Available for opportunities
FULL STACK
— ENGINEER

Building scalable systems & gamification features impacting 800K+ users at Junglee Games. Passionate about clean code & performance optimization.

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Chirag Kumar
⚡
🚀
About Me

Full Stack Engineer, Systems Thinker

I'm a Software Development Engineer 2 at Junglee Games, where I build scalable systems that power gaming experiences for over 800,000 users.

With 2.5+ years of professional experience, I specialize in developing gamification features, payment integrations, and robust backend architectures. My work has directly contributed to improved user engagement, retention KPIs, and revenue optimization.

I'm passionate about writing clean, maintainable code and staying up-to-date with the latest technologies. When I'm not coding, you'll find me exploring new frameworks or contributing to open-source projects.

Tech I work with:

JavaScriptTypeScriptReact.jsNext.jsNode.jsNest.jsMongoDBAWS
Junglee Games

Junglee Games

Gaming Industry

👥

800K+

Users Impacted

🛠️

20+

RBAC Permissions

💳

Worldpay

Payment Gateway

My Skills

Technologies I Work With

A comprehensive toolkit for building modern, scalable, and performant applications

Other Competencies

Object-Oriented ProgrammingLow Level DesignClean ArchitectureFeature-Driven ArchitectureDesign PatternsDistributed SystemsRBACProblem SolvingData Structures & AlgorithmsSDLCAgile MethodologySystem DesignRESTful ArchitectureMicroservicesCode ReviewGitHub CopilotAgentic AI WorkflowsLighthouse CIPuppeteer
Career Journey

Work Experience

Building scalable solutions and driving impact at every step

Junglee Games logo

SDE 2 — Full Stack Engineer

Junglee Games

January 2026 - Present

Gurugram, India

  • •Architected scalable promo code & discount system end-to-end with reusable React/TypeScript components, configurable validation, stacking logic, and NestJS/AWS backend services enabling rapid campaign experimentation.
  • •Integrated Worldpay payment gateway with responsive UI flows for initiation, failure handling, and reconciliation, improving transaction success rates and reducing drop-offs.
  • •Integrated Meta event tracking across critical funnels (registration, deposits, gameplay), enabling data-driven campaign optimization with measurable ROI improvements.
  • •Spearheaded frontend modernization for 800K+ user platform: migrated to feature-based modular architecture, extracted shared hooks/components/utilities, and leveraged AI-assisted code generation for large-scale refactoring.
React.jsTypeScriptNode.jsNest.jsAWSMongoDBRedis
Junglee Games logo

SDE 1 — Frontend Engineer

Junglee Games

August 2024 - December 2025

Gurugram, India

  • •Built high-performance, accessible React UI features — Spin the Wheel, Slot Machine, Streak Challenge, Drop or Not — enhancing engagement for 800K+ users through gamified real-time interfaces.
  • •Developed reusable, schema-driven TypeScript component libraries with dynamic payload utilities, improving maintainability and developer productivity across multiple teams.
  • •Implemented RBAC (20+ permissions) with time-based UI rules using OOP patterns; optimized complex SQL queries across high-traffic distributed systems, significantly improving query execution efficiency.
  • •Mentored junior developers on architecture guidelines, code review standards, and reusable component design patterns.
React.jsNode.jsTypeScriptMongoDBSQLRedis
Fly Realty logo

Frontend Developer

Fly Realty

January 2024 - July 2024

Remote

  • •Built a production-grade Next.js application with PrimeReact and Redux Saga, delivering responsive interfaces with seamless async state management and cross-browser compatibility.
  • •Automated Lighthouse CI and Puppeteer pipelines to enforce performance and accessibility standards, significantly improving web vitals scores; integrated IAM and a JavaScript bridge for web-to-native interaction.
Next.jsReact.jsRedux SagaPrimeReactTypeScript
My Work

Featured Projects

A collection of projects showcasing my skills in full-stack development

All-Spark — Event Booking Platform screenshot★ Featured
Full Stack

All-Spark — Event Booking Platform

Multi-event ticketing platform with seat selection, Razorpay payments, and an admin dashboard

Next.jsReactTypeScriptPostgreSQL+2
Study Notion screenshot★ Featured
Full Stack

Study Notion

Full-fledged Ed-Tech platform for students, instructors, and admins

React.jsNode.jsMongoDBExpress.js+3
🛒
★ Featured
Full Stack

Shopingooo

Complete e-commerce platform with secure payments

React.jsNode.jsMongoDBExpress.js+2
📖
Desktop App

Book Wagon

Desktop application for online book renting

ASP.netC#MySQLJavaScript+1
Frontend

Weather App

React weather application with 5-day forecast

React.jsJavaScriptCSSWeather API
🏠
Mobile App

Roomner

Android app to find ideal flatmates

JavaFirebaseAndroid Studio
🎬
Full Stack

MovieTime

Movie ticket booking system

PHPJavaScriptSQLiteCSS+1
Background

Education & Achievements

My academic journey and notable accomplishments

🎓Education

Vellore Institute of Technology

Master's of Computer Application (MCA)

Vellore Institute of Technology

Postgraduation

2022 - 2024CGPA: 8.89
Kristu Jayanti College

Bachelor's of Computer Application (BCA)

Kristu Jayanti College

Graduation

2019 - 2022CGPA: 9.04
St. Xavier's School, Bokaro

Higher Secondary School (+2)

St. Xavier's School, Bokaro

Completed

2017 - 2019Class - 12th (ISC)

📜Certifications

AWS Cloud Practitioner EssentialsCore Java TrainingMERN Stack Web Development BootcampIBM Cybersecurity FundamentalsGoogle Ads Apps CertificationProblem Solving (HackerRank)

🏆Achievements

🏆

Top Rookie, Spot & Troubleshooter Awards

Recognized for outstanding performance, quick issue resolution, and impact within the first 6 months at Junglee Games

🥈

IBM Hackathon Runner-up

Runner-up in IBM Hackathon 2020; demonstrated strong problem-solving and rapid prototyping under pressure

💻

Competitive Programming

Solved 800+ problems on LeetCode and GeeksForGeeks; strong in DSA and OOP

📁

10+

Academic Projects

🎖️

8+

Certifications

🏅

2

Awards

💻

3+

Hackathons

Get in Touch

Let's Work Together

Have a project in mind or want to discuss opportunities? I'd love to hear from you!

Connect with me on social media

Open for Opportunities

I'm currently open to freelance projects, consulting work, and full-time opportunities. Let's create something amazing together!