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Gurjot Singh

@gurjotsingh3

Android developer at Infogain on Expedia Group’s Payments Team, integrating payment methods and modernizing checkout with Jetpack Compose.

India

Message

At Infogain, I work on Expedia Group’s Payments Team, developing global checkout and payment integrations. I integrated Google Pay, Affirm, and NaverPay, and replaced legacy WebView flows with Jetpack Compose components.

Previously, I developed Android apps and features at Magicpin, Gromo, and Upfront Healthcare (Formerly Patientbond Ltd.). My work included building gamification features, shipping an e-learning module, and migrating a legacy Java codebase to Kotlin.

Experience

Work history, roles, and key accomplishments

Current

Mobile Engineer II (Android)

Current

Infogain

Aug 2025 - Present (1 year 1 month)

Leading development in Expedia's Payments Team, responsible for global checkout and payment integrations used by millions of travelers. Integrated major payment methods including Google Pay, Affirm, and NaverPay, and replaced legacy WebView flows with Jetpack Compose components.

Kotlin Jetpack Compose MVVM Hilt Retrofit Coroutines Flow Firebase Git REST APIs Unit Testing

SDE-2 (Android)

Magicpin

Aug 2024 - Jul 2025 (11 months)

Refactored and optimized RecyclerView implementations, improving frame rendering performance by 30%. Designed and developed a feature-rich catalog item page using Jetpack Compose, increasing user interaction by 20%.

Kotlin Jetpack Compose MVVM Hilt RecyclerView Coroutines Flow Custom Views Performance Optimization

Android Developer

Gromo

Oct 2023 - Jul 2024 (9 months)

Played a key role in maintaining and scaling an app with 4.5★ rating and over 1M+ downloads using MVVM architecture, Kotlin, Jetpack Compose, and Hilt. Designed and launched interactive gamification features, boosting user engagement by 25%.

Kotlin Jetpack Compose MVVM Hilt Room Database ExoPlayer Jetpack Navigation Component Coroutines Flow StateFlow LiveData

Android Developer

Upfront Healthcare

Apr 2021 - Oct 2023 (2 years 6 months)

Migrated 100% of legacy Java codebase to Kotlin, increasing code maintainability and reducing crash rates by 40%. Re-architected the application from MVC to MVVM, enabling modular testing with JUnit and Espresso.