Director of Engineering
WTW · Reigate
The Role
Location: Reigate / Hybrid
Reports to: Mark Mamone
Peer relationships: Head of Architecture, Platform & Engineering Enablement leadership, and Stack Engineering Leaders across ICT
WTW is seeking a technically credible engineering leader to mature and scale engineering capability across ICT. This is not a traditional Director of Engineering role: there are no direct reports. Instead, it is a strategic, deeply technical role focused on improving engineering consistency, software delivery maturity and effectiveness across five autonomous engineering stacks. They should be capable of being hands-on, for the purposes of reinforcing their strategic direction in the space of DevEx and being credible and authentic in the face of technical professionals.
The stacks have been given autonomy to improve delivery velocity. The next phase retains that autonomy while introducing the right level of shared practice, tooling consistency and technical governance. Success depends on technical depth and the ability to build consensus — influencing engineering decisions through credibility and evidence rather than formal authority, and being willing to roll up sleeves and get into technical and code-level problems when it helps move things forward.
Their scope is to ensure that, across 400+ technical professionals dispersed into teams aligned to Products, they are able to reinforce modern best practices — especially in an agentic world — and bring the teams along a journey to a more consistent, modern, AI-native software development lifecycle.
Key Responsibilities
Engineering practice & SDLC maturity: raise the quality and consistency of software design, development, testing and delivery; improve route-to-live, release management, quality gates and CI/CD; reduce manual effort where automation adds value.
Technical governance & consensus: provide constructive, hands-on challenge to engineering and architecture decisions; build alignment across stacks while respecting differing product, commercial and lifecycle needs; support pragmatic technical-debt strategies.
Tooling & developer experience: assess and improve developer experience; standardise and consolidate tooling where it creates clear value (including the move to GitHub as a strategic platform).
AI adoption across the SDLC: drive practical adoption of AI-enabled engineering across development, testing, review, documentation and support, aligned to governance and measurable outcomes.
Engineering metrics & insight: improve visibility of delivery health using frameworks such as DORA and the LinearB pilot; define WTW-specific “lighthouse metrics” that reflect real effectiveness, not activity.
Shared engineering capability: reduce duplication across stacks; promote reusable components, patterns and common engineering services where appropriate.
Technology Environment
The environment uses, or is moving towards: C#, .NET / .NET Core, Microsoft Azure, GitHub (an increasingly strategic platform), Azure DevOps, CI/CD pipelines and automation, and engineering analytics tooling including the LinearB pilot. The candidate should understand these well enough to challenge, guide and directly contribute to engineering direction.
What Success Looks Like
Greater consistency in engineering practices and stronger technical alignment across stacks.
Improved SDLC maturity, better CI/CD and reduced manual effort, through the adoption of AI, automation and other mechanisms
Better developer experience and pragmatic tooling standardisation where it adds value.
Clearer engineering metrics and improved visibility of delivery health.
Increased reuse of engineering capability and greater adoption of AI-enabled practices.
A healthy balance between stack autonomy and organisational consistency.