<div class="content-intro"><div>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.<br><br></div> <div>To learn more, visit <a href="http://www.mattermost.com/">www.mattermost.com</a></div></div><p data-start="436" data-end="759">Mattermost is seeking a <strong>Senior </strong><strong data-start="460" data-end="495">Technical Account Manager (TAM)</strong> to serve as a trusted technical advisor to our <strong data-start="543" data-end="584">U.S. Federal and enterprise customers</strong>. In this role, you will ensure the successful deployment, integration, and secure operation of the Mattermost platform in <strong data-start="707" data-end="758">mission-critical and high-security environments</strong>.</p> <p data-start="761" data-end="1102">You will combine expertise in <strong data-start="791" data-end="839">infrastructure, cybersecurity, and DevSecOps</strong> with strong customer engagement and project leadership skills. As a strategic partner, you will bridge <strong data-start="943" data-end="987">engineering, product, and customer teams</strong>, driving secure, compliant, and scalable implementations that enable organizations to collaborate with confidence.</p> <h2 data-section-id="18w7bso" data-start="1109" data-end="1132">Key Responsibilities</h2> <h3 data-section-id="1hzi391" data-start="1134" data-end="1181">Customer Success & Secure Solution Delivery</h3> <ul data-start="1182" data-end="1847"> <li data-section-id="j5zcqn" data-start="1182" data-end="1310"> <p data-start="1184" data-end="1310">Lead technical onboarding, configuration, and production deployments for <strong data-start="1257" data-end="1308">strategic enterprise and U.S. Federal customers</strong></p> </li> <li data-section-id="n4mxy5" data-start="1311" data-end="1462"> <p data-start="1313" data-end="1462">Design, validate, and implement <strong data-start="1345" data-end="1379">secure, scalable architectures</strong> for Mattermost across <strong data-start="1402" data-end="1460">cloud, on-premise, hybrid, and air-gapped environments</strong></p> </li> <li data-section-id="cenfks" data-start="1463" data-end="1578"> <p data-start="1465" data-end="1578">Support alignment with security and compliance frameworks such as <strong data-start="1531" data-end="1576">FedRAMP, NIST 800-53, DoD STIG, and SOC 2</strong></p> </li> <li data-section-id="1y4evkc" data-start="1579" data-end="1739"> <p data-start="1581" data-end="1739">Guide customers in integrating Mattermost with <strong data-start="1628" data-end="1697">authentication and identity management systems (SSO, SAML, OAuth)</strong>, DevOps pipelines, and monitoring tools</p> </li> <li data-section-id="1bmenoj" data-start="1740" data-end="1847"> <p data-start="1742" data-end="1847">Provide proactive technical guidance to minimize operational risk and ensure long-term platform success</p> </li> </ul> <h3 data-section-id="i48ypa" data-start="1854" data-end="1889">Technical Leadership & Advocacy</h3> <ul data-start="1890" data-end="2329"> <li data-section-id="1pr0eav" data-start="1890" data-end="1967"> <p data-start="1892" data-end="1967">Serve as the <strong data-start="1905" data-end="1943">primary technical point of contact</strong> for assigned accounts</p> </li> <li data-section-id="l2widm" data-start="1968" data-end="2094"> <p data-start="1970" data-end="2094">Collaborate with <strong data-start="1987" data-end="2024">Product, Engineering, and Support</strong> to resolve complex technical issues and advocate for customer needs</p> </li> <li data-section-id="sr9vpo" data-start="2095" data-end="2225"> <p data-start="2097" data-end="2225">Develop reusable deployment assets including <strong data-start="2142" data-end="2193">scripts, playbooks, and technical documentation</strong> to accelerate implementations</p> </li> <li data-section-id="1oq838e" data-start="2226" data-end="2329"> <p data-start="2228" data-end="2329">Participate in internal reviews to improve <strong data-start="2271" data-end="2329">onboarding methodologies and deployment best practices</strong></p> </li> </ul> <h3 data-section-id="tcv91f" data-start="2336" data-end="2378">Communication & Stakeholder Management</h3> <ul data-start="2379" data-end="2719"> <li data-section-id="1ubgutk" data-start="2379" data-end="2515"> <p data-start="2381" data-end="2515">Present complex technical concepts to <strong data-start="2419" data-end="2464">both executive and technical stakeholders</strong>, tailoring communication to audience and context</p> </li> <li data-section-id="a4ryv7" data-start="2516" data-end="2614"> <p data-start="2518" data-end="2614">Build trusted relationships that drive <strong data-start="25