or apply directly on Mattermost's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 76 days Mattermost's roles stay open a median of 81 days
- Reposted
- No
- Salary listed
- Yes 60% of Mattermost's roles list one
- Ghost-job risk at Mattermost
- high 15 stale, 0 reposted of 15 open
- Hiring momentum
- 18 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-23
Measured from postings appearing on and disappearing from Mattermost's own greenhouse board since 2026-08-03. Full hiring picture for Mattermost.
About this role
As a Senior Full Stack Engineer at Mattermost, you will be responsible for building and scaling the core web platform, focusing on security and compliance for clients in defense and critical infrastructure. Your work will involve developing features using Go for the backend and React/TypeScript for the frontend, while leveraging AI coding agents to enhance productivity. You will also own the testing strategy for the code you develop and contribute to the open-source codebase.
- benefits
- 4/5
- freshness
- 1/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Mattermost as an employer.
What you need
- Strong full-stack development experience in Go and React, or a comparable stack
- 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 for scaffolding, refactors, code review, and test generation
- Bias toward shipping and owning complex software end-to-end without close supervision
Nice to have
- Experience with distributed systems or high-availability service architecture
- Familiarity with enterprise or regulated-environment security requirements
- Background in defense, intelligence, or critical infrastructure products
- Open-source contributions
- Experience working on distributed or remote-first teams
What you get
- Remote-first work environment
- Medical, dental, and vision coverage
- Unlimited PTO plus company holidays
- Work from home stipend
- Annual learning and development budget for conferences, certifications, and courses
- Paid parental leave for all parents
Worth weighing
- Target salary range provided, but pay may vary based on location and qualifications
- Role may require obtaining a U.S. government security clearance
- Candidates must meet federal eligibility requirements for access to export-controlled information
Summarised from Mattermost's posting. Read the full original.
Listed by Mattermost on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.
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