Location: Calgary (Hybrid – 3 Days Onsite) Job Type: Full-Time (FTE) Interview Process: In-person interview required in Calgary or Montreal Job Summary Cogency Inc. is seeking a skilled React JS Frontend Developer to build modern, responsive, and high-performing web applications. The ideal candidate will have strong experience in React, frontend architecture, and UI performance optimization, along with the ability to collaborate effectively in a hybrid work environment. Key Responsibilities Develop and maintain responsive web applications using React JS Build reusable, scalable, and high-quality UI components Implement state management and optimize application performance Integrate frontend applications with RESTful APIs Collaborate with backend developers, designers, and QA teams Participate in code reviews and ensure adherence to best practices Troubleshoot and resolve UI/UX issues and performance bottlenecks Contribute to UI/UX improvements and frontend architecture decisions Maintain clean, well-documented, and testable code Required Skills & Experience 5+ years of experience in frontend development Strong hands-on experience with React JS (components, hooks, lifecycle) Experience with state management (Redux, Context API, or similar) Experience integrating RESTful APIs Strong understanding of responsive design and UI best practices Experience with Git or similar version control systems Excellent problem-solving and communication skills Preferred Skills Experience with TypeScript Familiarity with modern frontend build tools (Webpack, Vite, etc.) Knowledge of testing frameworks (Jest, React Testing Library) Experience with CI/CD pipelines Exposure to cloud platforms (AWS, Azure, or GCP) Work Model Hybrid – 3 days per week onsite in Calgary In-person interview is mandatory in Calgary or Montreal #J-18808-Ljbffr