Senior Full-Stack Engineer - AI-Driven, Remote

Jobicy; United States; Remote; USD 114,000 - 137,000; Full time

Benefits offered by this job

Remote-first culture

Open-source company

AI-forward environment

Job summary

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. We are seeking a Senior Full Stack Engineer to help build and scale Mattermost’s core web platform for teams operating in defense and critical infrastructure sectors.

You will contribute across Go backend and React/TypeScript frontend, building features under security and compliance requirements, while leveraging AI coding agents as a core part of daily workflow.

Qualifications

• Strong full-stack development experience in Go and React.

Responsibilities

• Architect and build full-stack features optimized for scalability and performance across Go, React, TypeScript, PostgreSQL, and Redis.
• Leverage AI coding agents such as Claude Code and Cursor as a core part of your daily workflow while retaining full accountability for correctness, security, and design decisions
• Develop internal tooling and testing infrastructure to speed up the team’s delivery, including agentic workflows and skills that make AI tooling more effective for the broader team
• Own testing strategy across frontend and backend code you ship
• Design and consume REST and WebSocket APIs with solid networking fundamentals
• Maintain the security and compliance standards required by our government and enterprise clients
• Contribute to Mattermost’s open-source codebase

Skills

Go

React

REST APIs

WebSocket

PostgreSQL

AI tooling

Security compliance

Tools

Claude Code

Cursor

Copilot

Job description

Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. We are seeking a Senior Full Stack Engineer to help build and scale Mattermost’s core web platform for teams operating in defense and critical infrastructure sectors.

You will contribute across Go backend and React/TypeScript frontend, building features under security and compliance requirements, while leveraging AI coding agents as a core part of daily workflow.