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@aleksandrauser7

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Backend Developer at IT Universe who cut a PostgreSQL workflow from 90 seconds to 1–2 seconds.

Israel

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At IT Universe, I developed and maintained Java and Spring Boot services in a production microservices environment. I coordinated a legacy application migration across 15 modules and upgraded services from Java 11 to Java 21.

I moved business logic into PostgreSQL to optimize a critical data-processing workflow, reducing execution time from about 90 seconds to 1–2 seconds. I also integrated AWS S3 file storage and supported RabbitMQ queues with error handling and retries.

At RADIUS IT, I developed backend modules for SCADA and industrial data-processing systems using Java 8 and Java EE. I also contributed to multithreaded processing and built a React-based graphical editor for creating and editing industrial SCADA diagrams.

Experience

Work history, roles, and key accomplishments

Backend Developer

IT Universe

Jan 2024 - Jan 2026 (2 years)

Developed and maintained Java/Spring Boot backend services in a production microservices environment. Coordinated migration of a legacy Spring application to Spring Boot across 15 modules and optimized a critical workflow reducing execution time from ~90 seconds to 1-2 seconds.

Java Spring Boot PostgreSQL S3 RabbitMQ Docker Compose Jenkins Git Linux SSH CI CD

Backend Developer

RADIUS IT

Jan 2022 - Jan 2024 (2 years)

Developed backend modules for SCADA and industrial data-processing systems using Java 8 and Java EE. Implemented message-driven components with RabbitMQ and Kafka and contributed to multithreaded data processing and performance optimization.

Java Java EE RabbitMQ Kafka Multithreading React SCADA Performance Optimization