Oleksii G.

Senior Full Stack Developer | React, Angular, Next.js, NestJS & AI

Senior Full Stack Developer with 10+ years of experience building production web applications, data-heavy SPAs, backend APIs, and AI tool integrations. I help teams design and ship reliable systems using Angular, React, Next.js, Node.js, NestJS, SQL/PostgreSQL, MongoDB, Docker, AWS, and modern agent protocols such as Model Context Protocol (MCP) and FastMCP. My recent work focuses on applications that manage complex data flows: documents, work hours, healthcare data, sport analytics, reporting dashboards, and real-time updates. I have also built healthcare software for Radiation Therapy, including an RT data viewer and storage system with backup workflows, reporting visualizations, and real-time updates using WebSockets and RxJS. I can help with: - MCP server development and FastMCP-based tools - AI agent integrations with existing APIs, databases, and internal systems - Angular, React, Next.js, Node.js, and NestJS full stack development - PostgreSQL, MongoDB, and SQL-backed data workflows - Dockerized development and deployment environments - Real-time dashboards, reporting, and data visualization I bring senior-level ownership: understanding requirements, designing practical architecture, writing maintainable code, and communicating clearly throughout the project.