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Senior Frontend Developer with 4+ years of experience building and scaling production-grade web applications using React.js, Next.js, and TypeScript. Proven expertise in performance optimization, Core Web Vitals, and SEO-driven frontend architecture, delivering measurable business impact such as 20× bundle size reduction and up to 80% faster load times. Experienced in developing business-critical features including payment integrations, booking workflows, and user-centric dashboards for high-traffic applications serving 100K+ monthly users. Strong advocate of clean architecture, maintainable codebases, and accessibility-first development. Hands-on experience with modern frontend tooling (Webpack, Vite, CI/CD pipelines) and monitoring platforms (Sentry, New Relic, Microsoft Clarity) to ensure application stability and fast issue resolution. Comfortable working in Agile environments, mentoring junior developers, and collaborating cross-functionally to deliver high-quality, scalable user experiences. Currently seeking frontend-focused opportunities where performance, user experience, and engineering excellence are valued.…Senior Frontend Developer with 4+ years of experience building and scaling production-grade web applications using React.js, Next.js, and TypeScript. Proven expertise in performance optimization, Core Web Vitals, and SEO-driven frontend architecture, delivering measurable business impact such as 20× bundle size reduction and up to 80% faster load times. Experienced in developing business-critical features including payment integrations, booking workflows, and user-centric dashboards for high-traffic applications serving 100K+ monthly users. Strong advocate of clean architecture, maintainable codebases, and accessibility-first development. Hands-on experience with modern frontend tooling (Webpack, Vite, CI/CD pipelines) and monitoring platforms (Sentry, New Relic, Microsoft Clarity) to ensure application stability and fast issue resolution. Comfortable working in Agile environments, mentoring junior developers, and collaborating cross-functionally to deliver high-quality, scalable user experiences. Currently seeking frontend-focused opportunities where performance, user experience, and engineering excellence are valued.

Aditya Upadhyay

Front-End Developer, Web Developer, Back-End Developer, +2

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Senior Frontend Developer with 4+ years of experience building and scaling production-grade web applications using React.js, Next.js, and TypeScript. Proven expertise in performance optimization, Core Web Vitals, and SEO-driven frontend architecture, delivering measurable business impact such as 20× bundle size reduction and up to 80% faster load times. Experienced in developing business-critical features including payment integrations, booking workflows, and user-centric dashboards for high-traffic applications serving 100K+ monthly users. Strong advocate of clean architecture, maintainable codebases, and accessibility-first development. Hands-on experience with modern frontend tooling (Webpack, Vite, CI/CD pipelines) and monitoring platforms (Sentry, New Relic, Microsoft Clarity) to ensure application stability and fast issue resolution. Comfortable working in Agile environments, mentoring junior developers, and collaborating cross-functionally to deliver high-quality, scalable user experiences. Currently seeking frontend-focused opportunities where performance, user experience, and engineering excellence are valued.…Senior Frontend Developer with 4+ years of experience building and scaling production-grade web applications using React.js, Next.js, and TypeScript. Proven expertise in performance optimization, Core Web Vitals, and SEO-driven frontend architecture, delivering measurable business impact such as 20× bundle size reduction and up to 80% faster load times. Experienced in developing business-critical features including payment integrations, booking workflows, and user-centric dashboards for high-traffic applications serving 100K+ monthly users. Strong advocate of clean architecture, maintainable codebases, and accessibility-first development. Hands-on experience with modern frontend tooling (Webpack, Vite, CI/CD pipelines) and monitoring platforms (Sentry, New Relic, Microsoft Clarity) to ensure application stability and fast issue resolution. Comfortable working in Agile environments, mentoring junior developers, and collaborating cross-functionally to deliver high-quality, scalable user experiences. Currently seeking frontend-focused opportunities where performance, user experience, and engineering excellence are valued.

Available to hire

Senior Frontend Developer with 4+ years of experience building and scaling production-grade web applications using React.js, Next.js, and TypeScript. Proven expertise in performance optimization, Core Web Vitals, and SEO-driven frontend architecture, delivering measurable business impact such as 20× bundle size reduction and up to 80% faster load times.

Experienced in developing business-critical features including payment integrations, booking workflows, and user-centric dashboards for high-traffic applications serving 100K+ monthly users. Strong advocate of clean architecture, maintainable codebases, and accessibility-first development.

Hands-on experience with modern frontend tooling (Webpack, Vite, CI/CD pipelines) and monitoring platforms (Sentry, New Relic, Microsoft Clarity) to ensure application stability and fast issue resolution. Comfortable working in Agile environments, mentoring junior developers, and collaborating cross-functionally to deliver high-quality, scalable user experiences.

Currently seeking frontend-focused opportunities where performance, user experience, and engineering excellence are valued.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Senior Frontend Developer at Primathon Technology Ventures Pvt. Ltd.

March 1, 2022 - August 2, 2022

Led development and optimization of a large-scale React.js application, focusing on Core Web Vitals and real-world performance metrics. Implemented code-splitting, lazy loading, memoization, and optimized state management to significantly reduce unnecessary re-renders and JavaScript execution time. Built and scaled business-critical React features including tablereservation workflows, secure payment integration, and user profile optimization, supporting 100K+ monthly users and improving booking completion rate by ~25% and checkout success by ~20%. Reduced overall bundle size from 104MB to 12MB and the main bundle from 8MB to under 1MB, achieving 20x faster load times and measurable UX improvements. Mentored junior developers through structured training sessions, resulting in 50% higher code quality metrics and reduced issue escalation rate by 20%. Wrote and executed unit and integration tests in React using Jest and in Angular using Jasmine/Karma to improve test coverage and reliabilit