June 2025 — Present

Full-stack Node.js Developer

Freelance — Client Projects

• Design and deliver end-to-end solutions, turning spoken requirements into effective systems.
• Take full ownership of architecture, implementation, deployment and basic monitoring.
• Build AI-powered features using LLMs and speech-to-text models.
• Advise clients on technical choices, security and maintainability for early-stage products.

Aug 2024 — June 2025

Full-stack Node.js Developer

Aiden — Web Platform

• Built and maintained a monolithic web platform based on AdonisJS and Vue.js.
• Integrated third-party APIs, including OpenAI/ChatGPT and other external services.
• Designed and evolved PostgreSQL schema and migrations; supported CI/CD with Docker and automated tests.

Dec 2021 — May 2024

Backend Node.js Developer

DECARD AG — Service Ecosystem

• Developed internal services on Node.js / NestJS within a large service ecosystem.
• Collaborated with multiple teams to align requirements and ship integrations quickly.
• Improved security and performance of services under load (access control, data protection, optimizations).

Nov 2018 — Dec 2021

C++ Developer

GlobalLogic — Windows Desktop Application

• Maintained and extended a legacy Windows desktop application in C++.
• Optimized algorithms for processing large volumes of binary data.
• Implemented multithreaded processing to increase throughput and responsiveness.

2015 — 2021

M.Sc. in Computer Science

V. N. Karazin Kharkiv National University, Ukraine