Олександр

Oleksandr Lazarchuk
Big data analytics and data scraping.
Croatia

Summary
I'm a certified backend developer on Java, Scala.
8 years with Java and 4.5 years with Scala.
My commercial experience is more a decade on: Java, Scala,
Contact
Python. And I have experience work on AWS Services.
[open contact info](look above in the "contact info" section)
Now I continue promote technical skills with AWS Cloud Services
[open contact info](look above in the "contact info" section) and preparing to AWS Certified Developer.
lazarchuk (LinkedIn)

Experience
Top Skills
Technical Solution Design Intsurfing
Code Review Big Data Engineer
October 2022 - November (2 year 2 months)

Certifications Program language: Scala, Python, SQL.

Scala Programming Software technologies: Spark, Hive.

Introduction to Java EE Cloud technologies: Databricks/AWS, S3, EC2, OpenSearch, Delta Lake,
Athena, Notebook, Airflow/Prefect/Terafform.
Tool solutions: Hadoop, Hive, Spark, ELK (Elasticsearch,Logstash,Kibana),
Manticore, Docker/Kubernetes, Sonar.
Role: Codebase optimized, implementation of new functional and analysis of
data analysis.

SmartTrader
Senior Java Software Engineer
January 2022 - September 2022 (9 months)
Program language: Java, SQL.
Software technologies: Spring, Kafka, Mongo/Postres.
Cloud technologies: AWS Services (S3, OpenSearch).
Tool solutions: MongoDB, PostreSQL, Kafka, Docker/Kubernetes.
Role: make implement and provide support web services with high overload.

CARTSYS LLC
Senior Java Engineer, Head of Software Development Department
August 2018 - December 2021 (3 years 5 months)

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Specific tool for payment wallets on bank industry
Program language: Java, Scala, SQL.
Software technologies: Spring Framework, Akka Framework, JPA/Hibernate,
JMS (ActiveMQ), LDAP, Node.JS, Angular, Bootstrap.
Tool solutions: Jboss Wildfly, Hardware HSM-module, Gitlab.
Role: Development of secure and high-performance solutions based on a
SafeNet.

GUP
Senior Java/Scala Software Engineer
May 2016 - August 2017 (1 year 4 months)
Program language: Java, Scala, SQL.
Software technologies: Spring Framework, Akka Framework, Slick ORM, JPA/
Hibernate, PL-SQL, Node.JS, Angular.
Role: Development and implementation of services with a high loading system.
Migration to Scala.

PrivatBank
Software Java/J2EE Engineer, Head of Technical Support Department
July 2012 - May 2016 (3 years 11 months)
Program language: Java, SQL.
Software technologies: J2EE, Spring Framework, JPA/Hibernate, JMS, JSP,
Vaadin.
Tool solutions: Apache Tomcat, Microsoft EAS, Jenkins, Gitlab, VM VirtualBox,
VMware ESXi.
Role: To extend API-Privat24 and provide support for a fintech product in
PrivatBank. Administrate CI/CD Systems.

GeeksForLess Inc.
Java/J2ME Engineer
January 2007 - May 2008 (1 year 5 months)
Mobile Development Platforms
Program language: Java
Software technologies: J2ME SDK, MIDP, program multimedia with JMF.
Role: Mobile games adaptation on mobile devices.

Ruby on Rails Developer
Program language: Ruby, SQL.
Software technologies: MySQL, RoR web development.
Role: API develop for server.

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Education
ITEA
Scala Programming · (September 2021 - November 2021)

National Technical University of Ukraine 'Kyiv Polytechnic Institute'
Design Pattern Programming · (May 2016 - September 2016)

Admiral Makarov National University of Shipbuilding
J2EE Specification · (October 2011 - July 2012)

Ukraine Institute of Scientific-Technical and Economic Information
Information Technology · (2006 - 2007)

Open International University of Human Development 'Ukraine'
Bachelor's degree, Computer Engineering / Computer Systems and
Networks · (2000 - 2005)

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