Working as a main developer for several projects.

Worked as a team lead of Configure Price Quote and Product Information Management domains during Cloud BSS Upgrade project for T-Mobile Netherlands.- Managed a team of 6 developers (project assignments, feedback tracking, salary reviews, development plans)- Analysed and improved system performance, namely, refactored solution to use efficient data structures, made rarely changed configurations cacheable, enabled browser caches for preflight request- Prototyped migration process of PIM domain entities- Automated and optimized business processes for Product Information Management and configured metrics and dashboard- Continuous Integration/Deployment, merge requests, code reviews, unit/integration testingAchievements:- Successfully migrated existing monolithic CPQ to Netcracker Cloud BSS- Improved performance of CPQ APIs by 50% from 1 to 0.5 secondsUsed technologies: Java, Springboot, Kubernetes, Docker, RabbitMQ, Postgres, Jenkins, Maven, JUnit, Mockito, Apache Nifi, GitLab

Led the team of 5 people to build new CPQ flow for ordering Fixed Internet for B2B.- Led the development of product E2E, identifiying system requirements and third-party dependencies, software implementation, testing, and configuring alarms, monitoring and dashboards- Designed and developed system that facilitate business to focus on selling FMC (converged fixed-mobile packages)- Scrum, TDD, SIG/Sonar code quality, code reviewsUsed technologies: Java, Spring, Oracle, Maven, GWT, HTML, CSS, JUnit, Mockito.

Worked on CPQ for ordering Mobile products.- Developed a handset widget that allows to select a desired device from a catalog by given customized parameters like color, installment plan, etc.- Built an APIs to transfer Quote state to SalesforceUsed technologies: Java, Spring, Maven, Oracle, Weblogic, GWT, HTML, CSS, SVN.

Worked on CPQ for ordering Mobile products.- Built a new rest APIs to allow Suspend or Resume Order Items in Sales Order- Developed a UI tool that provides a functionality to link existing products- Introduced an AOP logging mechanism to track critical information about system operation such as Sales Order Id, Customer Id so that we could find logs associated with specific Sales Order or CustomerUsed technologies: Java, Spring, Maven, Oracle, Weblogic, GWT, HTML, CSS, SVN, Jersey