Senior Full Stack Engineer

Mattermost

. Architect and build scalable, high-performance full-stack features across Go, React, TypeScript, PostgreSQL, and Redis .

Posted 10/31/2026full-timeRemote • CanadaSenior💰 CA$162,591 - CA$195,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack development with a focus on Go and React, alongside proficiency in designing and consuming REST and WebSocket APIs. Capable of utilizing AI coding agents for efficient software delivery while maintaining high standards of security and compliance.

Highest-signal resume keywords

Full-Stack DevelopmentGo ProgrammingReact DevelopmentREST API DesignPostgreSQL Schema Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full-Stack DevelopmentGo ProgrammingReact DevelopmentREST API DesignWebSocket API DesignPostgreSQLQuery OptimizationAI Coding AgentsTesting StrategySecurity Compliance

Soft Skills

JudgmentOwnershipAccountability

Tools & Technologies

Claude CodeCursorCopilotRedisCI-Integrated Agents

Certifications & Qualifications

Government Security Clearance Eligibility

Industry Keywords

Open-Source ContributionsDistributed SystemsHigh-Availability Service ArchitectureRegulated-Environment Security RequirementsDefense Products

Tech Stack

Tools & technologies

Distributed SystemsPostgresReactRedisTypeScriptGo

About the role

Key responsibilities & impact

Architect and build scalable, high-performance full-stack features across Go, React, TypeScript, PostgreSQL, and Redis
Use AI coding agents such as Claude Code and Cursor in daily development while retaining accountability for correctness, security, and design
Develop internal tooling and testing infrastructure, including agentic workflows and skills for broader team use
Own testing strategy across frontend and backend code
Design and consume REST and WebSocket APIs
Maintain security and compliance standards required by government and enterprise clients
Contribute to Mattermost’s open-source codebase
Ship full-stack core-platform features within the first 90 days using an AI-forward workflow

Requirements

What you’ll 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
Judgment to assess AI-generated output and take ownership of correctness, security, and design decisions
Ability to ship and own complex software end-to-end without close supervision
Candidates must be legally authorized to work in Canada without current or future sponsorship
Candidates must meet eligibility requirements for possible government security clearance or equivalent designation
Nice to have: experience with distributed systems or high-availability service architecture
Nice to have: familiarity with enterprise or regulated-environment security requirements
Nice to have: background in defense, intelligence, or critical infrastructure products
Nice to have: open-source contributions
Nice to have: experience working on distributed or remote-first teams
Nice to have: experience building tools, skills, or workflows on top of AI coding agents, including MCP servers, agent skills, or CI-integrated agents

Benefits

Comp & perks

Remote-first culture: Work from anywhere with a globally distributed, high-trust team built for autonomy and ownership
AI-forward environment with AI-enabled workflows and agentic development
End-to-end ownership across the full stack
Open source at the core
EEO employer
Interview accommodations available upon request