Senior Flutter Developer (Custom Editor / AppFlowy)

Location and Citizenship: Russia only (Remote). Rate: up to 275,000 RUB net. Term: 1–2 months. Stack: Flutter, AppFlowy, Unit/Integration tests. Rust and React/TS will be a plus.

What you will be doing: — Working on a service for norm control of engineering documentation. — Fixing complex editor bugs: cursor, selections, formatting, working with table cells. — Finalizing the UI design "pixel by pixel" according to the reference. — Optimizing interface rendering and responsiveness on heavy documents. — Integrating backend contracts and writing tests to prevent regressions.

Requirements (Must have): — 3+ years of Flutter experience. — Real-world experience with custom editor components (selection, focus, shortcuts). — Deep understanding of Flutter UI optimization (jank elimination, working with raster/build). — Skills in diagnosing complex bugs and writing flutter tests.