Sayar Samanta

About Sayar Samanta

Senior JavaScript engineer with 7+ years of experience building scalable, high-performance web and mobile applications using React.js, React Native, and the MERN stack.I specialize in modernizing legacy applications, improving performance, and designing reusable frontend architectures that scale. Across multiple product and enterprise environments, I’ve led UI upgrades, migrated applications to React-based stacks, and delivered measurable impact—such as 30–35% performance improvements and increased user engagement.Currently working as a React Developer at Insight Global, where I build and maintain enterprise-grade React applications in collaboration with product, design, and backend teams. I focus on clean, maintainable code, performance optimization, accessibility, and frontend best practices.My background includes:React.js & React Native application developmentJavaScript (ES6+) & TypeScriptMERN stack (Node.js, Express, MongoDB – working knowledge)REST API integration, state management, and performance optimizationCode reviews, mentoring, and Agile developmentI’m actively growing as a full-stack engineer while leveraging my strong frontend and mobile foundation to build end-to-end, user-centric solutions. Open to India, Canada, and Remote opportunities Happy to connect and discuss frontend, React, or full-stack roles

Experience

1. React Developer

   Insight Global

   Feb 2025 — Present · Kolkata, IN

   Developing and scaling enterprise-grade React.js applications using modern JavaScript (ES6+) and TypeScript, serving high-traffic, client-facing platforms.2. Collaborating with product managers, designers, backend (Node.js) engineers, and QA teams in an Agile environment to deliver end-to-end features.3. Building reusable, modular UI components and frontend architecture to improve maintainability and development velocity.4. Optimising application performance through memoization, efficient state management, and code-splitting, resulting in faster load times and smoother UX.5. Integrating RESTful APIs and handling complex data flows with best practices in error handling and security.6. Participating actively in code reviews, improving code quality, accessibility, and adherence to frontend best practices.7. Contributing to frontend technical decisions, documentation, and continuous improvement initiatives.8. Ensuring cross-browser compatibility, responsiveness, and accessibility standards (WCAG) across applications.9. Collaborating on API design discussions involving Node.js / Express-based services, aligning frontend requirements with backend implementation.

Education

• West Bengal University of Technology, Kolkata

  Bachelor’s Degree, Information Technology

  2010 — 2014