- Transitioning to the AWS Cloud.- Implementing a serverless, event-driven architecture.Technologies: AWS, Serverless, Lambdas, ECS/Fargate, SNS, SQS, SES, EventBridge, DynamoDB, DocumentDB, Step Functions, Kafka

- Assembled a team comprising 6 back-end developers and 3 automation testing specialists.- Created an automation system for the Department of Operations.- Implemented stock options in the derivatives market.- Replaced legacy systems with modern technological services.- Established continuous integration and versioning processes.- Introduced continuous inspection to maintain code quality.- Implemented the practice of quality gates.- Successfully reduced the number of production incidents by 8 times.- Reduced the nightly build time from 2 hours to 20 minutes.Technologies: Java 8/11, Kotlin, Spring Boot, Spring Cloud (Gateway, OpenFeign, Hystrix, Eureka), IntelliJ Platform Plugin SDK, Grafana, Git, Gitlab CI, SonarQube.

- Reengineered the infrastructure of a recommender systems.- Developed a system for validating advertisements.Technologies: Golang, gRPC, Kubernetes.

Developed products for online banking, including:- Corporate credit;- Instant debit cards.

- Led the development team for a restaurant booking system project.- Assembled and managed a team.- Redesigned the system, transforming a startup into a stable product system.- Guided system architecture decisions from concept to release.- Focused on performance and scaling aspects.- Integrated the system with POS systems.- Collaborated with project managers and other engineering teams.- Improved and implemented new development processes, incorporating modern software development practices.Technologies: Java, Concurrency, Spring (MVC, Data), Spring Cloud (Boot, Config), Hibernate, JUnit, Docker, REST, JSON-RPC, PostgreSQL, Redis, gradle, git.

- Developed a financial services application for collecting and storing client data.- Created a distributed application for staffing analysis.Designed server- and client-side components as a Java/JavaScript developer.Technologies: Java, EJB, Jersey. JavaScript, Angular, REST, TomEE, Linux, PostgreSQL, ant, maven, SVN.

Developed specific features for the CRM system used by the State Archive.