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I'm a Mobile Developer with 4+ years of experience building and scaling iOS and Android applications using React Native and Flutter. I have delivered 10 production-ready apps published on the App Store and Google Play Store, serving 15,000+ users with a 99% crash-free rate. I focus on clean architecture, performance optimization, and long-term maintainability. I collaborate closely with designers and product teams to translate business requirements into intuitive user experiences, while ensuring code quality, scalability, and smooth feature evolution across healthcare, dating, EV, and lifestyle platforms.…I'm a Mobile Developer with 4+ years of experience building and scaling iOS and Android applications using React Native and Flutter. I have delivered 10 production-ready apps published on the App Store and Google Play Store, serving 15,000+ users with a 99% crash-free rate. I focus on clean architecture, performance optimization, and long-term maintainability. I collaborate closely with designers and product teams to translate business requirements into intuitive user experiences, while ensuring code quality, scalability, and smooth feature evolution across healthcare, dating, EV, and lifestyle platforms.

Haris Saifudin

App Developer, Web Developer, Front-End Developer

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I'm a Mobile Developer with 4+ years of experience building and scaling iOS and Android applications using React Native and Flutter. I have delivered 10 production-ready apps published on the App Store and Google Play Store, serving 15,000+ users with a 99% crash-free rate. I focus on clean architecture, performance optimization, and long-term maintainability. I collaborate closely with designers and product teams to translate business requirements into intuitive user experiences, while ensuring code quality, scalability, and smooth feature evolution across healthcare, dating, EV, and lifestyle platforms.…I'm a Mobile Developer with 4+ years of experience building and scaling iOS and Android applications using React Native and Flutter. I have delivered 10 production-ready apps published on the App Store and Google Play Store, serving 15,000+ users with a 99% crash-free rate. I focus on clean architecture, performance optimization, and long-term maintainability. I collaborate closely with designers and product teams to translate business requirements into intuitive user experiences, while ensuring code quality, scalability, and smooth feature evolution across healthcare, dating, EV, and lifestyle platforms.

Available to hire

I’m a Mobile Developer with 4+ years of experience building and scaling iOS and Android applications using React Native and Flutter. I have delivered 10 production-ready apps published on the App Store and Google Play Store, serving 15,000+ users with a 99% crash-free rate.

I focus on clean architecture, performance optimization, and long-term maintainability. I collaborate closely with designers and product teams to translate business requirements into intuitive user experiences, while ensuring code quality, scalability, and smooth feature evolution across healthcare, dating, EV, and lifestyle platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Indonesian

Fluent

Work Experience

Mobile Developer at Virtual Spirit Technology Sdn Bhd

September 1, 2021 - January 1, 2026

Built and maintained production-scale mobile applications across Healthcare, Dating, E-Commerce, and Real Estate using React Native and Flutter. Developed clean, modular components for long-term maintainability. Collaborated with UI/UX designers and product teams to translate requirements into intuitive user experiences. Improved performance and stability, contributing to a 99% crash-free rate in production. Integrated analytics and monitoring to support data-driven decisions. Participated in feature development, bug fixing, QA support, and App Store / Google Play release cycles.

Mobile & Web Developer at Nexa Lab Pty Ltd

July 1, 2023 - June 1, 2024

Developed responsive web apps with React.js and Next.js, and mobile apps with React Native and TypeScript. Collaborated with cross-functional teams to design user-centric UI/UX solutions, improving satisfaction and retention. Implemented state management with React Query and Zustand for predictable, scalable behavior. Delivered projects end-to-end within client timelines and quality standards.

Software Engineer (Intern) at PT Sinergi Informatika Semen Indonesia - SISI

January 1, 2020 - April 1, 2020

Designed and delivered modern UI/UX concepts for the Forca CRM mobile app. Developed the CRM mobile app using React Native with reusable components and performance optimization. Implemented interactive features to enhance usability and collaborated with internal teams to align technical implementation with business needs.