In addition to delivering product and consumer-facing features of the platform, I alsoDeveloped and maintained a UI kit using React and Tailwind, streamlining frontend development for a team of 5-10 developersEstablished a design system with theming and dark mode support, improving UI consistency and customizabilityImproved front-end developer experience by migrating from Webpack + React 16 to Vite + React 18, reducing HMR performance from >30s to instant module replacements and cutting initial bundle size by 50%

Developed a Facebook Messenger chat bot for prospective students of University of Sydney using Botkit, enhancing engagement by automating responses to common inquiries

Developed an MVP product for the Australian real estate market using Firebase, React, and Redux, successfully achieving a $500K crowdfunding target within three months

Led a team of 5 engineers to develop an MVP for a financial social network integrated with online bankingRefactored the Customer Loyalty Program web app for a top 5 Russian bank, enhancing scalability and enabling deployment in two additional banksTechnologies: Java, Kotlin, Spring Boot, Spring Data, PostgreSQL

- Leading the development, automated testing and deployment of web application for booking sport courts.- Updated an application from Java EE 5 to Java EE 7, migrated from RichFaces to PrimeFaces.- Refactored the core functionality to have more understandable code and better performance.- Created a new front-end in React.- Introduced code quality pipeline, including unit and Selenium tests, Jenkins CI server, static code analysisTechnologies: Java, EJB, JSF, JPA, PrimeFaces, Maven

- Implemented new features in JavaEE e-commerce and customer service solution- Created unit tests and fixed bugs- Created a standalone tool for populating database used for performance tests

- Developed the iPad application called Muscle & Bone Study.- Created a website showing local offers and discounts.- Built a website covering regional news based on Drupal.- Crafted the UI for the Spyder display calibration software for professional photographers and studios.- Created J2ME application for tourists reading RFID tags with city information.- Created a dance studio attendance tracking application.- Created WAP site for social mobile communication service.Technologies: Objective-C, Python, Django, PHP, jQuery, REALBasic, NFC, Spring