Premium Taxi App startup based on Yandex algo technology backend and Flutter Mobile apps (client and driver). Launched in Brazil, San Paulo.- Ensured timely delivery of features by taking proactive ownership.- Contributed to product development and refinement.- Collaborated with cross-functional teams to achieve collective goals.- Directed development processes and managed teams, adhering to SOLID, DRY, KISS principles.- Communicated company values and objectives, fostering shared responsibility.Stack:Dart, Flutter, REST, BLOC, Google Map Kit, GPS kit, injectable, json_serializable, websockets, Firebase, Camera API, Stripe, Lottie animations, l10n, Flutter Test.

Application for sellers that combines both multiple messengers and stages of sale(sales funnel).The integral part is messenger with almost fully replicated Telegram and WhatsApp functionality.- Team management- Hiring- Coaching team members- Code review- Design, architecture- Test Driven Development- Close work with messengers API- Local dynamic caching, with reactive fluid UI on Flutter- Release delivery schedule and feature flags to stable realeases- Adopted a reworked scrum model for our team that boosts productivityStack:Dart, Flutter, Riverpod, REST, Websockets, Freezed, Camera API, Flutter Secure Storage, l10n, Dartz, Dio, Injectable, get it, Flutter Test, LocalAuth, Drift, AutoRoute, Animate, Lottie Animation, Google/Apple login.

Manage mobile development projects in Crypto/FinTech domain.- Led a team of 20+ developers.- Integrated designs using Figma and Adobe XD.- Used BLoC pattern with dartz and rxdart.- Integrated APIs using Dio.- Applied Kanban, SMART, and SCRUM for rapid development.- Established processes with Jira/Trello, YouTrack, and Notion.- Promoted code evaluation and organized developer meetings.- Set up CI/CD with Fastlane, Bitrise, GitLab, and SonarQube. Deployed secure GPT-driven code completion (StarCoder).- Developed secure packages for banking apps with local_auth, flutter_secure_storage, and crypto.

Developed from scratch a secure mobile application for a crypto bank using Flutter.1. Implemented robust authentication features, including two-factor and biometric authentication.2. Integrated cryptocurrency wallets, exchanges, and payment gateways for seamless transactions.3. Provides real-time market data and price tracking for multiple cryptocurrencies.4. Ensures stringent security measures to protect users' funds and personal information.5. Collaborated cross-functionally to deliver high quality software solutions.6. Optimized application performance, improving load times and memory usage efficiency.Stack: BLOC, Flutter Secure Storage, l10n, Dart FFI, Dartz, Dio, Freezed, Injectable, Flutter Test, Web-Sockets, LocalAuth, SQLite, AutoRoute, Crypto, DeviceID, Animate, Rive Animation, etc.

Developed in-house iOS and Android apps, managed store deployment, and provided post-release support.1. Built online dating app with Google ML face recognition, WebRTC video/audio calls, web socket chat, BLOC, REST API, and login with Google/Apple.2. Developed movie theater focused "Kinopoisk" app using JSON, BLOC, REST API, and login with Google/Apple.3. Contributed to the development of a food delivery app using MVVM, ApplePay, GPay, Firebase Messaging, Yandex Metrica, and Shared Preferences.4. Developed hotel service app (client and staff versions) with features like ApplePay, GPay, Google/Apple login, web-socket chat, Firebase, and QR scanning.5. Developed affirmation-relaxation app using BLOC, REST API, and login with Google/Apple, using packages like l10n, Freezed, GetIt, and Retrofit for efficient development.

1. Developed and launch of feature-rich mobile application using Flutter.2. Implemented successful user acquisition and retention strategies, resulting in remarkable app downloads and active user growth.3. Led monetization initiatives through in-app purchases and advertising partnerships, resulting in revenue growth.4. Built and managed high-performing teams across product development, marketing, and customer support.

To improve efficiency and enhance various aspects of operations, the following actions have been taken:1. Digitized document management processes, implementing digital solutions to streamline and modernize the system.2. Optimized supply routes to streamline logistics and reduce costs.3. Utilized agile SCRUM methodologies to prioritize backlog items and ensure efficient development cycles.4. Conducted customer needs analysis to gain insight into requirements and ultimately improve customer satisfaction.5. Defined key selling points based on customer insights, which contributed to improved relationships with both residential and wholesale customers.6. Worked with Yandex Maps to integrate mapping solutions into the product, providing enhanced functionality and improving the overall user experience.