Yurii Kolesnykov

• Automated CI/CD pipelines for various backend, frontend, and mobile applications, improving deployment frequency and reliability. • Configured, managed, and maintained web hosting servers (LAMP & MEAN stacks), ensuring high availability and performance.

FitTrack (Flutter Fitness App): • Spearheaded the integration of native Swift iOS modules with Flutter for seamless communication with fitness hardware (watches, scales, tonometers, glucometers) via Bluetooth. Chevron (Petrol Station App): • Developed and implemented new user-facing features and UI enhancements across the application. • Engineered a key feature enabling fuel pump selection via QR code scanning, providing a fallback mechanism when GPS is unavailable. Fitplan (Gym & Home Workouts App): • Launched a new marketing invite campaign, incorporating A/B testing and deep linking functionality to drive user acquisition. • Improved user onboarding flow related to the campaign, enhancing conversion rates. DocChat (Telemedicine App): • Redesigned the iPhone and iPad user interface (programmatically using frames) to improve user experience. • Optimised real-time communication features (text, audio, video) for online medical consultations. Atracx (Indoor Navigation POC): • Developed a Proof-of-Concept application for indoor mall navigation using Bluetooth beacons, demonstrating feasibility and potential features like proximity-based notifications. Go Problems (Go Game App): • Significantly optimized 2D drawing performance using Core Graphics (Quartz). • Improved the efficiency of browsing large datasets of predefined game situations. Contributed to the development, maintenance, and feature enhancement of numerous other small-to-medium scale iOS applications.