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Rajendra Kumar

Career

Professional experience

Where I have worked, what I was responsible for, and what shipped.

Roles

  1. Senior Frontend Developer (React.js, React Native)

    Motorpedia365 Revolution Pvt. Ltd. · Full-time

    Jul 2024 – Jul 2026 · 2 yrs 1 mo

    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.

    Responsibilities

    • Led a team of 5 developers across web, mobile and backend workstreams
    • Ran CI/CD pipelines on Vercel and AWS across 3+ environments
    • Integrated Firebase services: Push Notifications, Analytics, Crashlytics and App Distribution

    Achievements

    • 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
    • React Native
    • React.js
    • Node.js
    • Express.js
    • Redux
    • Firebase
    • AWS
    • Vercel

  2. Front End Developer

    Pixoatic Solutions · Full-time

    Apr 2023 – Apr 2024 · 1 yr 1 mo

    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.

    Responsibilities

    • Architected modular, reusable React.js component libraries
    • Optimised frontend performance with lazy loading, code splitting and bundle size reduction
    • Set up end-to-end automated testing with Jest

    Achievements

    • 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%
    • React.js
    • React Native
    • Redux
    • Jest

  3. Software Engineer

    Protonshub Technologies · Full-time

    May 2022 – Feb 2023 · 10 mos

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

    Responsibilities

    • Worked closely with QA and product teams through structured testing and code reviews
    • Applied code splitting, browser caching and lazy loading to speed up pages

    Achievements

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

  4. Software Developer

    Brainium Information Technologies Pvt. Ltd · Full-time

    Jun 2021 – May 2022 · 1 yr

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

    Responsibilities

    • Enforced robust error handling and performance monitoring
    • Proposed and presented UI enhancements adopted across 3 projects, improving visual consistency across web and mobile

    Achievements

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

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