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Galin Yonchev

@galinyonchev

Senior Mobile Software Engineer at Prepublic, building reusable Flutter SDK components and a digital publishing platform for 20+ branded apps.

Bulgaria

Message

At Prepublic, I develop and maintain Flutter white-label applications and reusable SDK components, including audio playback, text-to-speech, and shared UI modules. I’ve helped evolve a digital publishing and ePaper platform supporting 20+ branded apps from shared codebases.

Across iOS and Flutter projects, I’ve contributed to production apps in IoT, fintech, energy, media, and consumer products. My work has included smart-home integrations using BLE, Zigbee, and ESP32, as well as freelance apps delivered from implementation through store release.

Experience

Work history, roles, and key accomplishments

Current

Senior Mobile Software Engineer

Current

Prepublic

Nov 2022 - Present (4 years)

Developed and maintained multiple Flutter-based white-label mobile applications serving hundreds of thousands of end users. Designed and implemented reusable Flutter SDK components, including audio playback, TTS, and shared UI modules.

Flutter Dart White Labeling SDK Development Audio Playback Software TTS UI Components Digital Publishing EPaper Cross Platform Development

Senior Mobile Engineer

Droxic

Oct 2017 - Oct 2022 (5 years)

Delivered multiple production mobile applications across IoT, fintech, energy, and consumer domains. Developed smart home mobile solutions integrating BLE, Zigbee, and ESP32-based device provisioning workflows.

iOS Flutter IoT BLE Zigbee ESP32 app store Google Play Architecture Code Review Mentorship

iOS Developer

Smart Interactive Agency

Jul 2015 - Sep 2017 (2 years 2 months)

Delivered production iOS applications for international clients across multiple industries. Implemented new features, integrations, and performance improvements, and mentored junior developers.

iOS Swift Objective C Client Collaboration Mentorship Software Development Lifecycle

iOS Developer

iSDC

Aug 2014 - Jul 2015 (11 months)

Developed an internal productivity platform for task management and workflow organization. Migrated application components from Objective-C to Swift, improving maintainability.

iOS Swift Objective C Migration API Integration Data Handling

Junior iOS Developer

TaraSoft

Feb 2013 - Jul 2014 (1 year 5 months)

Developed and released multiple iOS applications from concept through App Store publication. Built audio streaming applications with background playback, networking, and persistent data storage.

iOS Swift Objective C Audio Streaming Background Playback Networking REST APIs app store