Andrew

ANDRII KORZHOV
Java Developer
​ [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) ​ Kyiv

SKILLS SUMMARY

Java 25 Spring Boot 3 JUnit 5 Java Software Engineer 6 years of commercial experience in IT. Proficient in Java and its
ecosystem of frameworks. Experienced in collaborating with cross-functional teams,
PostgreSQL MySQL Liquibase/Flyway communicating with stakeholders, and leading the delivery of epics. Demonstrating
enthusiasm and possessing strong analytical skills, I thrive as a collaborative team player
PL/SQL T-SQL
with a keen focus on developing impactful software solutions.
AWS(S3, Lambda, Secrets, Kinesis) Docker

Kubernetes GIT RabbitMQ Kafka EXPERIENCE
ELK stack Redis/Caffeine UML
Java Developer 06/2024 - 03/2026
Design patterns Atlaslive iGaming Platform Location

Technologies: Java 25, Spring Boot 3, Spring Cloud, JPA, PostgreSQL, Liquibase, JUnit,
Testcontainers, RabbitMQ, AWS S3, Vault, Git, GitLab CI, Docker, Kubernetes, Grafana,
EDUCATION Datadog, OpenSearch
• Integrated payment methods via various providers for key partners
Computer Science • Implemented event-driven communication via RabbitMQ, with a notification service
consuming events and sending them through WebSockets and to Google Analytics
PJATK
• Resolved critical production incidents during on-call rotations, including mitigating
09/2014 - 06/2018 Warsaw, Poland malicious callback overload attempts, helping prevent downtime and financial losses for
• Master's Degree the company
• Optimized database indexing to reduce latency by 30–35% on a high-traffic endpoint
Computer Science • Proposed and implemented data protection improvements by masking sensitive
information in system logs
Taras Shevchenko National University • Contributed to the migration of the payment gateway to a new architecture based on the
09/2014 - 06/2018 Kyiv, Ukraine State Machine pattern, improving performance, maintainability and simplifying production
debugging, investigation
• Bachelor's Degree
• Implemented asynchronous payments bulk update using Virtual Threads. 10k+ payments
per request
• Implemented an internal P2P payment provider with payment proof support
CERTIFICATIONS
Java Developer 10/2023 - 06/2024
IELTS 6.5
GlobalLogic Location
British Council
Technologies: Java 11, Spring Boot 2, MySQL, Flyway, AWS(S3, Lambda), Jenkins, Kafka
Hybrid cloud environment.
LANGUAGES • Enhanced code quality and test coverage
• Documented APIs for internal and external use
Ukrainian Native • Designed UML diagrams (block & sequence)
• Developed new API features per business requirements
English Proficient
Java Developer 02/2021 - 09/2023
German Beginner Sigma Software Location

Polish Intermediate Technologies: Java 11, Spring Boot 2, AWS(S3, Kinesis, Secrets), MySQL, Flyway, Spinnaker,
Docker, Elasticsearch, GraphQL, Amazon DynamoDB
Project focused on building a microservices-based Disney Streaming Ad Platform for a
INTERESTS streaming service.
• Built a microservice from scratch using Spring Batch with parallel processing and
Computer games optimized job configuration, significantly improving data processing throughput under
high load
• Developed an HTTP PATCH interface following RFC 6902
Football • Actively contributed to the implementation of a CQRS-based architecture separating write
(MySQL) and read (Elasticsearch) models
Hockey • Led API versioning efforts in collaboration with client-side technical architect. Covered by
tests using Pact testing
Movies
Junior Java Developer 02/2020 - 02/2021

Serials Sigma Software Location

Technologies: Java 8, JDBC with custom ORM, Struts, Jenkins, Docker, ReactJS, AWS
Tennis services.
High-traffic nationwide grocery delivery platform serving customers across the USA
Traveling • Used PRD and TDD documentation for features, providing structured guidance for
implementation and estimation
• Integrated couriers delivery API. Testing by ngrok
• Verified API communication using HMAC
• Developed a state transition diagram for order flow