Along with performance improvement of the core use-cases for the ordersprocessing for 30%, I’ve migrated build, testing, release pipelines fromJenkins to Google Cloud Builds. This reduced the time of entire CIworkflow for delivery of a single change from 1h to only 15min.I’ve also proposed, implemented and delivered improvements in code forbetter integration with Google Cloud infrastructure:• Metrics publishing via Prometheus and Google Cloud Metrics Explorer• Build test reports availability via Google Cloud Buckets• Automation for the infrastructure setup for E2E tests execution basedon docker-compose, triggered by creation of the Pull Request for thenew Git branch.

While working at google I participated in many projects. I got promoted with the highest possible efficiency rate by delivering a mission critical project for the datacenters startup automation. While most of the code I wrote is in Java I also managed to become proficient in Go language. Being an SRE I’ve gained a lot of valuable experience with incidents handling, monitoring and alerting.

After I started as Senior Java developer I got promoted twice and i'm currently holding Senior Team Lead position. Being part of the largest car dealer in a Europe I got a chance to contribute to many valuable business cases, improving it or extending within the new functionality.My prime focus is the backend which is represented by a huge distributed system built according to the best micro-services practices in a cloud environment (AWS). As for the business functionality the most important piece delivered by my team was the set of mission critical services processing the most critical workflow of bids creation for our internal bidding platform of used cars - the core business of the company. As per the definition, this part of a distributed system has to be the most reliable one as it defines the prime money income flow for the entire business while it is important to keep it flexible, so it is designed in the way that time to live for any new feature or change of existing one is minimal. This was achieved not only with strong technical decisions but also by applying the best delivery / testing automation practices.While this is the most important unit in delivery of which I participated, there are a lot of other I got a chance to contribute on implementation / design / delivery / maintenance phases such as:- smooth migration of >100 micro-services from the first spring cloud version of the release train angel to the brixton- integration internal Oauth service with google SSO- password brute force protection mechanism based on redis cache- extension to the Spring-Data framework to support readonly repositories connected to the database replicas- an internal metrics framework based on spring-metrics implementing the producer for dataflow passing metrics in statsd format to influxDB over telegraf with kapacitor and grafana as clients for alerting and visualisation- failover automation for service discovery (consul) integration.- and many other...

development of the application’s server-side part, incidents resolution, tasks estimation, coordination of the development process, development of different parts of the application.Technical Summary: Java, Spring, Tomcat, Oracle Coherence, Oracle Database

Took part in planning; solution design; developed different parts of web application both server and client side.Technical Summary: Java, Javascript, Spring WebFlow, JAXB 2.1, JSF, Icefaces, Hibernate, JUnit, XMLUnit, DBUnit, IBM Omnifind API, IBM WebSphere, Oracle Database

Development of a billing system for VOIP service.Technical Summary: Seam 2, jsf, richfaces, facelets, ejb3, hibernate, python, openVZ, jbossas, postgresql, svn, git