CompanySPD TechnologySenior Software Development Engineer (React Native)Full-time · Hybrid
Mar 2021 - Now
// serhii.json
experience: 8 years
age: 28
based: Kyiv, Cherkassy
format: remote · hybrid · on-site
— About
I have experience working on a wide range of projects in Fitness, Medicine, Finance, and Delivery
My responsibilities cover the full development cycle, from project setup and feature development to publishing applications on platforms such as the Apple App Store and Google Play
I also have experience with:
Integrating AI-powered features via backend services built on top of OpenAI
Training and integrating an on-device motion classification model that recognizes user movements from watch sensor data
Building offline-first applications with local data persistence and bi-directional sync
Developing iOS and Android Watch applications and integrating them with React Native apps
Developing native modules using Swift and Java/Kotlin, and libraries for integration with the main project
Developing web applications with Next.js and building TV apps for Android TV and Amazon Fire TV (Fire OS, Vega OS)
The path
companies and their projects
CompanyFreelance ( upwork, freelancer )React.js & React Native DeveloperRemote · Remote
2019 - 2021
CompanyVReal SoftReact.js/React Native DeveloperFull-time · On-site, Remote
Feb 2018 - Mar 2021Selected work
01 / 06
react-native-ergometer
React Native library for Concept2 PM5 performance monitors over Bluetooth Low Energy
Stack
- TypeScript
- React Native
- react-native-ble-plx
- Concept2 PM5 BLE
- CSAFE
- pnpm workspace
- react-native-builder-bob
- Changesets
Stack, in years
Also in daily use: Swift, Android, TypeScript, and Copilot.
Education
Cherkasy State University 'Bohdan Hmelnycky'Bachelor, Computer Software Engineering
2015 - 2019Life
Off the clock
I am a mobile developer with over 8 years of experience in IT. Since childhood I have enjoyed working with computers and creating something on them. I carried this into my adult life and my work
In my free time I spend time with my family and make time for myself. My hobbies are gaming (my second passion since childhood), reading books, listening to music, and walking around the city
MusicMusic as part of life
Music is an integral part of my life. I could not create it myself: some things are just not meant to be. But I enjoy exploring it, discovering unknown bands, and learning about the essence of their songs and the meanings behind them. I also have a small collection of vinyl records
MoviesLife behind the screen
Probably on par with music, I am interested in the film industry, and in some aspects even more. I cannot call myself a film critic, but I can still share some interesting facts and stories about cinema. For example, a little-known fact about Viggo Mortensen and his broken finger in LOTR
BooksAlways within reach
No matter how many movies I watch, only books can convey other worlds, parallel dimensions, and simple human stories. That is why I always keep a book close by
Also in your pocket
This CV is also a mobile app
The same story, built natively with React Native and Expo: project details, light and dark themes, and an AI that answers questions about my experience.
