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I’m a mobile developer with 8+ years of experience, primarily focused on Android and mobile apps, with additional work in cross‑platform frameworks like Kotlin Multiplatform and React Native. Based in Wollongong, Australia, I hold a 491 visa and am open to opportunities without sponsorship. I’ve shipped high-visibility apps for fintech and e-commerce, enjoy building data‑driven features, and thrive collaborating with product, design, and backend teams to deliver robust, privacy-conscious solutions at scale.…I’m a mobile developer with 8+ years of experience, primarily focused on Android and mobile apps, with additional work in cross‑platform frameworks like Kotlin Multiplatform and React Native. Based in Wollongong, Australia, I hold a 491 visa and am open to opportunities without sponsorship. I’ve shipped high-visibility apps for fintech and e-commerce, enjoy building data‑driven features, and thrive collaborating with product, design, and backend teams to deliver robust, privacy-conscious solutions at scale.

Thach Do

App Developer, Web Developer, Full Stack Developer, +2

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I’m a mobile developer with 8+ years of experience, primarily focused on Android and mobile apps, with additional work in cross‑platform frameworks like Kotlin Multiplatform and React Native. Based in Wollongong, Australia, I hold a 491 visa and am open to opportunities without sponsorship. I’ve shipped high-visibility apps for fintech and e-commerce, enjoy building data‑driven features, and thrive collaborating with product, design, and backend teams to deliver robust, privacy-conscious solutions at scale.…I’m a mobile developer with 8+ years of experience, primarily focused on Android and mobile apps, with additional work in cross‑platform frameworks like Kotlin Multiplatform and React Native. Based in Wollongong, Australia, I hold a 491 visa and am open to opportunities without sponsorship. I’ve shipped high-visibility apps for fintech and e-commerce, enjoy building data‑driven features, and thrive collaborating with product, design, and backend teams to deliver robust, privacy-conscious solutions at scale.

Available to hire

I’m a mobile developer with 8+ years of experience, primarily focused on Android and mobile apps, with additional work in cross‑platform frameworks like Kotlin Multiplatform and React Native. Based in Wollongong, Australia, I hold a 491 visa and am open to opportunities without sponsorship.

I’ve shipped high-visibility apps for fintech and e-commerce, enjoy building data‑driven features, and thrive collaborating with product, design, and backend teams to deliver robust, privacy-conscious solutions at scale.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Vietnamese

Fluent

English

Advanced

Work Experience

Android Developer II at Booking.com

August 1, 2025 - April 1, 2026

Architected the technical foundation for the Booking for Business (B4B) Android app. Drove data-driven feature prioritization with iterative A/B testing and safe rollouts via feature flags. Implemented privacy consent and data protection workflows tailored to GDPR markets for the EU launch. Integrated GenAI and ML Kit for automated expense reporting, achieving ~90% accuracy in smart receipt data extraction. Optimized AI agent workflows by defining specialized knowledge contexts and internal tool integrations, accelerating team delivery speed.

Staff Android Developer at OKX

May 1, 2023 - August 1, 2025

Led the development of a high-traffic Web3 DEX marketplace (80K daily visits). Improved trade conversion rates by 2% through performance-oriented development and data-driven work prioritization. Designed a high-performance WebSocket system with dynamic chunking and buffering, doubling the supported payload size per event. Mentored junior and mid-level engineers, fostering a culture of technical excellence.

Senior Android Developer at Gojek

June 1, 2020 - April 1, 2023

Developed and maintained a Point of Sale (POS) app running on Ingenico payment terminals. Led a team of three engineers, overseeing feature delivery, code reviews, and technical mentorship. Collaborated with product and backend teams to ensure reliable offline-capable functionality and smooth terminal integration.

Android Developer at Sea Group (Shopee)

November 1, 2017 - November 1, 2019

Launched localized features for Shopee across 7 international markets. Bridged Android and React Native environments to ensure seamless cross-platform performance and consistent user experiences.