Principal Full Stack Engineer (React & AI-Driven) - Remote - Canada

FullStack Labs

• $110K — $130K *
US-AnywhereRemote in Montreal, QC
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of software engineering experience with full-stack applications.
  • Advanced English proficiency required.
  • Bachelor’s degree required.
  • Expertise in React and TypeScript for front-end development.
  • Experience with AI-assisted engineering tools.
  • Leadership in complex technical projects with clear documentation.
  • Strong back-end skills, especially with GraphQL or Ruby on Rails.
  • Mentoring experience and driving technical best practices.

Responsibilities

  • Design and build scalable full-stack applications.
  • Lead technical initiatives across teams and document architectures.
  • Utilize AI tools to enhance engineering workflows.
  • Contribute to mobile development projects, especially with React Native.
  • Implement continuous integration and delivery for applications.
  • Troubleshoot and resolve challenging technical issues.
  • Maintaining a detail-oriented approach to all tasks.

Benefits

  • Remote work flexibility.
  • Work with both startups and established Fortune 500 companies.
  • Continuing education and professional development opportunities.
  • Career growth prospects.
Full Job Description
The Position

What We Are Looking For

  • 8+ years of professional software engineering experience designing and building scalable, full-stack applications.
  • Advanced English is required.
  • Successful completion of a four-year college degree is required.
  • Deep technical expertise in modern front-end development using React and TypeScript.
  • Hands-on proficiency with AI-assisted engineering workflows and agentic AI tools (e.g., Cursor, Claude Code, Copilot) to accelerate delivery.
  • Proven track record of leading complex technical initiatives across multiple teams and writing clear architectural design documents (RFCs, ADRs).
  • Strong background in back-end technologies, with hands-on production experience in GraphQL or Ruby on Rails.
  • Demonstrated experience mentoring senior engineers, driving technical best practices, and evaluating trade-offs for org-wide initiatives.
  • Experience with mobile development (particularly React Native, iOS, or Android) is a strong plus.
  • Ability to work through new and difficult issues and contribute to libraries as needed.
  • Ability to create and maintain continuous integration and delivery of applications.
  • Forensic attention to detail.
  • A positive mindset and a can-do attitude.
  • Experience working on Agile / Scrum teams.
  • Meaningful experience working on large, complex systems.
  • Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon.
  • Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them.


What We Offer

  • Competitive pay.
  • 100% remote work.
  • The ability to work with leading startups and Fortune 500 companies.
  • Continuing education opportunities.
  • Opportunity to grow and expand your career.


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