Full-Stack Developer - IAM Montreal

Maintain

X is the world leading mobile-first workflow management platform for industrial and frontline workers. We are a modern IoT enabled cloud based tool for maintenance, safety, and operations on equipment and facilities. Maintain

X powers operational excellence for 12,000+ businesses including Duracell, Univar Solutions Inc., Titan America, McDonalds, Brenntag, Cintas, Michaels, and Shell. We want Maintain

X to be the go-to work execution platform for manufacturers, across Maintenance, Operations and Safety.

We recently completed a $150 million Series D round, bringing our total funding to $254 million, at a valuation of $2.5 billion.

We are looking for Full Stack Developers to join our IAM (Identity and Access Management) team in the Engineering Organization. This role has openings at Intermediate and Senior level positions.

The Identity team builds the systems that power secure and seamless access across the Maintain

X platform. We design and operate authentication, authorization, and governance services that scale with our enterprise customers and keep user experience frictionless and trusted.

• Develop and enhance IAM features — Implement and maintain authentication, authorization, and user management services across Maintain
  
  X, supporting both frontend and backend systems.
• Contribute to scalable IAM systems — Build and optimize core IAM services that support user authentication, authorization, and access control across Maintain
  
  X’s platform.
• Collaborate across teams — Partner with Product Managers, Designers, and Engineers to design intuitive identity experiences that make enterprise access seamless.
• Deliver high-quality, maintainable code — Write clean, testable, and secure code in C# and Type Script for both backend and frontend components.
• Document your work — Contribute to and maintain clear, self-serve technical documentation to help other teams understand and leverage IAM services.
• Support ongoing improvements — Participate in code reviews, contribute to architectural discussions, and help drive the long-term reliability and performance of our IAM services

You’ll work across our stack (Type Script, React, React Native, Node.js, C#, and Graph

QL) - Web & Mobile

• You’ll work with the team to build, maintain and optimize product features that focus on how our users best collaborate with one another.
• You’ll actively own team features or systems and define their long-term health, while also improving the health of surrounding systems.
• You'll mentor other engineers and deeply review code.
• You’ll improve engineering standards, tooling and processes & bring best practices in planning, developing, testing and deploying industry compliant code.

• You have a minimum of 3 years of professional experience in full-stack software development.
• Strong programming skills in C# and/or Type Script , with experience building production-grade applications.
• Familiarity with React and Node.js , and an understanding of modern web authentication patterns.
• Interest in Identity and Access Management (IAM) — including authentication, authorization, user provisioning, and permissions systems.
• Experience designing and consuming REST or GraphQL
  APIs .
• Proficient at writing understandable, maintainable, and testable code.
• Strong communication and collaboration skills; comfortable working in a cross-functional environment.

• Experience integrating with SSO protocols such as OAuth 2.0, OIDC, or SAML.
• Hands-on experience with Okta , Azure AD , or similar identity providers.
• Exposure to SCIM or other user provisioning standards.
• Understanding of token-based authentication (JWT, PKCE, token exchange).
• Knowledge of encryption standards , SSL/TLS , or public/private key infrastructure .
• Experience with React Native applications.
• Experience with Docker and Kubernetes .
• Experience with observability practices , as well as knowledge of observability tools such as Datadog.
• Familiarity with cloud providers (AWS, Azure, GCP) and service deployment practices.
• Experience with CI/CD pipelines and modern Dev Ops workflows to streamline testing and deployment.

• Competitive salary and meaningful equity…