Тимур

Tymur Tereshchenko
GitHub | LinkedIn | [open contact info](look above in the "contact info" section)

Education and awards
EF SET English Certificate B2/C1​ 2025

Experience​
FavBet Tech, Middle Mobile Developer​ 10/2025 - 04/2026
•​ Responsible for architectural migration from monolith to modular codebase
•​ Built and maintained critical features: promotions, tournaments, payment UI, and user authentication
•​ Enhanced application performance by minimizing redundant network overhead
•​ Hardened platform security by implementing encrypted payment processing modules
Panda Team, Flutter Developer​ 01/2025 - 10/2025
•​ Architected a high-performance fitness VOD platform, driving a 35% increase in user completion rates
•​ Developed a high-precision geo-discovery engine utilizing OpenStreetMap for hyper-local user matching
•​ Fortified platform integrity by deploying a liveness-detection photo verification system
•​ Integrated robust OAuth/JWT authentication protocols ensuring secure data handling
•​ Established Clean Architecture standards and Flutter best practices for junior engineering talent
OoNt LTD, Flutter & Backend Developer​ 03/2024 - 12/2024
•​ Mentored development team of 3 developers ensuring code quality and delivery timelines
•​ Automated internal workflows by developing Flutter Web administrative tools
•​ Orchestrated complex cloud integrations using Google Maps SDK, Directions, and Places APIs
•​ Designed an order tracking architecture, bridging mobile and backend systems for data synchronization
•​ Managed cloud infrastructure via Firebase Functions and GCP VMs
•​ Achieved 99.8% system availability for critical delivery services

Notable Projects
Unit Price Calculator | GitHub​ 05/2022
•​ Engineered a high-utility price comparison tool using Flutter
•​ Deployed one of the early-adoption production instances of Material 3 components
School e-diary Mobile App | GitHub​ 09/2022 - 10/2022
•​ Architected an Android application featuring seamless WebView integration and local data persistence
•​ Implemented reactive data streams using RxDart and Dio for API communication and synchronization
•​ Built a custom UI kit based on Adobe Spectrum design principles to standardize visual identity
Cross-Platform Telegram Client | GitHub​ 01/2022 - 06/2022
•​ Developed a high-performance Telegram client for all major operating systems using a single codebase
•​ Integrated low-level native backend communication utilizing Dart FFI
•​ Engineered a real-time messaging interface supporting group chats and media-sharing capabilities

Skills
Languages: English - C1 Advanced; Ukrainian - native; German - A2 (Actively pursuing B2);
Programming Languages: Dart, TypeScript, HTML5, CSS3, SQL
Frameworks & Libraries: Flutter (Mobile, Web, Desktop), Node.js, Express, RxDart, Socket.io, Dio
State Management: Riverpod, Provider, BLoC
Development Tools: Git, Jira, TestFlight, Firebase App Distribution
Cloud & Backend: Firebase, Google Cloud Platform (VMs, Maps SDK, Places API), JWT, OAuth 2.0.