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Full-stack and mobile developer with 5+ years of experience building high-performance applications for international clients. Specialized in React Native, React, Node.js, GraphQL, and CI/CD pipelines, with skills in backend frameworks, AWS cloud services, and modern databases. Experienced in hardware integrations (NFC, Bluetooth, location) and proven in delivering scalable, user-friendly products.…Full-stack and mobile developer with 5+ years of experience building high-performance applications for international clients. Specialized in React Native, React, Node.js, GraphQL, and CI/CD pipelines, with skills in backend frameworks, AWS cloud services, and modern databases. Experienced in hardware integrations (NFC, Bluetooth, location) and proven in delivering scalable, user-friendly products.

Ali Kargar

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

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Full-stack and mobile developer with 5+ years of experience building high-performance applications for international clients. Specialized in React Native, React, Node.js, GraphQL, and CI/CD pipelines, with skills in backend frameworks, AWS cloud services, and modern databases. Experienced in hardware integrations (NFC, Bluetooth, location) and proven in delivering scalable, user-friendly products.…Full-stack and mobile developer with 5+ years of experience building high-performance applications for international clients. Specialized in React Native, React, Node.js, GraphQL, and CI/CD pipelines, with skills in backend frameworks, AWS cloud services, and modern databases. Experienced in hardware integrations (NFC, Bluetooth, location) and proven in delivering scalable, user-friendly products.

Available to hire

Full-stack and mobile developer with 5+ years of experience building high-performance
applications for international clients. Specialized in React Native, React, Node.js, GraphQL, and
CI/CD pipelines, with skills in backend frameworks, AWS cloud services, and modern
databases. Experienced in hardware integrations (NFC, Bluetooth, location) and proven in
delivering scalable, user-friendly products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Javanese

Advanced

Turkish

Fluent

English

Advanced

Work Experience

Full-Stack Remote Developer at Astound Digital (Zermatt)

June 1, 2022 - Present

Delivered E-Bus Live Tracking by building a driver app with background geolocation and Socket.IO to stream live bus positions to the backend, enabling real-time tracking in the Matterhorn app. Launched PeakTrack social activity feature with NFC-based SwissPass scanning for ski card registration, activity recording, photo sharing, and leaderboards. Upgraded the Matterhorn app from RN 0.62 to 0.78 to improve stability and maintainability. Developed and maintained the Matterhorn App (iOS/Android) with 25,000+ installs. Implemented CI/CD pipelines with CircleCI and automated deployments with Fastlane; deployed backend services on AWS (Lambda, EC2, S3) for high availability and scalability.

React Native Remote Developer at Avid Workouts

September 1, 2022 - October 14, 2025

Developed core features with a focus on performance and user experience. Launched a video call feature using WebRTC for real-time communication. Enhanced app stability and performance, improving user experience and retention. Supported build and deployment processes for iOS and Android platforms.

React Native Remote Developer at Apsy

January 1, 2021 - October 14, 2025

Developed media uploader feature with background video compression and parallel uploads; collaborated on AI-driven app development solutions; integrated new features and optimized app performance across multiple devices.

Full-Stack Remote Developer at Astound Digital

June 1, 2022 - Present

Delivered E-Bus Live Tracking by building a driver app with background geolocation that streams live bus positions via Socket.IO to the backend, enabling real-time tracking in the Matterhorn app. Launched PeakTrack social activity feature with NFC-based SwissPass scanning; enabled ski-card registration, photo sharing, activity logging, and leaderboards. Migrated the Matterhorn app from RN 0.62 to 0.78 to improve stability and maintainability. Developed and maintained the Matterhorn App (iOS/Android) with 25k+ installs. Implemented CI/CD with CircleCI and automated deployments with Fastlane; deployed backend services on AWS (Lambda, EC2, S3) for high availability and scalability.

React Native Remote Developer at Avid Workouts

September 1, 2022 - October 24, 2025

Developed core features with a focus on performance and user experience. Launched a video call feature using WebRTC to enable real-time communication within the app. Enhanced app stability and performance, improving user experience and retention. Supported build and deployment processes for iOS and Android platforms.

React Native Remote Developer at Apsy

January 1, 2021 - October 24, 2025

Developed a media uploader feature with background video compression and parallel uploads, improving usability and efficiency. Collaborated on AI-driven app development solutions to enable faster and more affordable product delivery. Integrated new features and optimized app performance across multiple devices.

React Native Remote Developer at Avid Workouts

May 1, 2021 - September 1, 2022

Developed core features prioritizing performance and UX; launched WebRTC-based video call feature for real-time communication; improved app stability and performance; supported iOS and Android build/deploy processes.

React Native Remote Developer at Apsy

January 1, 2020 - January 1, 2021

Developed media uploader with background video compression and parallel uploads; collaborated on AI-driven app development; integrated new features and optimized performance across devices.