Руслан

RUSLAN KRYLOV
JAVA DEVELOPER

ABOUT ME:
A software developer with 4 years of Java development experience,
looking for new opportunities for development and career growth

CONTACTS:
[відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @orbit419
LinkedIn: Ruslan Krylov
[відкрити контакти](див. вище в блоці «контактна інформація»)
Kyiv, Ukraine
Age: 28

SKILLS:
● Strong knowledge in OOP, Java, Design Patterns, Microservice Architecture
● Spring (Core, MVC, Security, Boot, Data), Hibernate, Kafka/RabbitMQ, REST, AWS,
ElasticSearch
● JUnit, Mockito, Spock, TestContainers
● SQL(Oracle, MySql, Postgres), NO-SQL(Redis, Cassandra, MongoDB)
● Git, Maven, Gradle, Docker, Kubernetes, Jenkins
● English: Intermediate

EXPERIENCE:
2024.02 - 2024.09 - Java Developer, Proizd.ua
Project: Service for purchasing tickets for trains and buses
Technologies used: Java 17, Spring (Core, MVC, Security, Boot, Data), Kafka, Maven, ElasticSearch,
Jenkins, ELK (Kibana, Logstash, Elastic), DBs: Postgres, Redis, MongoDB

The project was a service for purchasing tickets for bus and train routes throughout Ukraine. I was involved
in the development of a new version of the project, which included the development of functionality, testing,
integration with API of the service providers and migration to a new payment system

2021.08 - 2023.01 - Java Developer, GlobalLogic
Project: Security platform for business communications
Technologies used: Java 15, Spring (Core, MVC, Security, Boot, Data), RabbitMQ, Maven, AWS Services,
ElasticSearch, Bamboo, ELK (Kibana, Logstash, Elastic), DBs: Oracle, Postgres, Redis, Cassandra

A security platform that analyzes all messages in employee accounts on social networks, instant
messengers, and email services to identify:
1) violations of the company’s compliance rules in internal and external communications;
2) fraud attempts or cybersecurity threats such as social engineering, phishing, impersonation, and
many others.
I was participated in product support, development of new functionality, and migration of the project to an
event-based microservice architecture
2019.04 - 2021.03 - Java Developer, CyberVision

Project: Big Data Framework
Technologies used: Java 8, Tomcat, ZooKeeper, Jetty, Jersey, Maven, Ant, TeamCity; DB:
MariaDB, Postgres

The project was a huge framework for processing large amounts of data, based on the
MapReduce technology, which consists of many components. I was involved in maintaining 5
components, two of which I managed on my own, and another component was fundamental in
this ecosystem. My responsibilities included: fixing bugs, implementing new features requested
by the customer, expanding old functionality, solving problems with the compatibility of different
components when switching to new versions.

Project: KaaIoT (IoT Project)
Technologies used: Java 8, Spring (Core, MVC, Security, Boot), Kafka, Nats, JUnit, Maven,
Gradle, Kubernetes, Jenkins; DB: Postgres, Cassandra, Redis

IoT project — a system for managing industrial and logistics equipment for collecting and analyzing data in
real time. The essence of the project was to develop a new version of the system from scratch with
migration to microservices. I participated in the migration of other projects to the new version of the system,
while simultaneously supplementing the new system with the functionality necessary for other projects. My
work also included creating emulators for full testing of the system in the Kotlin language

EDUCATION:
Java Course, Mate Academy, 2019

Kiev National University of Trade and Economics
International Economics, Bachelor Degree
2016-2020, Kyiv