Senior Program and Delivery Manager

Senior Program and Delivery Manager About Mimecast Mimecast is a leading cybersecurity company that helps organizations protect their people, data, and communications from today’s most sophisticated threats. With over 42,000 customers worldwide, we analyze more than 18 billion security events daily to stop attacks before they cause harm. As pioneers in Human Risk Management, we combine advanced threat detection, awareness training, and insider risk management into a platform that addresses the human element of cybersecurity – because people are both an organization’s greatest asset and its most significant security vulnerability.

About the role

The Program and Delivery Manager is a senior partner to our Product and R&D leadership – someone who brings structure, clarity, and momentum to how we plan, prioritize, and deliver. You will work across Product and R&D to own the roadmap planning system that keeps our goals clearly defined, well-sequenced, and consistently achieved.

This role is about enabling Mimecast’s Product and R&D organization to deliver on its commitments through partnership – creating the shared systems and rhythms that increase team velocity and delivery predictability, and equipping Engineering Managers and Product Managers to own their outcomes fully.

You will also play a strategic role in identifying patterns of friction, cross-functional misalignment, and systemic blockers – bringing structured analysis and solutions to leadership so that teams can move faster and with greater confidence.

AI-First Engineering at Mimecast Mimecast is an AI-First engineering organization. Our teams actively leverage AI-powered development tools to accelerate innovation, improve code quality, and solve complex cybersecurity challenges 're looking for engineering leaders who embrace these technologies or are eager to master them quickly.

Our AI leadership extends beyond how we build to what we build. Our Mihra AI agent delivers 7x faster threat response for customers, and we're recognized as "Agents of Change" in Human Risk Management. Engineers here work at the intersection of cutting-edge AI tooling and AI-powered security products that protect organizations worldwide.

What You’ll Do:

Planning, Roadmap & Priority Ownership Partner with Product and R&D leadership to build and maintain the area’s roadmap – a clear, ranked view of priorities across the portfolio and at the team level – ensuring the right work is resourced, sequenced, and always owned.

Maintain full capacity visibility across your area – who is on which team, what they own, and what can realistically be committed to – so that planning decisions are grounded in reality.

Drive the translation of business goals into sized, sequenced deliverables with clearly owned dates – working in partnership with Product Managers to ensure estimates are grounded, commitments are realistic, and dates are held to once set.

Own the commitment list – the set of outcomes the organization will stand behind – keeping it visible, current, and actively protected across planning cycles.

Execution & Delivery Rhythm Lead a consistent weekly cadence with Product and R&D leaders to review progress, allocate resources where they are most needed, and resolve blockers before they become delays.

Take active ownership of risk and dependency management across your area – identifying risks early, tracking mitigations to closure, coordinating across teams, and escalating decisively when the path to resolution requires it.

Keep priorities visible at the team level so that day-to-day work stays connected to the goals the organization has committed to.

AI Enablement & Team Efficiency Act as an active enabler of AI adoption across Product and R&D – identifying where AI…