Developed HRM system for optimizing and automating processes of customers in Europe, Indonesia, Kazakhstan (http://5qit.com)Buillt crypto-wallet using Scala, Kafka, Zeebe for workflows to convert, withdraw, popup, transfer money.Built tool for transforming SQL-like syntax to MongoDB syntax which allows toconstruct queries on UI.

Developed the back-end of the mobile app with 1.5M+ downloads for customers of the FotrteBank.Developed auth system for services, which meets the requirements of PCI DSS. Balanced load and increased the reliability of services using Akka, Kafka and by splitting the monolith to handle up to 1000 RPS.

Built ERP system for gold mining company that optimizes the workflows of 4000+ employees.Designed and developed equipment maintenance system as a startup with traction more than 450000$.Developed ETL service for processing and analyzing data over 10GB per day.

Built system for retailers to manage over 1M goods, and handle payments, accounting, orders, warehousing.Developed chat platform reliable up to 1000 messages per second with bot providing services such as ordering goods, searching, online payment. Developed auth-provider by implementing OAuth2 protocol and custom ACL- service, and KYC for the e-loans system to validate customers which allowed the company to reach a turnover 6M+ dollars.

Teaching students to front and back end development using HTML, CSS/LESS, AngularJS, Spring Boot, MongoDB, MySQL. Covering basic topics of interface design, software design, application deployment.

Web development, software architecture and design, IT-consulting.

Web development