Yevhen Kovalenko is a Node.js developer at First Sport Group. Colleagues describe them as "Working with Eugene has been an absolute pleasure. He is a true professional who excels in his field. I am consistently impressed by his deep expertise and dedication to delivering high-quality work. One of the things I admire about Eugene is his availability and willingness to help. I know that I can always count on him to be there for discussions, questions, and recommendations related to our tasks. His support and guidance have been invaluable. Eugene's backend skills are truly top-notch. He approaches each task with a high level of professionalism and consistently produces exceptional results. His proficiency in backend development is a tremendous asset to our team. Beyond his technical prowess, Eugene has also been a great mentor in JavaScript. He has taught me so much, and his willingness to share knowledge has significantly contributed to my growth as a developer. What sets Eugene apart is not just his technical abilities, but also his genuine kindness and approachability. He is always approachable and responsive, and his warmth and empathy create a positive and collaborative work environment. I wholeheartedly recommend Eugene to any team in need of a highly skilled and compassionate professional. He is an invaluable team member, and I am grateful for the opportunity to have worked alongside him." and "Yevhen worked as a trainee within the company in a mobile application development project. He recommended himself as a well organized and qualified Backend Developer Specialist. Yevhen worked in IDE-Visual studio Code, used TypeScript Programming language, Node.js Programming platform for JavaScript compilation. Additionally to all mentioned above, Yevhen used Koa.js to develop backend server for the app, ORM library Sequelize for work with a DB. He shows himself as a responsible person, a team player and is not afraid of challenges, ready to master new skills and acquire new knowledge anytime. "