Back-End Developer with 2.5 years of experience, currently expanding skills to transition into a Full Stack role. Specialized in building and maintaining systems, process automation, and database synchronization (Node.js, TypeScript, React.js, Docker, SQL). Contributed to systems for the State Fire Service and conference platforms like Galop. Over 9 years of experience in sales and management, including a role as Sales Manager. Successfully introduced products to international markets, achieving revenue growth of hundreds of thousands of euros and establishing partnerships with key clients such as Orlen S.A. Combines strong technical expertise with international business development experience, making him a versatile candidate for a Full Stack Developer position.