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CHIRAG
KUMAR

Full Stack Developer

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

Passionate Developer, Problem Solver

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+ 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

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 DesignProblem SolvingData Structures & AlgorithmsSDLCAgile MethodologySystem DesignRESTful ArchitectureMicroservicesCode Review
Career Journey

Work Experience

Building scalable solutions and driving impact at every step

SDE 2

Junglee Games

January 2026 - Present

Gurugram, India

  • Designed and owned a scalable promo code and discount system, supporting configurable validation rules, stacking logic, expiry windows, and eligibility constraints, enabling rapid experimentation and improving campaign agility and monetization outcomes.
  • Integrated Worldpay payment gateway, handling end-to-end flows including payment initiation, callbacks, reconciliation, failure handling, and retries, contributing to a reduction in payment drop-offs and improved transaction success rates.
  • Integrated Meta (Facebook) event tracking across critical user funnels (registration, deposits, gameplay, and promotional interactions), enabling accurate attribution, data-driven campaign optimization, and measurable improvements in marketing ROI.
Node.jsTypeScriptMongoDBRedisREST APIs

SDE 1

Junglee Games

August 2024 - December 2025

Gurugram, India

  • Implemented RBAC with 20+ permissions, integrated advanced rules (time-based highlighting/pinning, discount periods, eligibility checks), and built schema-driven TypeScript forms with utilities for accurate dynamic payloads.
  • Spearheaded the development of interactive marketing features for a leading online gaming platform, enhancing engagement for 800K+ users through gamified promotions like Spin the Wheel, Slot Machine, Streak Challenge, and quiz-based reward flows.
  • Designed and optimized complex SQL queries, improving efficiency and reducing execution time across high-traffic apps, while contributing to scalable, high-availability backend data architecture.
  • Integrated VIP-tier-based gamification mechanics, mapping rewards and experiences dynamically based on user category and activity, improving personalization and retention KPIs.
  • Built real-time promo progress trackers using API-driven state updates, guiding users through milestone-based journeys.
React.jsNode.jsTypeScriptMongoDBSQLRedis

Frontend Developer

Fly Realty

January 2024 - July 2024

Remote

  • Successfully developed a Next.js dynamic application utilizing PrimeReact and Redux Saga, enabling seamless data management and asynchronous behavior.
  • Integrated identity and access management (IAM) to ensure secure access control and identity management across the application.
  • Delivered impactful landing pages for builder websites, automated Lighthouse CI and Puppeteer testing, enhancing page optimization.
  • Utilized ES6 JavaScript with React.js for developing responsive front-end pages and implemented a JavaScript bridge for seamless interaction between web and native components.
Next.jsReact.jsRedux SagaPrimeReactTypeScript
My Work

Featured Projects

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

📚
★ 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 Award

Awarded for outstanding performance and contribution within the first 6 months at Junglee Games

🥈

IBM Hackathon Runner-up

Secured runner-up position in IBM Hackathon 2020 organized by Kristu Jayanti College

📁

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!