I build mobile apps that move money.
Senior mobile engineer with seven years in React Native and native Android, most of them in fintech and crypto: trading screens, wallets, real-time market data and the rounding rules that keep balances honest.
Open to senior roles, remote or with relocation. Based in Bucharest and Chișinău, EU citizen.
| Price | Amount | Total |
|---|---|---|
| 64,018.5 | 1.3375 | 3.8827 |
| 64,017.5 | 0.3947 | 2.5452 |
| 64,016.5 | 0.7052 | 2.1505 |
| 64,015.5 | 0.4836 | 1.4453 |
| 64,014.5 | 0.4147 | 0.9617 |
| 64,013.5 | 0.5355 | 0.5470 |
| 64,012.5 | 0.0115 | 0.0115 |
| 64,012.5spread 1.0 | ||
| 64,011.5 | 0.0266 | 0.0266 |
| 64,010.5 | 0.3855 | 0.4121 |
| 64,009.5 | 0.3243 | 0.7364 |
| 64,008.5 | 0.2527 | 0.9891 |
| 64,007.5 | 0.9276 | 1.9167 |
| 64,006.5 | 0.2419 | 2.1586 |
| 64,005.5 | 0.9100 | 3.0686 |
Writing
Work
- Nov 2025 – now
Crypto exchange (under NDA)
Senior React Native / Android developer
Wallet, deposits, withdrawals and transfers in React Native. A real-time spot trading terminal, an in-house charting library and a design system in Kotlin and Compose on a shared Kotlin Multiplatform core.
- Jul 2023 – Nov 2025
Clique Wealth Management
Senior React Native developer
App architecture with Feature-Sliced Design, secure native modules with Android Keystore and BiometricPrompt. Crash rate down 25%, launch time and memory use down 30%.
- Mar 2022 – Jun 2023
Aura Glide
React Native developer
An app that controls a massager over Bluetooth Low Energy, with pairing and real-time device control.
- Jan 2020 – Feb 2022
XAIRO
React Native developer
Four apps built from scratch in React Native and TypeScript, reaching more than 10,000 daily users.
Contact
The fastest way to reach me is Telegram, @umaniukbogdan. Email works too: umaniukbogdan@gmail.com. I'm also on LinkedIn, and new posts go to the Telegram channel t.me/umaniuk_dev.