Position: Lead Front-end Engineer (React)
Category: JavaScript
English level: upper
Years of experience: 7

Developed mobile app that works with different ECG measurement hardware with their own SDKs via bluetooth.
Configured mobile app automation testing via Appium.
Significantly improved performance of a web spa.
Last positions:

- Senior Front-end (Mobile) developer at cardiolyse.com. Led small front-end team. Built mobile app (React Native) for iOS & android as well as 2 web SPAs from scratch. Mobile app uses bluetooth serial as well as LE to communicate with ECG measurement devices. Participated in developing of a similar desktop app (TornadoFX) that gave ability to edit complex ECG records and build final report for the doctor. Stack: TS, React, Redux, React Native, Java,/Kotlin, Objective-C.

- Senior Front-end developer at CoinsHarbor. Lead small front-end team. Built web SPA from scratch. This was analytic and portfolio management platform for cryptocurrency traders. Was working with complex charts. Integrated TradingView with custom functionality into our application. Stack: TS, React, Redux.
Open for a long-term full-time cooperation.
Preferred stack is TS, React.