Eduard Ulasiuk - Резюме Frontend developer

Frontend Developer | PayMatrix | Moscow | Sep 2023 - Present ▪ Developed five integrated personal accounts for various user categories (business, contractors, support), providing centralized management of payments and accounts, which increased work efficiency and reduced the load on the support service. ▪ Implemented a multilingual payment form supporting 10+ currencies, facilitating entry into international markets and reducing support costs for external partners, which contributed to an increase in the user base. ▪ Optimized interface performance when working with large volumes of data through virtualization and lazy-loading, significantly improving the responsiveness and speed of the application. ▪ Implemented an analytics system and flexible notifications for promptly informing users about transactions and changes, which increased engagement and reduced user errors. ▪ Introduced user functions to improve UX, including automatic form state saving, adaptive tables with real filtering and sorting, and instant detection of critical errors, which reduced errors and accelerated operational processes. ▪ Set up code standardization and testing processes (Prettier, linters, Jest, RTL, Code Review), ensuring high quality and stability of the application, which accelerated development and reduced the number of bugs in production. Frontend Developer | Masterhub | Moscow | Dec 2021 - Present ▪ Developed an interactive schedule for online booking of master services, including date and time selection functionality, which increased the number of successful bookings and reduced the load on administrators. ▪ Implemented a drag-and-drop function for changing booking times, providing flexible schedule management for masters and reducing planning errors. ▪ Ensured real-time data synchronization using Socket.io, eliminating double bookings and increasing platform transparency. ▪ Implemented review list virtualization and a master rating system with commenting capabilities, which improved interface performance and increased client engagement. ▪ Created a master profile page with information editing, photo uploading, and service management features, contributing to increased master satisfaction and retention on the platform. ▪ Introduced a post and story feed for masters, promoting the publication of promotions and content, increasing user engagement and service promotion. ▪ Added support for light and dark interface themes, as well as multilingualism with dynamic error translation, expanding the audience and increasing user retention. ▪ Implemented a notification and reminder system via push notifications, email, and SMS, informing about new bookings, schedule changes, and promotions, which reduced the number of no-shows and increased repeat visits. ▪ Participated in the code review process and supported Storybook for component standardization and code quality improvement, accelerating the development of new features and ensuring interface stability. Frontend Developer | EduNova | Saint Petersburg | Aug 2020 - Present ▪ Developed interfaces for interactive lessons with video, audio, animations, and mini-games to increase student engagement, which led to an increase in average lesson completion time and user retention. ▪ Created personal accounts for students and teachers with integrated analytics and statistics, allowing real-time progress and results tracking, which reduced support service inquiries and increased learning transparency. ▪ Implemented real-time functionality (grades, chats, events) via WebSockets for instant change display to all users, which boosted chat activity and student participation in classes. ▪ Developed flexible forms for tests and assignments supporting various formats, allowing for expanded educational content and the addition of new courses without changing the platform architecture. ▪ Built scalable components for tables and course cards with virtualization, ensuring fast loading and improved user experience when working with large data volumes. ▪ Implemented multilingualism with dynamic error and interface translation for international market entry, attracting new users from different regions. ▪ Optimized UI/UX in collaboration with designers to improve navigation convenience and interface adaptability, positively impacting user retention rates and reducing churn. ▪ Wrote modular and integration tests (Jest, RTL), participated in code review to enhance product reliability and speed up new feature implementation, reducing production errors and increasing release speed. ▪ Maintained Storybook for component creation and documentation, accelerating the development of new pages and improving interface consistency. ▪ Set up CI/CD processes (build, test, deploy) to speed up new version releases and ensure regularity and predictability of releases without manual errors.

Secondary Education

TypeScript Redux Toolkit RTK-Query Vite HTML CSS Jest MaterialUI Code Review React-Testing-Library Vitest Docker CI/CD Git Storybook JavaScript React HTML5 Node.js FSD

Английский Польский

I am an experienced frontend developer specializing in creating and scaling web products.
My experience includes developing complex fintech solutions and social platforms with real-time functionality, including booking systems, multilingual payment forms
supporting international currencies, and developing personal accounts for businesses and support services.
I have successfully taken projects from the minimum viable product (MVP) stage to a stable production environment, ensuring a constant flow of clients. I am known for
my initiative and willingness to take responsibility for the final product.
I also actively participate in UX/UI design and performance optimization, implementing best practices in the development process.