Tretia Storona Invest

Led the development of a secure token selling platform using React.js, TypeScript, and Tailwind CSS, delivering a seamlessand responsive user experience.Integrated the Portmone payment gateway and implemented pkpass digital ticketing for convenient transactions.Developed backend services with FastAPI, and created an interactive Telegram bot (Telebot) for user communication andnotifications.

Tretia Storona App

Spearheaded the creation of a Flutter-based mobile app for managing user agreements with real-time chat functionalitypowered by WebRTC and WebSockets.Built scalable backend services in Go using the Gin framework and integrated comprehensive payment systems, includingGoogle Pay and Apple Pay.Managed end-to-end app deployment, publishing on Google Play Console and Apple Connect with extensive TestFlighttesting for quality assurance.Led cross-functional collaboration between the development team, designers, and business stakeholders to optimizeproduct features and user experience.

Leadership & Team Management

Oversaw all aspects of team leadership including task allocation, progress tracking, and enforcing best practices throughcode reviews.Coordinated business processes and development cycles to align technical efforts with stakeholders requirements andbusiness objectives.Facilitated communication between developers, UI/UX designers, and business analysts to ensure cohesive projectexecution and prompt resolution of issues.

Led project management efforts, delivering high-quality software solutions on time. Developed user interfaces and applications utilizing Flutter and React.js to enhance user experience. Created robust backend systems using FastAPI and PostgreSQL, ensuring efficient data handling. Implemented best practices for version control and deployment with Git and Docker, improving team collaboration. Conducted code reviews and mentored junior developers in agile methodologies, fostering a culture of continuouslearning.

Built and launched a complete e-commerce platform from scratch, handling front-end, back-end, deployment, SEO, anddesign. Implemented automated product stock management based on order statuses for accurate inventory tracking. Enabled secure online payment processing using Monobank's acquiring API. Integrated Nova Poshta and Ukrposhta APIs forstreamlined order fulfllment, including price calculations, address autocompletion, and shipment invoice creation. Acted asthe primary point of contact throughout the project, ensuring successful delivery and client satisfaction. Had a role of projectmanager and was responsible for planning the project and the process of development

Developed dynamic applications using Flutter SDK to enhance user engagement. Integrated OpenAI API for real-time responses and seamless multilingual support. Created personalized learning roadmaps tailored to user proficiency in languages. Implemented speech-to-text and text-to-speech features to facilitate interactive language practice. Led project management efforts, overseeing planning and execution of development tasks.

Custom Python DevelopmentCreated Python scripts and applications for data processing, automation, and web scraping tailored to clientrequirements.JavaScript Frontend & BackendDeveloped and enhanced both front-end and back-end JavaScript projects, from simple website updates to interactiveweb apps.Maintained and debugged existing Python and JavaScript codebases to ensure efficient and error-free operation.Integrated third-party APIs to expand web application functionality and access external data sources.Mobile DevelopmentBuilt small mobile games and utility apps, including a translator, using Flutter framework.