Tarun Gupta


Android Developer | 3+ YOE | Kotlin | MVVM | Firebase | Monetization Systems | Real-Time Apps

Android Developer with 3+ years of experience in designing, developing, and optimizing mobile applications. Worked on gaming apps, including CallBreak Superstar (1Cr+ downloads), improving performance, integrating ad networks, payment gateways, and enhancing user experience.

Skilled in Java, Kotlin, Android SDK, Jetpack Compose, MVVM, and API integrations.

Download Resume
My Specialty

Skills


Some of the significant aptitudes which will assist me with achieving your objectives.

Android Development

90%

Java

85%

Kotlin

80%

Jetpack Compose

70%

Firebase

85%

OOPS

90%

Work Experience


Blacklight Studio Games Oct 2024 - Present

Android Developer

  • Integrated full Google AdMob monetization stack (Banner, Interstitial, Rewarded, App Open, Native) with multi-network mediation including Chartboost, InMobi, Unity Ads, Meta Audience Network, Fyber, AppLovin and Affinity, resulting in ~60% increase in ad revenue
  • Revamped in-game shop using Google Play Billing Library with introduction of virtual currency (Gems) and purchasable power-ups, driving ~4× growth in in-app purchase revenue
  • Developed gameplay power-ups including Card Tracker, Undo Card, and Rebid, improving overall user engagement by ~15%
  • Architected a scalable multi-game real-money gaming app using MVVM architecture in Kotlin, leveraging Firebase Realtime Database, Coroutines and Retrofit
  • Created secure wallet system with deposits/withdrawals, real-time balance sync, and KYC/age verification for compliance readiness
  • Automated CI/CD pipeline with GitHub Actions and strengthened app security by applying OWASP Mobile Security best practices (data encryption, secure storage, code obfuscation, API key protection)

Green Turtle Gaming Technologies Feb 2023 - Sept 2024

Android Developer

  • Developed multiple modules, including a Subscription Model, aimed at driving user engagement, resulting in a 30% increase in in-app purchases
  • Achieved an outstanding increase in crash-free session rate, from 97.3% to an impressive 99.97%.
  • Integrated PhonePe, CashFree, and Decentro payment gateways to streamline deposit processes, resulting in an impressive 80% reduction in transaction errors.
  • Designed and integrated the KYC model into the application, reducing user verification time by 50%.

Redbasil Technologies Jul 2022 - Dec 2022

Software Engineer Intern

  • Contributed to developing the points system within the application using Flutter, leading to a 30% boost in user purchases.
  • Implemented Firebase-trigger email feature using Handlebars and TypeScript, automating contract and document distribution; reduced manual processing time by 40%, increasing operational efficiency and ensuring timely communication.

GitHub Profile Languages Pie Chart


Education


B.Tech (CSE) 2019 - 2023

Dr. A.P.J. Abdul Kalam Technical University (AKTU), Uttar Pradesh

Contact


On the off chance that you might want to connect with me, be it for investigating innovation, business, or to simply say hello, don't hesitate to send me an email at tarunguptaraja.tgr@gmail.com