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UI / React Developer (ReactJS) with Cypress testing Location: Montreal, Canada Experience: 10+ Years Job Overview We are seeking a highly experienced UI / React Developer with strong expertise in building modern, scalable, and high-performance web applications using ReactJS . The ideal candidate will have extensive experience developing complex user interfaces, interactive data visualizations, and micro frontend architectures while following modern development and testing best practices. Required Skills 10+ years of overall software development experience. Strong hands-on experience with ReactJS and modern JavaScript (ES6+) . Experience building highly interactive and responsive web applications. Expertise in D3.js for complex graph and data visualization . Strong understanding of HTML5, CSS3, and responsive UI development. Experience with Micro Frontend Architecture and component-based application design. Hands-on experience with automated UI testing using Cypress and/or Selenium . Experience consuming REST APIs and integrating backend services. Familiarity with Git, Agile/Scrum methodologies, and CI/CD pipelines. Strong problem-solving, debugging, and communication skills. Preferred Qualifications Experience optimizing UI performance and scalability. Knowledge of reusable component libraries and design systems. Experience working in enterprise-scale application development environments. Exposure to cloud platforms and DevOps practices is a plus.
Here's where they are and how to stand out in your next interview.
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Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.
