Sergey Konstantinov has been working with APIs for more than a decade. He started his career as a software engineer in the Maps API division at Yandex and eventually became the head of the service, being responsible for both technical architecture and product management.

During this tenure, Sergey got a unique experience in building world-class APIs with a daily audience of tens of millions, planning roadmaps for such a service, and giving numerous public speeches. He also worked for a year and a half as a member of the W3C Technical Architecture Group.

After nine years in Maps, Sergey switched to technical-lead roles in other departments and companies, leading integration efforts and being responsible for the technical architecture of entire business units. Today, Sergey lives in Tallinn, Estonia, and works as a staff software engineer at Bolt.