Artur

Artur Mokriak
Senior Java developer
Kyiv, Ukraine / [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
https://github.com/artur-mokriak

Professional Summary:
Senior Java Developer with 12+ years of experience designing and leading scalable, high-performance software
solutions. Expert in Java, Spring Boot, Quarkus and real-time data pipelines, with a strong background in
microservices, RESTful APIs, and Oracle databases. Proven technical leader in Agile environments, adept at optimizing
applications, mentoring teams, and delivering complex projects in financial and payment systems.

Key Skills:
Languages & Frameworks: Java 17/21, SQL, PL/SQL, PL/pgSQL, Spring Boot 3+, JDBC, Hibernate, Quarkus 3+, Kafka,
RESTful APIs, JUnit, Mockito
Databases: Oracle 12, PostgreSQL 14, Redis
Tools: IntelliJ IDEA, Git, Maven, Kubernetes, Docker, GitLab(CI/CD), JIRA
Concepts: Microservices, Reactive Programming, Concurrency, Multi-threading, Batch Processing, DWH, RDBMS
(SQL), TimeSeries, Agile (Scrum)
Specialties: Data Streaming, SQL Tuning, Design Patterns (SOLID), DRY, KISS, GoF

Professional Experience:
Senior Java Developer
Slotegrator, Czech Republic, Praha
June 2022 – October 2024
Led creation of payment and transaction microservices with Spring Boot and Kafka, improving scalability.
Built real-time data pipelines using Kubernetes and PostgreSQL for high-volume transactions.
Improved Java application speed, with concurrency and SQL tuning.
Guided team, reviewed code, and used CI/CD tools.
Tools: Java, Spring Boot, Quarkus, Hibernate, Kafka, Redis, RESTful APIs, PostgreSQL, Git

Java Developer
Overonix Technologies, Kyiv, Ukraine
March 2021 – November 2021
Developed a B2B payment platform with Spring and Oracle, adding RESTful APIs for payment options.
Increased system speed with batch processing and database tuning.
Supported Agile releases with Kubernetes and AWS.
Tools: Java, Spring, JDBC, Oracle, SQL, Microservices, RESTful APIs

Java and PL/SQL Developer
Sportmaster Ukraine, Kyiv, Ukraine
July 2019 – March 2021
Designed a 24/7 electronic archive database with Oracle and Java for document storage.
Created RESTful and SOAP web services for large datasets (JSON, XML).
Boosted performance using concurrency and SQL Tuning.
Tools: Java, JDBC, Oracle, PL/SQL, SOAP, RESTful APIs

Java Software Engineer
Scalors GmbH (Pharma Mall GmbH), Kyiv, Ukraine
August 2018 – May 2019
Built a data processing platform with Spring Boot and Oracle for ERP systems.
Developed near real-time solutions with JMS and RESTful APIs.
Tools: Java, Java EE, Spring Boot, JDBC, Oracle, SQL, RESTful APIs, JSF, PrimeFaces – UI Framework

Java and Oracle Developer
Luxoft (Deutsche Bank), Kyiv, Ukraine
October 2012 – March 2014
Delivered real-time regulatory reports for Deutsche Bank USA using Java and Oracle.
Cut processing time with JMS and PL/SQL tuning.
Tools: Java, Oracle, PL/SQL, XML/XSLT, JMS
Education:
Specialist in Software Engineering
Odessa National Polytechnic University, Odessa, Ukraine
Graduated: 2006

Certifications:
Luxoft training center:
Design Patterns (GoF) for Java;
Defect Management;
Interaction with DBMS from Java Applications through JDBC Technology;
Java SE 7;
Basics of Financial Markets. Investment Banking;
Advanced Use of XSD;
Informatica PowerCenter 8.6;

Borlas Ukraine Education Center Course:
Oracle Database 11g: Administration Workshop;
Oracle Database 11g: Advanced PL/SQL;
Oracle Database 11g: Develop PL/SQL Program Units;
Oracle Database 11g: SQL Tuning Workshop

Additional Information:
Languages: English (speaking - pre-intermediate, reading/writing - intermediate), Ukrainian (Native)
Availability: Immediate
Work type: Remotely