Account Manager - Federal

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit www.mattermost.com We are seeking an experienced and results-driven Federal Account Manager (AM) who is collaborative, territory-aligned sales role that operates alongside Federal Account Executives (AEs). AMs independently manage defined Federal expansion and renewal motions while exercising sound judgment on when to partner with AEs on larger or more complex opportunities. Responsibilities Include Expansion Ownership Lead expansions within existing accounts when scope and complexity allow Identify upsell and cross-sell opportunities through customer engagement and usage insights Partner with AEs on expansions that become la