Director - Program & Delivery Management

Job Description Director, Program and Delivery Management Product Operations
· London, UK

Mimecast is a leading cybersecurity company protecting people, data, and communications from today’s most sophisticated threats. With over 42,000 customers worldwide and 18 billion security events analyzed daily, we pioneer Human Risk Management – combining threat detection, awareness training, and insider risk management into a platform built around the human element of cybersecurity.

The Director, Program and Delivery Management leads the team responsible for how Mimecast’s Product and R&D organization plans, executes, and delivers – from the first articulation of a program’s goals through to customer impact. You will own the discipline of program and delivery management across the organization: setting the standards, systems, and operating model that enable teams to commit with confidence and deliver with consistency.

This function has a strong foundation and is actively evolving. The person who succeeds here combines operational depth with strategic clarity, thrives in ambiguity, and knows how to move an organization without relying on authority.

Lead, develop, and retain a team of Program and Delivery Managers, each embedded as a senior partner to Product and R&D leadership across the portfolio. Set the standard for what great looks like – planning ownership, delivery partnership, systemic problem-solving – and coach your team to perform consistently at that level. Monitor team health – pace, process overhead, retention risk – and address emerging issues before they affect delivery or people;

champion lightweight processes and actively retire ceremony that has become overhead without value. Partner with leadership to evolve the function as Mimecast scales, ensuring the team’s structure, scope, and skills stay ahead of the organization’s needs.

Partner with senior leadership to shape and evolve the planning system – the frameworks, cadences, and standards that govern how work gets prioritized, resourced, sequenced, and committed to across the portfolio. Maintain a portfolio-level view of commitments, capacity, and delivery confidence – giving leadership a reliable picture of what is planned, what is at risk, and what is on track. Act as the escalation point for cross-portfolio dependencies, trade-offs, and resourcing conflicts – bringing recommended solutions, not just problem statements.

Work with leadership to define and maintain the delivery operating rhythm – the cadences, forums, and reporting structures that keep execution visible without adding unnecessary overhead. Ensure your team runs consistent program reviews, proactively manages risk and dependencies, and drives blockers to resolution before they affect commitments. Build and maintain the governance model that drives accountability – visible priorities, clear owners, and timely escalation when delivery is ure programs are managed through their full arc – from requirements gathering and technical design through to customer-facing delivery – with cross-functional dependencies visible and handoffs clearly owned.

Define the AI strategy for program and delivery management – identifying where AI tools can meaningfully improve how programs are planned, tracked, and delivered, and translating that into an actionable roadmap. Keep the team current with evolving AI tools – fostering shared learning and experimentation so best practices spread and the team’s AI fluency grows together. Proactively identify opportunities to leverage AI within the teams and programs you support – reducing manual overhead and increasing velocity in the way we manage delivery.

Own the metrics strategy – defining what gets measured, how, and how delivery-flow data drives decisions at every level. Build and maintain executive-facing reporting that gives leadership a clear, honest view of portfolio health: what is on track, what is at risk, and…