Anshul Thakur, Developer in Hyderabad, Telangana, India
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Anshul Thakur

Mobile App Developer

Hyderabad, Telangana, India

Toptal member since May 26, 2025

Expertise
AndroidFirebaseReact NativeJavaJavaScriptReduxSocket.IOKotlinTypeScriptXcodeSwift
Bio

Anshul is a skilled mobile app developer with deep expertise in React Native, Kotlin, and Java and a proven track record of building high-quality, stable applications. He built the 13Karat app, scaling it to 100,000+ downloads in just three months, and created a digital rewards system tied to real-time gold value. Blending technical and product thinking skills, Anshul has contributed impactful, user-centric solutions to startups and software firms across finance, banking, and custom IT services.

Portfolio

Bhanix Finance and Investment
React Native, JavaScript, TypeScript, Android, Kotlin/Native, Java, Swift
Yapapp India Private Limited
Android, Kotlin/Native, Kotlin, Java, Firebase, SQLite, Socket.IO
Weboum Technology Private Limited
Android, Kotlin, Java, Firebase

Experience

  • Android Studio - 7 years
  • Android - 7 years
  • Java - 7 years
  • Firebase - 7 years
  • JavaScript - 5 years
  • Redux - 5 years
  • React Native - 5 years
  • TypeScript - 2 years

Preferred Environment

Android Studio, Xcode

The most amazing...

...product I've built is a rewards system offering GOLDe—digital coins linked to real-time gold value, boosting user engagement.

Work Experience

Principal Software Engineer

2020 - PRESENT
Bhanix Finance and Investment
  • Developed and scaled the 13Karat app to 100,000+ downloads within three months, maintaining 99.6% bug-free stability.
  • Achieved a remarkable 2x growth in customer acquisition after playing a key role in developing the spot platform on the Google Pay app.
  • Increased profitability and diversified income sources after introducing a new revenue stream, incorporating features such as Check Credit Score and a new rent payment model using Creditline.
  • Built a unique rewards system offering GOLDe coins, which can be converted into digital gold with real-time value changes.
Technologies: React Native, JavaScript, TypeScript, Android, Kotlin/Native, Java, Swift

Software Engineer

2019 - 2020
Yapapp India Private Limited
  • Led projects involving implementing chat, call, and group call features for up to four members.
  • Engaged in end-to-end app development activities, including client interaction, requirement analysis, and project execution.
  • Implemented a user rewards system with a virtual wallet and virtual currency (At.Cash).
Technologies: Android, Kotlin/Native, Kotlin, Java, Firebase, SQLite, Socket.IO

Android Developer

2018 - 2019
Weboum Technology Private Limited
  • Served as an Android application developer using Java and Kotlin and implementing Model-View-Presenter (MVP) and Model-View-ViewModel (MVVM) architectural patterns.
  • Contributed to building a food delivery app for tracking order status and managing restaurant hours.
  • Engaged in various web and mobile development projects.
Technologies: Android, Kotlin, Java, Firebase

Experience

CASHe App

A fintech mobile application built using React Native. The app incorporates a modular architecture to support scalable development and rapid feature rollout.

Key implementations include buy now, pay later (BNPL), credit line management, real-time credit score checks, and in-app updates and ratings. It features dark mode support, leverages CodePush for over-the-air updates, and integrates seamlessly with 3rd-party APIs for know-your-customer (KYC) verification, payments, and analytics. I focused on app stability, security, and offline handling to ensure a smooth and reliable user experience in dynamic network conditions.

13Karat

Led the architecture and development of the 13Karat P2P investment app, enabling high-return investments through RBI-registered NBFCs. Scaled the platform to handle increasing user demand and ensured 99.9% crash-free sessions with a focus on stability, secure transactions, and a seamless user experience.

Education

2014 - 2018

Bachelor's Degree in Computer Science

Himachal Pradesh Technical University (HPTU) - Sasan, Himachal Pradesh, India

Certifications

MARCH 2025 - PRESENT

JavaScript (Intermediate)

HackerRank

MARCH 2025 - PRESENT

JavaScript (Basic)

HackerRank

MARCH 2025 - PRESENT

Java (Basic)

HackerRank

Skills

Libraries/APIs

Socket.IO

Tools

Android Studio, Xcode

Frameworks

React Native, Redux

Platforms

Firebase, Android, Mobile

Languages

JavaScript, Java, Kotlin, TypeScript, Swift

Storage

SQLite

Other

Kotlin/Native, Mobile App Development, Hybrid Apps

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