Domain Architect - Technology Job London area,Greater London England UK,IT/Tech

Location: Greater London

About the role

The CTO / Infrastructure Domain Architect is a Senior Architecture and people‑leadership role within Digital & Technology (D&T), accountable for shaping, governing and evolving the foundational technology capabilities that underpin all digital, data and business platforms at Haleon.

This role owns the architecture across core infrastructure and technology domains, ensuring they are secure by design, resilient by default, scalable at global scale and operable under stress, while supporting rapid innovation and delivery.

The role leads and develops a capability of Solution Architects across multiple technology domains and is accountable for architectural assurance, guidance and standards, ensuring consistency, confidence and safety across the D&T estate.

Working closely with the CTO/CIO leadership team, Cyber Security, Operations, Platform Owners and other Domain Architects, the role ensures Haleon’s architecture converges on fewer, strategic technology platforms, delivers end‑to‑end outcomes, and meets enterprise expectations for security, resilience, continuity and regulatory compliance.

The role brings a global technology perspective, including awareness of regionally distinct technology ecosystems such as China, to ensure architectures are globally scalable while accommodating legitimate local constraints.

Role purpose

To define, govern and lead secure, resilient and scalable technology architectures, while building a strong architecture capability that enables Haleon to operate safely, reliably and at pace in a complex, global environment.

Key accountabilities

Architecture strategy for foundational D&T and infrastructure capabilities
Security‑by‑design and resilience‑by‑design across the technology estate
Leadership and development of Solution Architects across core technology domains
Definition and enforcement of architecture standards, patterns and guardrails
Architecture assurance, guidance and standards reporting
Cross‑domain alignment with other Domain Architects to ensure coherence
Reduction of risk and complexity through convergence on strategic platforms
Executive‑level advisory on technology risk, resilience and investment trade‑offs

Key responsibilities

Foundational D&T Architecture (Security & Resilience First)

Define domain strategies and target architectures across:
- Integration (API‑first, event‑driven architectures, middleware)
- Network & Hosting (cloud, hybrid, on‑prem, connectivity)
- Data Technology Platforms (data infrastructure, analytics platforms)
- Transactional AI (AI embedded into operational systems)
- Digital Workplace (collaboration, devices, identity, endpoint platforms)
Ensure all foundational architectures are:
- Secure by design
- Resilient by default
- Recoverable, observable and operable under failure scenarios
- Aligned to risk appetite and regulatory expectations

Leadership & Management of Architecture Capability

Provide line management and professional leadership for Solution Architects across:
- Integration
- Network and Hosting
- Data Technology
- Transactional AI
- Digital Workplace
Set clear expectations for architectural quality, security, resilience and consistency.
Build a high‑performing architecture capability trusted by delivery teams and senior leaders.

Security, Resilience & Continuity‑by‑Design

Ensure architectures embed:
- Defence‑in‑depth security principles
- Availability, capacity and performance engineering
- Disaster recovery and business continuity considerations
Work closely with Cyber Security, Risk and Operations to ensure:
- Technology designs meet security and compliance obligations
- Platforms remain resilient during incidents, outages and crises
Ensure resilience is addressed proactively, not retrospectively.

Cross‑Domain Collaboration with Other Domain Architects

Work in close partnership with other Domain Architects (Commercial, Corporate Functions, QSC & R&D, ERP) to:

Enable end‑to‑end value streams
Avoid siloed technical decisions
Promote reuse of shared platforms and patterns

Contribute actively to architecture governance and decision forums.

Strategic Platform Convergence & Simplification

Drive reduction of technology sprawl and architectural debt across D&T.
Steer towards:
- Fewer strategic…