Senior Manager Collaboration and Messaging

About the role

Leidos' Chief Information Office, reporting through the Digital Modernization sector, is seeking a Senior Manager, Collaboration and Messaging with deep expertise in leading both strategy and operations for enterprise collaboration capabilities, including Microsoft 365 services (Exchange, SharePoint, Teams) and Slack. The successful candidate will have a blend of team leadership experience, a strong technical foundation and the ability to drive operational excellence while focusing on modernization, end user experience and business value. Location: This position offers full-time remote work from any US based location. Citizenship: US Citizenship is required.

Responsibilities

• Leadership & Team Management
• Lead, mentor, and develop a high-performing team of engineers and operations professionals supporting enterprise collaboration and messaging platforms and infrastructure.
• Oversee day-to-day operations, engineering, and support functions to ensure high availability, performance, and service reliability.
• Drive accountability, performance management, and career development, including hiring, promotion, and retention.
• Manage team capacity, workload prioritization, and resource planning across concurrent operational and project demands.
• Foster a culture of innovation, collaboration, and continuous improvement, emphasizing user experience and service excellence.
• Technical & Functional
• Direct the full system lifecycle, including design, upgrades, migrations, feature adoption, and platform optimization across Microsoft 365 (GCC-High tenant), Exchange Online and hybrid, Teams, SharePoint Online and on-prem, Slack, Copilot, and email security infrastructure.
• Ensure alignment with enterprise architecture standards, security policies, and regulatory requirements, particularly within a GCC-High environment.
• Ensure platform scalability, performance, and interoperability across enterprise systems.
• Guide the evaluation, selection, and implementation of new technologies to enhance collaboration and messaging capabilities.
• Operational & Financial Accountability
• Own operational performance of collaboration and messaging services, ensuring SLAs, KPIs, and service metrics are defined, monitored, and consistently achieved.
• Establish and maintain ITIL-based service management practices, including incident, problem, change, and release management.
• Manage vendor relationships while maintaining strong financial stewardship, including license management, usage and cost optimization.
• Lead multiple, simultaneous initiatives with significant scope, complexity, and organizational impact.
• Direct response and remediation efforts for high-impact incidents and systemic service issues.
• Business & Stakeholder Engagement
• Partner with Corporate Information Security to support email security, compliance, and risk management initiatives, including technologies such as Proofpoint.
• Influence cross-functional stakeholders on policies, standards, and best practices related to collaboration and messaging.
• Communicate complex technical concepts clearly to a wide range of audiences, from engineering teams to executive leadership and business stakeholders.
• Support enterprise digital transformation initiatives by advancing collaboration capabilities, AI tools and agents, and adoption of new M365 features and tools.

Requirements

• Bachelor's degree in IT, Computer Science, or related field (or equivalent experience).
• 8+ years of relevant experience in collaboration/messaging technologies, with at least 4 years leading teams.
• Strong background leading Microsoft 365 services (Exchange, Teams, SharePoint) and related technologies including email security platforms (e.g. Proofpoint).
• Experience with compliance frameworks, identity and access management (Active Directory & Entra ID), data governance and cybersecurity best practices.
• Experience with Exchange and SharePoint on-prem environments
• Experience with SharePoint workflow/automation tools like Nintex or Power Platform preferred.
• Strong knowledge of M365 Enterprise Licensing and managing services within an E5 (GCC-High preferred).
• Experience with leading merger and acquisition integrations for collaboration tools and data.
• Demonstrated experience in service management, system lifecycle management, and enterprise IT operations.
• Experience in cross-functional stakeholder collaboration and business/customer relationship management in an enterprise environment.
• Expert communicator skilled at bridging technical and business perspectives, effectively engaging both deep technical teams and executive leadership.
• Experience with unified communications technologies including AV, conferencing, video broadcast and meeting room solutions (preferred).
• If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 1

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