Vladyslav Onatskyi

Applied AI-assisted and parallel agent workflows to improve development speed and code quality. Led development of a large-scale React Native app, including a major upgrade across 10 versions with zero critical regressions, ensuring production stability. Built and maintained cross-platform health data pipelines (Apple Health, Health Connect, BLE, sensors), improving data reliability and coverage. Implemented robust background and killed-state execution flows, ensuring consistent real-time data synchronization under OS constraints.

My key focus as a Crypto Trader has been building and executing a long-term strategy based on compound growth with strict risk management. I developed a personal trading system that emphasizes minimal risk exposure per position, aiming to consistently grow the portfolio with calculated entries, fixed stop losses, and adaptive position sizing. My approach is grounded in protecting capital while leveraging high-conviction setups, leading to stable returns over time. Additionally, I continuously refine my strategy using data analysis and post-trade review to enhance decision-making and performance sustainability.

Led development of a satellite-based snow visualization platform for ski resorts, enabling real-time 3D snow depth mapping using MapboxGL. Delivered mobile app with offline support and reliable sync, ensuring usability in remote mountain conditions. Built real-time collaborative web platform (React Konva, WebSockets) and improved performance, reducing page load time by 40%.

I worked as a React Native, contributing to the development of a Smart Mobile Network Management App for a major telecommunications provider. My role included engineering high-performance navigation and UI components. Through targeted improvements, I achieved a 15% reduction in CPU usage in several key components. I maintained 90%+ test coverage with unit and e2e testing, and successfully published the app to the Google Play Store. Additionally, I developed an Obsidian Plugin using Electron and Preact, managing the full development cycle and achieving 85% test coverage for reliability and robustness.

I worked as a Frontend Developer, directly communicating with clients to understand project requirements and deliver optimized solutions. My responsibilities included integrating new APIs, fixing bugs, and enhancing UI/UX to improve application stability and user experience.