Secure collaboration platform for government and critical infrastructure
Mattermost operates a Go + Kubernetes stack deployed across AWS, GCP, and Azure, serving defense, government, and critical-infrastructure customers with self-hosted and single-tenant SaaS models. The company is scaling engineering capacity (13 open roles) while simultaneously building out observability, application security, and test-automation infrastructure—a pattern typical of orgs moving from feature velocity toward operational maturity in high-assurance environments.
Mattermost builds a channel-based collaboration platform designed for organizations with strict security and sovereignty requirements: the U.S. Department of Defense, government agencies, and critical-infrastructure operators. The product layer includes messaging, file sharing, audio calling, screen share, workflow automation, and AI assistance, with mobile clients on iOS and Android. Deployment is flexible—web, desktop, or single-tenant on-premise—and integrates with identity systems (SAML, OIDC, LDAP) and enterprise tools (Salesforce, Microsoft 365). The company is headquartered in Palo Alto and currently hiring across engineering, sales, and support across the U.S., Canada, Japan, and Germany.
Core: Go, JavaScript, Kubernetes, Terraform, Docker, Git, CI/CD. Cloud: AWS, GCP, Azure. Client: React Native, iOS, Android. Identity/enterprise: SAML, OIDC, LDAP, Salesforce, Microsoft 365.
Test automation frameworks, observability and monitoring, application security tooling, containerized workload deployment, secure delivery platform, and account expansion within existing customers.
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