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I am a passionate Flutter and mobile developer with over 5 years of experience delivering scalable, high-performance apps. I enjoy turning complex requirements into clean, maintainable code and collaborating with product and design teams to create exceptional user experiences. I specialize in Flutter, Dart, Firebase, REST APIs, and state management (Provider, BLoC, MVVM). I’m comfortable leading a team, setting up CI/CD pipelines, and shipping reliable software with offline support and robust testing.…I am a passionate Flutter and mobile developer with over 5 years of experience delivering scalable, high-performance apps. I enjoy turning complex requirements into clean, maintainable code and collaborating with product and design teams to create exceptional user experiences. I specialize in Flutter, Dart, Firebase, REST APIs, and state management (Provider, BLoC, MVVM). I’m comfortable leading a team, setting up CI/CD pipelines, and shipping reliable software with offline support and robust testing.

Srdjan Petkovic

App Developer, Web Developer, Front-End Developer, +1

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I am a passionate Flutter and mobile developer with over 5 years of experience delivering scalable, high-performance apps. I enjoy turning complex requirements into clean, maintainable code and collaborating with product and design teams to create exceptional user experiences. I specialize in Flutter, Dart, Firebase, REST APIs, and state management (Provider, BLoC, MVVM). I’m comfortable leading a team, setting up CI/CD pipelines, and shipping reliable software with offline support and robust testing.…I am a passionate Flutter and mobile developer with over 5 years of experience delivering scalable, high-performance apps. I enjoy turning complex requirements into clean, maintainable code and collaborating with product and design teams to create exceptional user experiences. I specialize in Flutter, Dart, Firebase, REST APIs, and state management (Provider, BLoC, MVVM). I’m comfortable leading a team, setting up CI/CD pipelines, and shipping reliable software with offline support and robust testing.

Available to hire

I am a passionate Flutter and mobile developer with over 5 years of experience delivering scalable, high-performance apps. I enjoy turning complex requirements into clean, maintainable code and collaborating with product and design teams to create exceptional user experiences.

I specialize in Flutter, Dart, Firebase, REST APIs, and state management (Provider, BLoC, MVVM). I’m comfortable leading a team, setting up CI/CD pipelines, and shipping reliable software with offline support and robust testing.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Serbian

Fluent

Work Experience

Mobile Developer (Flutter) at Freelance / Remote (UK)

June 1, 2020 - Present

Built from scratch a commercial Flutter app for podcasts with 2M+ listeners worldwide; integrated audio/video players; offline download and background playback; implemented push notifications, reminders and real-time chat using Stream; developed in-app subscriptions for iOS and Android; MVVM architecture to improve testability and project structure; collaborated with product, design and development teams as a main developer among 4 engineers.

Software Developer at Attozoic

January 1, 2022 - Present

Led development of multiple projects: beam-location sharing mobile app (Flutter, Firebase) and web tools (Amazon PPC tool with Vue; crypto exchange/affiliate app with React; affiliate apps with React). Built web apps (React, Vue) with SheetJS/Google Sheets integration; collaborated with cross-functional teams; remote work from Serbia.

Freelance Senior Flutter Developer at Certainty

December 1, 2022 - Present

Built B2B compliance & risk tracking app using Flutter. Provided Flutter Web and Windows versions of the app. Implemented flexible/dynamic checklists with offline mode via automatic syncing. Integrated Geolocation, file upload, and SSO authentication. Automated CI/CD pipelines with CodeMagic. Led a team of 4 engineers; conducted code reviews and ensured best practices. Collaborated with clients and customer support teams on feature requests and product improvements.

Flutter Developer at HighPerformance

December 1, 2023 - February 1, 2025

Built from the ground up a commercial Flutter podcast app with 2M+ listeners worldwide. Integrated audio/video players; supported downloads for offline use and background play. Implemented push notifications, reminders, and real-time chat functionality using Stream. Developed subscriptions for both iOS and Android. Implemented MVVM architecture to improve testability and project structure. Worked as a main developer (4 devs), bridging Product, Design, and Development.

Flutter Developer at 1 iotics

January 1, 2022 - December 1, 2023

Built Home Assistant companion app managing devices, rooms, and automations. Improved app loading time by 40% by optimizing API calls and caching. Designed intuitive UI/UX with Flutter animations, page transitions, and Material Design. Created customizable UI themes for user personalization. Built network discovery features to find and set up Home Assistant Controller.

Flutter Developer at Kidesia

January 1, 2021 - January 1, 2022

Developed from scratch a daycare app for parents to track children’s activities and communication. Implemented BLoC state management for scalability. Enabled Flutter Web for consistent cross-platform user experience.

Software Developer at Attozoic

September 1, 2018 - May 1, 2020

Beam (location sharing mobile app): Flutter, Firebase. Amazon – Pay Per Click tool (web): Vue. Sacret Life SLAFF (crypto exchange & affiliate app): React. Amazon PPC tool (web): React, Chrome Extension, Lerna, SheetJS, Google Sheets API.