Technical Sales Engineer/ Lead

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 About the Role We are seeking a highly skilled and motivated Technical-Sales Engineer to join Mattermost as we enter the Japanese market. This is a high-impact, early-stage opportunity requiring a "player-coach" mentality with significant room for ownership, autonomy, and professional growth. As the first technical hire in Japan and the Indo-Pacific region, you will not only lead technical demonstrations but also serve as a strategic partner to our sales team, directly shaping regional growth and ensuring customer success in high-trust environments. Key Responsibilities Strategic Technical Leadership: Lead