Marcin – React, Next.js, Node.js

Platforms to provide global leaders in retail with the confidence to innovate and change, helping them win with shoppers.

• Refactored legacy code, improving code maintainability and reducing technical debt;
• Developed and optimized psa file (JDA) export/import functionalities, enhancing data integration and processing efficiency;
• Created and conducted numerous trials to assist retailers in making informed decisions, supporting data-driven strategies;
• Evolved the product to support more complex trial executions;
• Introduced the 2.5 shelves feature, adding depth and stacked product visuals to shelf images, enhancing product presentation;
• Introduced the Linear ticketing system, streamlining project workflows and enhancing team collaboration.

A platform helping people discover promising clinical trials and get in touch with the researchers directly.

• Created front-end components;
• Refactored code debugging;
• Fixed bugs.

A Developer Security Posture Management Platform that aims to secure both human and AI-generated code from the earliest stages of development.

• Developed and maintained a Chrome extension using Svelte to support intelligent code discovery directly in the browser.

Free-to-list property portal that uses innovation and technology to provide better services to both agents and consumers.

• Led a small frontend team;
• Developed the web page and web applications using React/Next;
• Planned and executed legacy code removal and refactoring, improving SEO.

An AI-based system that helps to make decisions in the healthcare industry.

• Led a small frontend team;
• Made decisions on the frontend architecture;
• Collaborated with backend on the API creation;
• Implemented the web app that presents large datasets and predictions in a user-friendly way.

A health insurance company that wanted to provide affordable health insurance for everyone in the US.

• Was responsible for developing a web application and company website in React and Gatsby;
• Was in charge of ensuring the implementation of best practices;
• Cooperated with backend team in creating API interfaces;
• Worked on client web panel and company website migration from Wix to Gatsby.