• Developed a cross-platform mobile application for debtors using Flutter and BLoC, enabling users to view their debts, make payments, and visualize repayment plans through interactive graphs.• Actively participated in developing the application’s business logic, ensuring efficient handling of user debt calculations, graph creation, and a smooth user experience.• Implemented localization for Kazakh and Russian languages, improving accessibility and user engagement.• Designed dynamic charts that display debt repayment progress based on paid amounts and total debt, providingactionable insights to users and reducing payment delays.

• Developed a cross-platform mobile marketplace for makeup products using Flutter and BLoC for state management, targeting both iOS and Android. Achieved a user base growth of 15% monthly, enhancing market penetration.• Achieved 30% increase in user engagement and product discovery efficiency by designing and integrating a comprehensive product catalog with advanced sorting and filtering capabilities.• Ensured 99.9% inventory accuracy and reducing operational costs by 15% by integrating with 1C software for real-time synchronization of product data.• Enabled online payment processing through integration with a payment gateway, supporting all major credit card networks, which accounted for 40% of total transactions and ensured robust security.

• Designed and developed a comprehensive crypto-stock exchange platform, featuring both a web application using React and a mobile application using Flutter, enhancing trading accessibility and user experience.• Enabled users to buy and sell cryptocurrencies directly with each other, significantly enhancing user engagement and increasing platform liquidity by developing a peer-to-peer (P2P) trading platform.• Enhanced user trust and retention on the platform by integrating multi-currency digital wallet support, facilitating effortless storage, conversion, and transactions of various cryptocurrencies.• Developed real-time push notification systems to alert users of market movements, trade executions, and wallet activities, significantly improving user response times and engagement.• Enhanced trading efficiency and user satisfaction by developing robust trading functionalities including market orders, limit orders, and real-time deal updates.

• Developed a Flutter fitness app using the BLoC pattern for comprehensive state management and event handling, enhancing app scalability and responsiveness.• Utilized Provider for dependency injection, simplifying the management of BLoC objects across the app architecture.• Enabled robust user authentication and profile management systems integrating seamlessly with Firebase Auth.• Implemented Firebase Firestore for efficient real-time data storage and retrieval, ensuring dynamic content updates.• Utilized Firebase Analytics to monitor user engagement and interaction patterns.

• Contributed to the development and optimization of mobile applications, focusing on robust and scalable features.• Supported senior developers in technological decisions and architectural designs.• Engaged in rigorous testing and debugging to maintain application stability and high code quality.• Implemented innovative solutions to streamline development processes and enhance product quality.