HHiring Reality
← Mattermost

Staff Full Stack Engineer

Mattermost
Location
United States
Posted
25 days ago
Department
Engineering
Salary
$172,724 – $227,135
What they actually want (must-haves)
  • Senior full-stack development experience in Go and React (or a comparable stack)
  • Proven experience designing and owning distributed systems or high-availability service architecture at scale
  • Experience designing and consuming REST and WebSocket APIs with solid networking fundamentals
  • Relational database experience including PostgreSQL, schema design, and query optimization
  • Hands-on daily fluency directing AI coding agents such as Claude Code, Cursor, or Copilot
  • Demonstrated ability to influence technical direction across multiple teams
Nice to have
  • Prior experience operating as a staff, principal, or technical lead engineer at another company
  • Experience maintaining an open-source project
  • Program-level familiarity with compliance frameworks relevant to defense or government customers
  • Experience helping scale engineering practices or standards across a growing organization
  • Background in defense, intelligence, or critical infrastructure products
What the job really is

As a Staff Full Stack Engineer at Mattermost, you will set the technical direction for the core web platform, focusing on secure collaboration for defense and critical infrastructure sectors. Your role involves driving architecture and strategy across the Go backend and React/TypeScript frontend, mentoring engineers, and ensuring compliance with security standards. You will also lead the adoption of AI coding agents in engineering workflows and partner with various teams to deliver high-quality features.

Things to weigh
  • No specific benefits or perks listed in the posting
  • Role may require obtaining and maintaining a U.S. government security clearance
  • Candidates must meet federal eligibility requirements for access to export-controlled information
Job score4/5
Benefits1/5
Freshness4/5
Career value5/5
Role clarity5/5
Pay transparency5/5

Applying to Mattermost?

See how your résumé matches this role — and tailor it from what actually gets interviews.