Job Summary:

We are looking for an experienced Senior Frontend React Developer to join our growing team in Toronto. This role plays a critical part in building a robust, scalable, and personalized frontend for cutting-edge e-commerce applications using React.js and Next.js. The successful candidate will take ownership of both the design system development and micro-frontend architecture, contributing to a modular, maintainable, and high-performing user experience.

You will work closely with product designers, architects, and backend teams to develop a modern digital experience integrated with personalization platforms and headless CMS tools like Uniform, ContentStack, and CommerceTools.

Key Responsibilities:

Build and maintain scalable and high-performance frontend applications using React, Next.js, JavaScript, and TypeScript.
Develop a comprehensive design system, including reusable UI components, style guides, and clear documentation.
Implement micro-frontend architecture for key e-commerce modules such as product display, checkout, and account management.
Integrate with CMS platforms and personalization engines to deliver tailored user experiences.
Optimize application performance, accessibility, and responsiveness across various devices and browsers.
Set up and manage CI/CD pipelines using GitLab, GitHub Actions, or Jenkins.
Deploy applications efficiently to AWS services, including Lambda and Amplify.
Write and maintain unit, integration, and contract tests using Jest, React Testing Library, and Pact.
Collaborate with cross-functional teams including UI/UX, QA, architecture, and product.
Mentor junior developers and conduct thorough code reviews.
Continuously improve the codebase by adhering to best practices and staying current with frontend trends.

5+ years of frontend development experience with strong expertise in React.js.
Proficient in JavaScript, TypeScript, HTML, and CSS.
Solid experience with Next.js for SSR and SSG.
Knowledge of micro-frontend architectures and modular frontend design.
Hands-on experience with design systems and building reusable UI components.
Experience working with CI/CD pipelines and tools such as GitLab CI/CD, Jenkins, or GitHub Actions.
Skilled in writing and maintaining tests with Jest, React Testing Library, and pact.io.
Experience deploying to AWS Lambda, Amplify, and other serverless environments.
Familiarity with monitoring and logging tools like NewRelic, Datadog, and ELK.
Experience with headless CMS platforms (e.g., ContentStack) and digital experience platforms (e.g., Uniform).
Integration experience with e-commerce platforms like CommerceTools.
Strong understanding of state management, React hooks, and component lifecycles.
Familiarity with GraphQL and RESTful APIs.
Knowledge of accessibility (a11y) standards and best practices.
Comfortable working in Agile/Scrum environments.
AWS Certified Developer – Associate certification is a plus.

Working Conditions:

Type of job: Temporary Contractor – 1 year with the possibility to extend
Work hours: Monday - Friday, 40 hours per week
Location: Toronto, ON