Grigory Domozhirov Email & Phone Number

Russia

Project: Distributed, high-loaded, fault tolerant data grid with stream processing features. Leading development from empty repository to production and L3 support.Achievements gained: - 600K writes per second - Fault tolerance - Horizontal scaling - Auto-recovering - 6 times lower memory consumption compared to previous version - Advanced administration and monitoring - No production issues throughout period 1.5 yearsResponsibilities: - Designing architecture, API and protocols (in collaboration with colleagues) - Decomposing the tasks, setting priorities - Configuring Apache Kafka, Apache Ignite, Apache Zookeeper - Configuring project assembly and distribution with Maven, GitlabCI, Docker, Docker-compose - Implementing various data source adapters, stream processing module, efficient store writer, reactive web endpoints - Implementing authentication & authorization with Spring Security, JWT, LDAP and custom Kafka plugin in Kotlin - Implementing maven plugin for code generating - Configuring advanced monitoring and administrating tools with custom metrics, Prometheus, Grafana, Kowl, Zoonavigator and JMX - Writing unit-tests (50% code coverage) - Writing technical documentation - Supporting and evolving previous solution using Scala, Akka (http, cluster)Technologies: Spring (boot, webflux, jdbc, security, actuator, cloud configuration), Apache Kafka, Apache Ignite, Apache Zookeeper, Prometheus, Grafana, Docker, Docker-compose, Kubernetes, Scala, Akka (http, streams, cluster), antlr.

Москва, Россия

Big Data project on top of Hadoop and Apache Ignite for fast search by fingerprint.Responsibilities: - Implementing distributed priority queue for effective Ignite compute cluster utilization with Zookeeper, Curator and HBase - Setting up CI/CD with Docker and GitlabCI - Designing and implementing REST API with Spring and Tomcat - Implementing data access with Spring Data JPA - Configuring secure access to Jetty web server - Implementing parts of middleware subsystem with RabbitMQ, MyBatis, Spring AOP, Webflux, Liquibase, PostgreSQL - Writing unit-tests - Performing code reviewsTechnology and Skills: HBase, Apache Ignite, Apache Tomcat, Apache Zookeeper + Curator, Spring (web, webflux, data, jdbc), Jetty, Docker, RabbitMQ, Liquibase, MyBatis, Hibernate

Москва, Россия

Projects including: CCTV, java plugin framework, air & underwater security systemsResponsibilities: - Hiring junior developers - Managing team of 4 developers - Designing system architecture - Designing and implementing reactive video processing kernel - Designing library interfaces - Implementing 3D desktop client module with JMonkey - Implementing key thread-safe components - Developing sonar data recongnition and processing module - Implementing plenty of Swing & JavaFX desktop applications - Implementing plugin framework with proper ClassLoader manipulation

Москва, Россия

CCTV system: IP-cameras integration, hardware acceleration, video playback functions, desktop clients.Responsibilities: - Integrating IP-cameras of various types incl. SOAP, REST and custom binary protocol based - Accelerating video processing with OpenGL & shaders - Implementing desktop client components with Swing - Implementing video archive player - Writing unit-test, performing code reviewsTechnologies: Swing, JavaFX, Reflection API, JNI/JNA, C/C++, StAX, OpenGL + Shaders, Spring, SOAP, Rest, Plain TCP, BerkeleyDB, Subversion, Gradle