Open to opportunities

Максим User

@user375

Message

I build scalable Java microservices, reactive systems, and high-performance enterprise integrations.

Ukraine

Message

I've built and scaled Java microservices for GO7, MK Consulting, Luxoft, and freelance clients, integrating distributed services into complex multi-tenant enterprise ecosystems. At MK Consulting, I reduced system response times by 40% through API and PostgreSQL performance tuning and deployed 10+ services through automated CI/CD pipelines.

I work across Java, Kotlin, Spring Boot, Kafka, PostgreSQL, Kubernetes, gRPC, and reactive architectures. I also mentor engineers, lead code reviews, improve testing practices, and share domain knowledge to make teams faster and systems more reliable.

Experience

Work history, roles, and key accomplishments

Java Software Engineer

GO7

Sep 2025 - Sep 2026 (1 year)

Architected and engineered scalable microservices, integrating them into a multi-tenant corporate ecosystem. Orchestrated synchronization between legacy systems and new distributed architecture, migrated components to reactive execution, and optimized testing frameworks.

Java Microservices Kafka Reactive Programming Cucumber CI CD Kubernetes PostgreSQL

Java Software Engineer

Independent Software Engineer / Freelance

May 2025 - Sep 2025 (4 months)

Designed and engineered scalable backend services and REST APIs using Java and Kotlin. Implemented gRPC services, event-driven architectures with Kafka, and optimized PostgreSQL performance.

Java Kotlin REST APIs gRPC Protobuf Kafka PostgreSQL Liquibase Kubernetes Elasticsearch Kibana

Java Software Engineer

MK Consulting

Feb 2023 - Feb 2025 (2 years)

Engineered and scaled high-load microservice architectures using Java, Kotlin, Spring Boot, and Kafka. Spearheaded performance tuning, reducing system response times by 40%, and automated CI/CD pipelines for 10+ services.

Java Kotlin Spring Boot Kafka PostgreSQL CI CD Microservices

Java Software Engineer

Luxoft

Jul 2021 - Feb 2023 (1 year 7 months)

Engineered and optimized backend RESTful APIs and microservices using Java, Spring, and PostgreSQL, focusing on system stability and data consistency.

Java PostgreSQL REST APIs Microservices