Staff Full Stack Engineer
Mattermost3 months ago
Remote, United StatesStaff+
Base Salary
$173k - $227k/yr
Responsibilities
- Define and drive the technical architecture and roadmap for the core web platform across multiple engineering teams.
- Set organization-wide standards for AI-agentic engineering workflows using tools such as Claude Code and Cursor.
- Lead internal tooling and testing infrastructure strategy for the broader engineering organization.
- Own the frontend and backend testing strategy and quality bar through design reviews and mentorship.
- Drive REST and WebSocket API architecture based on strong networking fundamentals.
- Partner with security, compliance, and product leadership on technical priorities for government and enterprise customers.
- Mentor senior engineers and serve as a technical multiplier across the organization.
- Contribute to and shape Mattermost’s open-source codebase.
- Ship a meaningful full-stack core-platform feature within the first 90 days while identifying high-leverage architectural and process improvements.
Requirements
- Senior full-stack development experience with Go and React or a comparable stack, including ownership of complex systems end-to-end.
- Experience designing and owning distributed systems or highly available service architectures at scale.
- Experience designing and consuming REST and WebSocket APIs with solid networking fundamentals.
- Relational database experience with PostgreSQL, schema design, and query optimization.
- Daily hands-on fluency directing AI coding agents such as Claude Code, Cursor, or Copilot for scaffolding, refactoring, code review, and test generation.
- Ability to influence technical direction across multiple teams without formal authority.
- Experience mentoring senior engineers and raising the technical bar for broader teams.
- Comfort working in regulated or high-compliance environments such as enterprise security, government, or critical infrastructure.
- Prior staff, principal, or technical lead experience is preferred.
- Experience maintaining an open-source project is preferred.
- Familiarity with defense- or government-relevant compliance frameworks such as FedRAMP and ITAR is preferred.
- Experience scaling engineering practices or standards across a growing organization is preferred.
- Experience building tools or workflows around AI coding agents, including MCP servers, agent skills, or CI-integrated agents, is preferred.
- Background in defense, intelligence, or critical infrastructure products is preferred.
- Candidates must meet federal eligibility requirements if a U.S. government security clearance is required and must be eligible to access export-controlled information under applicable export control laws.
Benefits
- Remote-first work from anywhere with a globally distributed team.
- Mission-driven work supporting secure collaboration for defense, government, and critical infrastructure organizations.
- AI-forward engineering environment where agentic development is treated as core craft.
- End-to-end ownership of complex software with accountability for delivered systems.
- Opportunity to contribute to an open-source project and developer community.
Tech Stack
Categories
About Mattermost
Mattermost builds an open-source, enterprise collaboration platform for secure messaging, workflow automation, and DevSecOps, deployed on‑premises or in private clouds. It sells enterprise licenses and a single‑tenant SaaS offering to government, defense, and critical infrastructure organizations, with integrations across web, desktop, and mobile. Founded in 2016 and headquartered in Palo Alto, the privately held company is used by agencies such as the U.S. Department of Defense.