Serguei Alleko@ask77nlFull Stack EngineerFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Rest API (Intermediate)VerifiedskillWork Experienceask77nl has not updated employment details yet.Educationask77nl has not updated education details yet.Linksask77nl has not updated links details yet. Skillsask77nl has not updated skills details yet.