Full-Stack Platform & Infra Engineer

MaintainX; Toronto; Hybrid; CAD 90,000 - 130,000; Full time

Job summary

MaintainX, a leading mobile-first work execution platform, is seeking a senior full-stack engineer to help build scalable shared services. You will design APIs, improve speed and reliability, and collaborate with Product Managers, Designers and engineers to shape the roadmap.

The role offers flexible locations around Canada with a focus on Toronto and Montreal. You will own end‑to‑end features, mentor teammates, and drive tooling and testing improvements while leveraging TypeScript, React and

Qualifications

• 5+ years of professional experience building full-stack web or mobile products.
• Deep hands-on experience with TypeScript, React, and Node.js.
• Experience with mobile-first, responsive, iterative development.
• A track record of writing maintainable, testable code you're comfortable handing off to someone else.
• Strong written and verbal communication: you can explain a technical tradeoff to a designer or a support lead as easily as to another developer.
• Comfort making progress on a problem before the spec is fully settled, adjusting as you learn more.
• Day-to-day use of AI tools in your development workflow, not just occasional experimentation.
• Nice to have: GraphQL, React Native, or SQL database experience.

Responsibilities

• Ship features end to end, from planning through production.
• Partner directly with Product Managers, Designers, and the engineers who build on your work to shape your team's roadmap, not just execute against it.
• Own a feature area or system's long-term health: reliability, performance, and the parts of the codebase nobody notices until they break.
• Review code and mentor other developers on your team.
• Raise the bar on tooling, testing, and delivery practices.

Skills

Full-stack development

Mobile development

Strong communication

AI tooling usage

Tools

TypeScript

React

Node.js

MySQL

GraphQL

React Native

SQL database

CI/CD

Job description

MaintainX, a leading mobile-first work execution platform, is seeking a senior full-stack engineer to help build scalable shared services. You will design APIs, improve speed and reliability, and collaborate with Product Managers, Designers and engineers to shape the roadmap.

The role offers flexible locations around Canada with a focus on Toronto and Montreal. You will own end‑to‑end features, mentor teammates, and drive tooling and testing improvements while leveraging TypeScript, React and