HHiring Reality
← Mattermost

Staff Full Stack Engineer

Mattermost
Location
Toronto, Ontario, Canada
Posted
25 days ago
Department
Engineering
Salary
$195,001 – $238,965
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 (not just contributing to) 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 the Go backend and React/TypeScript frontend. Your role involves driving architecture, establishing best practices for AI-agentic workflows, and mentoring engineers while ensuring compliance with security and reliability standards. You will collaborate across teams to deliver features that meet the stringent requirements of defense and critical infrastructure sectors.

Things to weigh
  • No specific benefits listed in the posting
  • Role involves working in regulated environments, which may require security clearances
  • Compensation is market-based and varies based on several factors, with a target salary range provided
  • Remote-first culture may appeal to candidates seeking flexibility
Job score3.6/5
Benefits1/5
Freshness4/5
Career value4/5
Role clarity4/5
Pay transparency5/5

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