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Rajendra Kumar

Resume

Rajendra Kumar, resume

Senior Front End Developer | React.js, React Native, Next.js & Node.js

Summary

Senior Front End Developer with 5 years of experience building React.js web apps, React Native mobile apps (iOS & Android) and Node.js/Express.js backends. Available for freelance projects and full-time opportunities.

Skills

Languages
JavaScript (ES6+), TypeScript, HTML5, CSS3, SASS/LESS
Frontend
React.js, Next.js, Material-UI, Bootstrap, Tailwind CSS, Responsive design, Code splitting, Lazy loading
Mobile
React Native (iOS & Android), Expo, Apple App Store, Google Play Store, Firebase, Realm DB
Backend
Node.js, Express.js, RESTful API design, GraphQL, JWT/session authentication, Microservices, MySQL
State management & APIs
Redux, Redux Toolkit, Redux Saga/Thunk, Context API, React Query, Zustand, GraphQL, RESTful APIs
Cloud & DevOps
AWS, Google Cloud Platform, Microsoft Azure, Firebase, CI/CD, Jenkins, Vercel, Docker
Tools
Git, Jira, Postman, Figma
Core competencies
Performance optimization, Jest (automated testing), Payment gateways, Admin dashboards, System design

Experience

  • Senior Frontend Developer (React.js, React Native), Motorpedia365 Revolution Pvt. Ltd.

    Jul 2024 – Jul 2026 · 2 yrs 1 mo

    Full-time

    Provided frontend solutions: a React Native dealer app (iOS & Android), React.js web platforms (classifieds marketplace, admin dashboard) and supporting Node.js/Express.js REST APIs, serving 1,000+ active dealers with 99% uptime.

    • Reduced delivery time by 20% through agile sprint planning and structured code reviews
    • Cut deployment time by ~75% with automated, zero-downtime release cycles
    • Reduced data latency by 50% with Firebase integration

  • Front End Developer, Pixoatic Solutions

    Apr 2023 – Apr 2024 · 1 yr 1 mo

    Full-time

    Built a React.js e-commerce platform and a React Native inspection app side by side, shipping 2 production products across web, iOS and Android in a single project cycle.

    • Decreased cross-platform development effort by 35%
    • Reduced codebase complexity by 40% and sped up feature development
    • Improved page load times by 25%
    • Raised test coverage for critical features to 90%

  • Software Engineer, Protonshub Technologies

    May 2022 – Feb 2023 · 10 mos

    Full-time

    Built and maintained React.js web applications supporting 10,000+ monthly active users, with 99.5% uptime.

    • Cut UI-related bug reports by 20%
    • Decreased page load times by 15%
    • Achieved 95% defect-free releases

  • Software Developer, Brainium Information Technologies Pvt. Ltd

    Jun 2021 – May 2022 · 1 yr

    Full-time

    Built React Native mobile applications with unit testing and CI/CD pipelines.

    • Achieved 98% crash-free sessions, including under peak load
    • Lowered crash rate by 60%

Education

  • Bachelor of Computer Applications (BCA)Jaipur National University, Jaipur, Rajasthan2019 – 2022
  • Intermediate (Class XII): Mathematics & ScienceJawahar Navodaya Vidyalaya, Khairthal, Rajasthan2018 – 2019