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I'm a Senior React Native Developer with a track record of delivering high-traffic apps. I excel in performance optimization, TypeScript migrations from legacy JS, and handling complex business flows for large-scale apps such as booking, payments, and education platforms. I’m based in Indonesia and open to remote/global roles, with a focus on cross-platform excellence and scalable architecture. Beyond coding, I’ve led mobile teams, driven end-to-end migrations to modern stacks, and built multilingual, robust features (offline access, LMS exams, live class integration) across iOS and Android. I’m passionate about clean architecture, maintainable code, and delivering tangible improvements in conversion and user retention.…I'm a Senior React Native Developer with a track record of delivering high-traffic apps. I excel in performance optimization, TypeScript migrations from legacy JS, and handling complex business flows for large-scale apps such as booking, payments, and education platforms. I’m based in Indonesia and open to remote/global roles, with a focus on cross-platform excellence and scalable architecture. Beyond coding, I’ve led mobile teams, driven end-to-end migrations to modern stacks, and built multilingual, robust features (offline access, LMS exams, live class integration) across iOS and Android. I’m passionate about clean architecture, maintainable code, and delivering tangible improvements in conversion and user retention.

Jonathan Tri Christianto

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I'm a Senior React Native Developer with a track record of delivering high-traffic apps. I excel in performance optimization, TypeScript migrations from legacy JS, and handling complex business flows for large-scale apps such as booking, payments, and education platforms. I’m based in Indonesia and open to remote/global roles, with a focus on cross-platform excellence and scalable architecture. Beyond coding, I’ve led mobile teams, driven end-to-end migrations to modern stacks, and built multilingual, robust features (offline access, LMS exams, live class integration) across iOS and Android. I’m passionate about clean architecture, maintainable code, and delivering tangible improvements in conversion and user retention.…I'm a Senior React Native Developer with a track record of delivering high-traffic apps. I excel in performance optimization, TypeScript migrations from legacy JS, and handling complex business flows for large-scale apps such as booking, payments, and education platforms. I’m based in Indonesia and open to remote/global roles, with a focus on cross-platform excellence and scalable architecture. Beyond coding, I’ve led mobile teams, driven end-to-end migrations to modern stacks, and built multilingual, robust features (offline access, LMS exams, live class integration) across iOS and Android. I’m passionate about clean architecture, maintainable code, and delivering tangible improvements in conversion and user retention.

Available to hire

I’m a Senior React Native Developer with a track record of delivering high-traffic apps. I excel in performance optimization, TypeScript migrations from legacy JS, and handling complex business flows for large-scale apps such as booking, payments, and education platforms. I’m based in Indonesia and open to remote/global roles, with a focus on cross-platform excellence and scalable architecture.

Beyond coding, I’ve led mobile teams, driven end-to-end migrations to modern stacks, and built multilingual, robust features (offline access, LMS exams, live class integration) across iOS and Android. I’m passionate about clean architecture, maintainable code, and delivering tangible improvements in conversion and user retention.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Indonesian

Fluent

English

Intermediate

Work Experience

Mobile Application Developer at PT. Indo Teknologi Cemerlang

July 1, 2024 - Present

Develop and implement new features for mobile apps based on product and business requirements. Identify, troubleshoot, and fix bugs and application errors to ensure stability and reliability. Continuously improve application performance, code quality, and user experience. Collaborated with UI/UX designers and QA engineers to deliver high-quality, well-tested, and user-centered mobile features.

SPV Mobile Developer at PT. Extramarks Education Indonesia (Kelas Pintar)

August 1, 2023 - July 31, 2024

Led and mentored a team of mobile developers to ensure high-quality and timely feature delivery. Conducted technical analysis for new requirements provided by the product team. Reviewed code, enforced best practices, and provided constructive feedback to improve code quality. Coordinated cross-functional meetings with Product, Project Management, and QA teams to align development priorities and resolve issues.

Mobile Application Developer at PT. Extramarks Education Indonesia (Kelas Pintar)

March 1, 2022 - August 31, 2023

Developed mobile applications for B2B and B2C use cases. Built and maintained iOS applications using Swift and Flutter, delivering new features and resolving bugs to improve stability and user experience. Managed app deployment and publishing via App Store Connect and Google Play Console. Worked independently and collaboratively with cross-functional development teams.