access Management (IAM).
-   User provisioning and lifecycle management.
-   Enterprise integration patterns.
-   Data platform interoperability.
-   Cross-domain information sharing requirements.

The Enterprise Architect will ensure these initiatives align with broader enterprise architecture objectives and existing programmes of work.

**Architecture Frameworks and Tooling**

The role will utilise the following core frameworks and tools:

**Frameworks**

-   NATO Architecture Framework (NAF)
-   ArchiMate (Primary Modelling Notation)
-   MOD and Defence Digital standards as applicable

**Tooling**

-   Sparx Enterprise Architect (Authoritative Architecture Repository)
-   Atlassian Confluence (Prolaborate)
-   Atlassian Jira

The successful candidate should have significant experience creating and managing architecture repositories and models using these tools.

**Essential Experience**

-   Significant experience in Enterprise Architecture within large, complex organisations.
-   Experience operating within Defence, Government or highly regulated environments.
-   Strong understanding of Enterprise Architecture frameworks and methodologies.
-   Experience using ArchiMate to develop enterprise architecture artefacts.
-   Experience of architecture governance and assurance.
-   Experience engaging senior stakeholders and influencing strategic decision-making.
-   Experience coordinating architecture across multiple suppliers and delivery organisations.
-   Experience developing enterprise roadmaps and transition plans.
-   Knowledge of data, application and technology architecture domains.
-   Experience using Sparx Enterprise Architect.

**Desirable Experience**

-   Experience working within MOD, Defence Digital, DE&S or wider Defence organisations.
-   Experience with the NATO Architecture Framework (NAF).
-   Experience establishing architecture communities of practice.
-   Experience supporting large-scale transformation programmes.
-   Knowledge of identity and access management architectures.
-   Experience working alongside CTO and CDO functions.
-   Experience with agile product and portfolio delivery models.

## Apply

[Apply at CALIO Consulting Group](https://apply.workable.com/calio-consulting-group/j/00549D227B/apply)

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