Staff Software Engineer, Testing Infrastructure

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 Mattermost is seeking a visionary Staff Software Design Engineer (SDE) in Testing Infrastructure to lead a company-wide transformation of test automation and quality engineering . In this highly visible role, you will serve as the technical lead for software testing and quality , partnering directly with Mattermost’s founders, CEO, and engineering leadership to define and execute the next evolution of our testing strategy and infrastructure. As a Staff SDE in Testing Infrastructure , you will define the technical vision and architecture for test infrastructure, frameworks, and processes , enabling every eng