As a Freelance Full-Stack Developer, I developed a self-sport training application with a responsive React interface, an admin panel, and PayPal payments. I built its Node.js and Express.js backend, exposed RESTful APIs, and used MongoDB to store user profiles, workouts, and progress history.
At Digital Natives, I built backend services for an Airbnb-like platform and integrated OpenAI and FastForex APIs. Earlier, at PROMOCUISINE (Cuisina + Marmotek), I developed sales metrics and product management features, including rankings that increased team motivation by 30%.

