Senior developer at Booking.com with over 10 years of experience in the IT industry. Graduated from Saint Petersburg State University (SPbU). Since 2007, has progressed to technical team lead in large companies, specializing in distributed systems for the past 7 years. Igor has personally undergone more than 50 technical interviews at BigTech companies, so he understands the typical mistakes candidates make. He is currently sharing his experience and knowledge, helping others successfully prepare for algorithmic sections: several of his mentees have managed to receive offers from Google, Meta, and Amazon.