Serhii Kostel is a highly skilled developer with extensive experience in various programming languages, such as Python, Go, and Elixir. With a master's degree in electronic systems from Sumy State University, he has worked for several tech companies, including MindPeak GmbH, DSIRF GmbH, and Pillar - Solid Offshore. Kostel's interests lie in improving his programming skills and solving algorithmic tasks, which he does on popular platforms like Checkio.org and Codewars.com. He also enjoys studying new programming languages and gaining knowledge in the fields of machine learning and artificial intelligence. Kostel is a frequent attendee of conferences and meetups like PyCon Ukraine, Elixir Club, and Lambda Club.