Mattermost
Secure collaboration platform for mission-critical teams
Mattermost builds an open-source, self-hosted platform for secure messaging, file sharing, workflow automation, and AI integration. It serves national security, government, defense, and critical infrastructure enterprises requiring data sovereignty and operation in air-gapped or disrupted environments. This enables resilient, zero-trust collaboration accelerating incident response, DevSecOps, and mission operations.
Senior Account Manager
Own and grow a portfolio of commercial accounts across the Americas, driving expansion, renewals, and strategic account planning in a remote-first SaaS environment. Requires 5+ years in quota-carrying account management or customer success roles.
Senior React Native Engineer
Mattermost is seeking a Senior React Native Engineer to own the mobile experience for defense, intelligence, and critical infrastructure teams. This role focuses on mobile infrastructure, networking reliability, and offline-first architecture, building for users with limited connectivity and high security needs.
Forward Deployed Engineer
Deploy and integrate Mattermost in classified defense/intelligence environments. Build plugins, automations, and AI capabilities while working directly with mission operators. Travel ~1 week/month required.
US Defense Engineering Lead
Leads a small full-stack engineering team building mission-critical features for US national security customers on the Mattermost platform. Hands-on with architecture, customer requirements gathering, and AI tool adoption; requires 5+ years engineering experience including 2+ in management, US citizenship, and clearance eligibility.
Senior Account Executive, Navy Sector
Owns Navy territory for enterprise SaaS sales, driving renewals, expansions, and net-new deals ($500K-$5M+) with federal systems integrators. Requires 7+ years SaaS sales, 4+ years Navy/DoD, acquisition expertise, and US clearance eligibility.
Staff Software Engineer, Testing Infrastructure
Leads transformation of test automation infrastructure across server, web, mobile, and desktop platforms. Architects scalable frameworks, integrates AI for test generation and reliability, and establishes quality standards in CI/CD. Requires 8+ years experience and expertise in TypeScript, React, Go, and testing tools.
Lead Site Reliability Engineer
Leads SRE function to architect reliable infrastructure for secure collaboration platform, driving scalability, observability, automation in cloud/hybrid environments. Requires 5+ years SRE/DevOps experience, Kubernetes/Terraform/AWS expertise, and leadership in regulated sectors.
Account Manager - Federal
Manages expansions, renewals, and upsell opportunities in Federal accounts, acting as trusted advisor to customers. Partners with Account Executives on complex deals, maintains CRM hygiene, and engages with Federal procurement and system integrators. Requires 3-5+ years sales experience.