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Randstad Logo Randstad · IT - Software Development

Senior Software Developer - Full Stack

Canada, Toronto 565.97 - 601.35 CAD / Day · Job Posted May 30, 2026
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Job Description

We are seeking a highly skilled Senior Full Stack Software Developer for a 10-month contract in Toronto. This specialized role sits at the intersection of engineering and design, focusing on the development, governance, and maintenance of a robust Design System. You will be responsible for translating complex design intent into reusable, accessible, and performant front-end components while ensuring backend stability and seamless DevOps integration.

Job Responsibility

  • Build and maintain high-quality, reusable UI components using React, Angular, and Next.js
  • Implement and govern Design Tokens, CSS variables, and modular CSS architectures (BEM, Utility-first) to ensure cross-platform UI consistency
  • Ensure every component adheres to WCAG and AODA standards
  • Produce clear, well-structured documentation for component usage, variants, and best practices
  • Design and implement scalable web architectures, including REST APIs, security standards like OAuth, and IAM solutions such as Entra ID
  • Lead the implementation of continuous integration and deployment (CI/CD) pipelines
  • Strategically manage and maintain legacy components and frameworks
  • Resolve complex technical problems arising in packages and libraries
  • Actively participate in design walkthroughs using Figma
  • Identify gaps in the current system and suggest roadmap improvements

Requirements

  • Senior-level experience in React, Angular, and Next.js
  • Proficiency with Figma and a deep understanding of the relationship between design tools and code
  • Strong experience in scalable CSS (BEM, Modular, Utility-first) and managing maintainable styling in large applications
  • Proven experience in database management, RESTful API development, and OAuth/Entra ID security protocols
  • Expert knowledge of WCAG standards and implementing accessible UI
  • Ability to explain complex design and technical decisions clearly to non-technical stakeholders
  • Expert knowledge of structured SDLC methodologies and rapid application development (RAD)
  • Sound judgment in knowing when to standardize vs. when to allow exceptions within a design system

Nice to have

  • Previous experience in the Ontario Public Service (OPS) or Public Sector
  • Hands-on experience working specifically on a Design System project
  • Familiarity with AWS, Drupal, or French language fluency
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