Secure, self-hostable collaboration platform for defense and critical infrastructure
Mattermost builds secure team messaging and workflow software for government, defense and regulated enterprises, deployable on AWS, GCP or Azure via Kubernetes and Terraform. Hiring is accelerating and split evenly between senior engineering and sales, with sales work centered on Navy modernization and federal partner channels. Compliance automation and evidence collection projects show security certification is a real operational load.
Mattermost, founded in 2016 and headquartered in Palo Alto, California, develops a collaboration platform for mission-critical operations. It sells to national security agencies, government bodies and critical infrastructure organizations such as utilities and banks. The product spans web, desktop and mobile, covering channel messaging, file sharing, calls, screen sharing, workflow automation and AI assistance, offered as self-managed enterprise software or single-tenant SaaS. The privately held company has 51-200 employees and hires in the United States, Germany, Canada and Japan.
Mattermost builds with Go, TypeScript, React and React Native with Expo, PostgreSQL and Redis, running on Kubernetes and Docker across AWS, GCP and Azure, with Terraform and Jenkins for infrastructure and CI.
Mattermost targets national security and government organizations, including the U.S. Department of Defense, plus critical infrastructure enterprises such as utilities and banks.
Mattermost is hiring in the United States, Germany, Canada and Japan, mostly at senior level across engineering, sales, security and support.
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Mattermost's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.