Dmytro – AWS, React, Typescript

A fintech internet-acquiring platform for the client-facing (B2C) side of payment processing.

• Owned the client-facing (B2C) side end-to-end across the Nest.js/Node.js backend and React frontend;
• Designed and built a complex order placement UI that accepted credit card, Apple Pay, and Google Pay payments with delivery management and authentication;
• Built a reusable web credit card tokenization widget from backend to frontend and a web SDK for reuse across products;
• Led a team of 5 middle and junior engineers and helped them grow technically;
• Worked closely with product owners and business analysts to turn requirements into architecture decisions and technical tasks;
• Helped prioritize the backlog and ensured features were delivered on time;
• Set up frontend and backend monitoring with Sentry, GCP internal logs, and Grafana;
• Managed CI/CD pipelines for automated build, test, and deploy;
• Used Redis and RabbitMQ for checkout caching and reliable asynchronous message processing;
• Led the technical direction and full-stack delivery of the consumer-facing platform.

The main company website and supporting mobile app backend and shared component library for web and mobile.

• Led the migration of the company’s primary website from Gatsby.js and Netlify CMS to Next.js, improving maintainability and performance;
• Managed the transition of web infrastructure and deployment workflows to Vercel;
• Designed and developed the backend services for a React Native mobile application using Node.js and Nest.js;
• Contributed to React Native application development, delivering features across both frontend and backend layers;
• Designed and implemented a shared component library used across React and React Native applications, ensuring a consistent user experience on web and mobile platforms;
• Collaborated across multiple product squads, contributing to architecture decisions, technical planning, and full-stack feature development;
• Established reusable development patterns and UI standards to improve cross-team efficiency and code consistency.

Space planning and facility management platform with web and mobile applications for uploading and managing floor plans, organizing spaces and assets, and exploring interactive building visualizations. The system enables users to efficiently manage workplace layouts, track space utilization, and access real-time spatial data through intuitive visual interfaces.

• Developed and maintained user interfaces for a space planning and facility management platform across web and mobile applications;
• Built responsive web and mobile features from scratch, translating product requirements and designs into production-ready solutions;
• Implemented new functionality and enhanced existing features to improve usability, performance, and user experience;
• Collaborated with cross-functional teams to deliver product improvements and ensure consistency across platforms;
• Contributed to UI architecture, component development, and ongoing application maintenance.

Cross-platform print management solution for wide-format printers, available as both a web application and an Electron-based desktop application. The platform enables users to configure print jobs, manage printer settings, monitor printing workflows, and streamline production processes through a unified interface across desktop and web environments.

• Developed and maintained a cross-platform interface for managing wide-format printing workflows, available as both a web application and an Electron desktop app;
• Built and supported UI features for configuring print jobs, managing printer settings, and monitoring job status in real time;
• Implemented responsive and consistent user interfaces across web and desktop environments to ensure a unified user experience;
• Collaborated with backend and product teams to integrate printing workflows and improve system reliability;
• Delivered new features and UI improvements to streamline print operations and enhance usability for end users.

Corporate travel management platform providing a user interface for booking, managing, and tracking business travel arrangements. The system enables employees and administrators to handle travel requests, approvals, itineraries, and expense-related workflows in a centralized digital environment.

• Developed and maintained the corporate travel management system UI;
• Supported and maintained the legacy user interface;
• Contributed to the migration of the UI to React;
• Continued migration work and feature support until the project was discontinued.

A large educational service platform with more than 10 client sites, including custom writing services, dashboards, and client-facing websites.

• Contributed to a large-scale educational platform consisting of 10+ client-facing websites;
• Developed and delivered new features across multiple services in collaboration with product teams;
• Participated in writing technical specifications and effort estimations for planned work;
• Built custom content and writing services, including two complex dashboards using a Laravel backend and React frontend;
• Developed five client-facing websites using an Express.js backend with React and custom server-side rendering;
• Worked across multiple codebases, ensuring consistency, maintainability, and performance across distributed systems.