Introduce

Hi from Raj Kumar, Frontend Developer

Frontend Engineer with more than 5 years of hands-on experience in web development, specializing in creating responsive and dynamic user interfaces. Skilled in a range of technologies including React.js, Redux.js, Next.js, Node.js, express.js, Hapi.js, Docker, AWS and more.

5+

Years of
Experience

10+

projects completed

About

Crafting Digital Experiences
with Purpose and Passion

With over five years of hands-on experience as a frontend engineerand full-stack developer, I specialize in building seamless,responsive, and user-focused digital products. My journey has taken me from startups to established industry leaders, where I’ve collaborated with talented teams to deliver impactful solutions for both businesses and consumers.

From optimizing micro-frontend architectures to designingcloud-powered, scalable applications, I’ve embraced challenges that push the boundaries of innovation. My expertise lies in technologies like React.js, Next.js, Node.js, and AWS, enabling me to craft solutions that are not only robust but also future-ready.

Whether it's enhancing user experiences, mentoring new talent, or leading full-stack projects, I thrive on solving problems withcreativity and precision. I’m curious by nature, confident in my skills, and dedicated to constantly evolving—one innovative project at a time.

Resume

Education & Experience

InfosysMarch 2022 - Present

Senior Associate Consultant

  • Spearheading the development of web applications as part of the Travel and Lifestyle Services team using microfrontend technology (One App), improving user load times by 20%.

  • Collaborating with stakeholders to align design strategies with business goals and optimize user experiences.

  • Following Agile methodologies to produce rapid iterations and deliver features that meet client expectations.

  • Contributed to the full SDLC, including analysis, design, implementation, testing, and deployment.

  • Providing Knowledge Transfer (KT) sessions to other engineers, assisting them in completing their stories, and facilitating their onboarding process.

  • Reviewing pull requests (PRs) to ensure coding standards and application quality.

  • Participating in the release of applications to production, coordinating with cross-functional teams to ensure smooth deployment.

Callsmaster Services LLPFeb 2020 – Mar 2022

Software Development Engineer

  • Led the full-stack development of web and mobile applications, including Chrome extensions and RESTful APIs, using React.js,Node.js, Socket.io, and React Native for mobile applications.

  • Dockerized servers and deployed on AWS ECS Fargate and ECR, leveragingauto-scaling, CloudFront, and S3 for CDN assets, Redis for caching, and AWS Cognito for authentication.

  • Used Lambda functions and EventBridge for scheduled jobs and implemented RDS PostgreSQL databases for secure, scalable data storage.

  • Managed CI/CD pipelines with GitHub Actions, improving deployment workflows and ensuring continuous delivery.

  • Designed and implemented a role-based dashboard, improvingapplications and resources management efficiency.

  • Provided Knowledge Transfer (KT) to interns, guiding them indevelopment processes and project onboarding.

Callsmaster Services LLPJuly 2019 – Dec 2019

Project Intern

Developed Coupons and Deals user site and dashboard usingNext.js, React.js, Node.js, Express.js, and MongoDB.

Bhupendra Narayan Mandal University, MadhepuraAug 2016 – Jan 2020

Bachelor of Computer Applications

Projects

My Projects

Consultants Management

An application built on One-app microfrontend paradigm that serves consultant to manage card memmbers bookings, events, trips, relationship managers, worklists etc. An application built on One-app microfrontend paradigm that serves consultant to manage card memmbers bookings, events, trips, relationship managers, worklists etc.

Skills: react js · Redux.js · HTML5 · React.js · TypeScript · Redux Thunk · React Testing Library · JavaScript · Node.js · React Hooks · Hapi · REST APIs · Docker Products · Responsive Web Design · Micro Frontend · Redis · Jest

Super Dashboard for Monitoring/Managing Websites

A role and site based dashboard used to manage and monitor multiple coupon sites, and blog sites, built on MERN stack.

Skills: Express.js · react js · Redux.js · TanStack Query · Amazon S3 · HTML5 · React.js · Amazon Web Services (AWS) · AWS CodePipeline · Redux Thunk · MongoDB · JavaScript · Node.js · React Hooks · mongoose · REST APIs · Responsive Web Design · Amazon EC2

126 Projects

Real Time Chat Application Development

A distributed server built with node js, socket io, redis, and docker to connect multiple users in separate rooms for real time chat and can handle upto millions of user.

Skills: Express.js · Amazon S3 · Amazon Web Services (AWS) · MongoDB · JavaScript · Node.js · Socket.io · mongoose · REST APIs · Docker Products · Redis · Amazon EC2

Gym Management Dashboard

A dashboard to manage multiple branches, employees, trainers, coaches, personal trainings, plans, memberships, invoices, massagers, therapies, users, coupons, biometric attendance etc, built on React, Node, Express js, pg db.

Skills: Express.js · react js · Redux.js · TanStack Query · Amazon S3 · HTML5 · React.js · Amazon Web Services (AWS) · pg · Redux Thunk · JavaScript · Node.js · React Hooks · RTK · REST APIs · Responsive Web Design · Amazon EC2

Coupon and Deals Site

A site that provides coupon and deals for end users and providing cashback on each purchase from this site leveraging the features of Nextjs.

Skills: React js · Redux.js · Amazon S3 · HTML5 · React.js · Amazon Web Services (AWS) · Redux Thunk · MongoDB · Next.js · JavaScript · React Hooks · mongoose · REST APIs · Responsive Web Design · Amazon EC2

Skills

My Skills

HTML

CSS

Tailwind

Javascript

React

Redux

Webpack

React Native

Next JS

Node JS

Express JS

Socket.IO

Docker

Redis

AWS

Awards And Certification

Awards

HackOPUS
  • React
  • Redux
  • Node Js
  • Hapi Js
  • Socket.IO
  • Redis

HackOPUS - A Hackathon conducted by Infosys Client

Insta Award
  • React
  • Redux
  • Node Js
  • Hapi Js
  • Socket.IO
  • Redis

Insta Award - Splendid achievement in wining 1st prize in Hackathon event conducted by client

Insta Award
  • React
  • Redux
  • Node Js
  • Hapi Js

Insta Award - Scaling up quickly in client project and started handling stories idenpendently in short span of time

Insta Award
  • React
  • Redux
  • Node Js
  • Hapi Js

Star of the Month - For contributing well in Client Project, getting appreciation from client Senior Engineer, presenting BTN idea (Server Side Pagination), and many more

Certifications

Infosys Certified React Professional
  • React
  • Redux

Infosys Certified React Professional

Infosys-Certified-Front-End-Web-Developer
  • HTML
  • CSS
  • Javascript

Infosys Certified Front End Web Developer

Infosys-Certified-Google-Associate-Cloud-Engineer

    Infosys Certified Google Associate Cloud Engineer

    Infosys-Certified-Applied-Generative-AI-Professional

      Infosys Certified Applied Generative AI Professional

      Contact

      Let's Work Together!

      rajkumardev075@gmail.com

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