Senior Manager – Collaboration and Messaging

Leidos

. Lead, mentor, and develop a high-performing team of engineers and operations professionals supporting enterprise collaboration and messaging platforms and infrastructure.

Posted 5/16/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $131,300 - $237,350 per yearWebsite

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

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.
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.
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.
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

What you’ll need

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).

Benefits

Comp & perks

Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Microsoft 365Exchange OnlineTeamsSharePoint Onlineemail securityActive DirectoryEntra IDNintexPower Platformservice management

Soft Skills

leadershipmentoringcommunicationcollaborationinnovationperformance managementresource planningstakeholder engagementproblem-solvinguser experience