Senior Full Stack Engineer
Core
Build and scale Mattermost's core web platform for defense, intelligence, security, and critical infrastructure teams, enabling secure messaging, file sharing, and workflow automation.
Role type
Senior Full Stack Engineer
Builds
Secure collaborative workflow platform (messaging, file sharing, automation) for defense and critical infrastructure sectors
Domain
Defense, intelligence, security, critical infrastructure
Deliverable
production ML models | product features
Required skills
Go, React, TypeScript, PostgreSQL, Redis, REST APIs, WebSocket APIs, AI coding agents (Claude Code, Cursor, Copilot), testing strategy, security compliance
Preferred skills
Distributed systems, high-availability architecture, regulated-environment security, open-source contributions, remote-first team experience, AI agent workflow tools (MCP servers, CI-integrated agents)
Responsibilities
Architect and build scalable full-stack features; leverage AI coding agents for scaffolding, refactors, and test generation; develop internal tooling and testing infrastructure; own testing strategy; design and consume REST/WebSocket APIs; maintain security and compliance standards; contribute to open-source codebase
Seniority
Senior, hands-on IC
