Roman A.
London, United Kingdom
100%
Job Success
Top Rated Plus
Senior React Native Developer
$45.00/hr
Hi, I’m Roman — a highly experienced mobile developer with 8+ years of proven success building mobile applications that skyrocket to the top of the App Store and Google Play. I’m passionate about crafting clean, scalable architecture and, above all, fostering transparent and effective communication throughout every stage of development.
Whether it’s taking the lead on React Native development, conducting code reviews, collaborating with clients, or interviewing candidates — I bring both technical skill and strategic insight to the table.
🔧 My Tech Stack:
🎯 TypeScript, JavaScript
🎯 React Native, React.js, Next.js
🎯 Node.js
🎯 Kotlin / Java (Android Studio)
🎯 Swift / Objective-C (Xcode)
🎯 Firebase, Firestore
🎯 MongoDB, SQL
🤝 Why Partner With Beyond Codeline:
✅ 30+ successful Upwork projects — all with 5-star reviews
✅ 97% of our clients receive fully cash-free, production-ready apps
✅ Work with a hand-picked team of senior developers, designers & project managers
✅ Clear, direct communication — always available on Slack
✅ Agile & Scrum methodology tailored to your project’s unique needs
✅ Remote-friendly process optimized for any time zone
✅ Honest feedback, complete transparency, and no over-promising
Have an idea you’re ready to bring to life?
Let’s build something amazing together — just send me a message 🙌🏻
Work history
Work history
React Native Improvements
Jan 28, 2025
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May 4, 2025
No feedback given
Private earnings
Experienced Developer for Bridging iOS SDK Functionality to React Native
Jan 13, 2025
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Mar 6, 2025
"Great experience working with Roman and the Codeline team! They demonstrated excellent communication skills and provided quick responses throughout the project. Their professionalism and efficiency made the collaboration smooth and…
Private earnings
React Native Expo - Differences between Android Dev version and Build
Oct 25, 2024
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Dec 23, 2024
"Roman fixed a complicated issue we had on production, improved some features we already had after carefully explaining what he would do. Overall very satisfied by the work done. I…
Private earnings
Review codes for a mobile app built on react native (frontend) backend mongo and react.js
Nov 18, 2024
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Nov 21, 2024
""Working with Roman was an absolute pleasure! He is a top-notch professional, always on time, and takes initiative in solving complex problems. His experience in React Native and attention to…
Private earnings
Beam Mobile App
Jan 11, 2024
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Mar 19, 2024
Private earnings
Fixing New Bugs and Final Design tweaks for MVP release
Jan 19, 2023
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Feb 6, 2023
Private earnings
Fixing New Bugs and Final Design tweaks for MVP release
Nov 30, 2022
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Jan 4, 2023
Private earnings
App Design Tweaks and Improvements
Dec 6, 2022
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Dec 13, 2022
Private earnings
React Native project feature improvements
Dec 2, 2022
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Dec 12, 2022
"Great experience, have moved to a longer term upwork contract to continue our collaboration"
Private earnings
URGENT React Native project will not work locally on Mac M1 - need to fix
Dec 1, 2022
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Dec 1, 2022
"Roman and his team were brilliant. I was in a real difficult position to get some work done, and had a technical problem which I could not solve. But within…
Private earnings
React / React Native Developer Needed to Finalise Web App MVP
Jul 4, 2025
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Present
Job in progress
Private earnings
Trisor Native App - Android & Feature Dev
Apr 7, 2025
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Present
Job in progress
Private earnings
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