Konstantin S. Email & Phone Number

Minsk, By

Минск, Республика Беларусь

Project description: One of the world’s largest and most profitable independent digital banks.Overall team size: 10000+ persons.Feature team size: 25 persons.Lead a full-stack team.

Minsk, Belarus

Project description: One of the world’s largest and most profitable independent digital banks.Overall team size: 10000+ persons (300+ iOS Engineers).Feature team size: 25 persons (5 iOS Engineers).Lead a team of 5 Developers.Being involved in all stages of application development, including design, modifications, development, and implementation of the features according to business requirements and quality standards.Putting together projects’ technical structure and reviewing coding and ensuring its quality.Created Documentation, sequence diagram and other low-level system design artefacts.Improved team processes, thereby reducing the lead time of tasks by 3 times.Аchieved an increase in test coverage from 65% to 90% while simultaneously normalizing test pyramid and increasing the number of scenarios being tested by 6 times.

Minsk, Belarus

Project description: crowdsourcing platform Toloka.ai (prev. Yandex.Toloka) https://we.toloka.ai (prev. https://toloka.yandex.com)Overall team size: 275 persons (4 iOS Engineers).Worked on multilingual supporting. Accelerated process of adding new app localization up to 90%. This allowed our team to enter a new market 3 times faster.Implemented UI-tests for all languages (16+) with snapshotting which decreased manual testing time by 5 times. It also added an additional barrier that allows our team to find critical bugs at an early stage.Automated routine tasks for working with localization and preparing assemblies for testing.Strict code review, refactoring old code and implementing new features, worked on offline-first, supporting zero bug policy. Creating and maintaining application CI/CD processes via TeamCity, migrate all processes to CircleCI and GitHub Actions.Reduced Unit-Tests run time by 9 times (45 min -> 5 min).Was on-call engineer responsible for quick reaction (less than 4 hours) to critical bugs and a mentor of Yandex offline educational courses on iOS development.

Minsk, Belarus

Crowdsourcing platform Toloka.ai (prev. Yandex.Toloka)https://we.toloka.ai (prev. https://toloka.yandex.com)

Minsk, Belarus

Projects description: hotel booking; food delivery; self-organizing and time-planning; gif-maker; drawing in AR with saving location.Overall team size: 2 – 4 persons.Full work responsibilities on every stage: requirements collection and planning, product development, collaboration with developers / designers / product owners, scaling, performance improvements, client and code support experience.Challenges: Offline-first applications; Device & iOS compatibility from iPhone 5 & iOS 9; High expectations of UX/UI with custom UI-elements; Location accuracy.Stack: Swift 3 / Swift 4 · MVC · MVP · GCD · Operation · UIKit · Realm · CoreData · URLSession · AVFoundation · CocoaPods · XCTest · ARKit · CoreLocation.

Bachelor'S Degree, Electronic Computing Facilities

Faculty of Computer Systems and Networks

Master'S Degree, Social Psychology

Faculty of Psychology

Mathematics And Physics