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Gábor Bozsik

@gborbozsik

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Experienced backend developer specializing in Java microservices and cloud-native systems.

Hungary

Message

What I'm looking for

I seek backend or cloud-native engineering roles where I can build resilient Java microservices, work with Kubernetes-based CI/CD, and contribute to high-performance teams focused on scalable financial or telecom systems.

I am a backend-focused software developer with extensive experience building Java-based microservices, cloud-native deployments and RESTful APIs for financial and telecom clients. I have contributed to migrations, platform support and production-grade services using Spring Boot, Kubernetes and container ecosystems.

I've worked as a contractor on projects for BlackRock, OTP Bank and Telekom HU, delivering backend microservices, CI/CD automation and integration with databases such as Oracle, PostgreSQL, Cassandra and MSSQL. I also have full‑stack experience through several parallel projects using React, Vue and mobile-focused stacks.

My strengths include designing resilient microservice architectures, implementing reactive and synchronous services (Spring Reactor, Webflux, Akka), and operating systems in Docker, Kubernetes/OpenShift with tooling like Helm, Argo CD, Jenkins and Git-based CI platforms. I pair strong backend engineering with practical database and messaging experience, including Kafka and JOOQ.

Outside of software I bring the discipline, teamwork and high-performance mindset developed as a long-term professional athlete and Hungarian national team member; I apply that same focus to delivering high-quality software under demanding timelines.

Experience

Work history, roles, and key accomplishments

Backend Developer

OTP Bank

Aug 2022 - Jan 2024 (1 year 5 months)

Built Spring Boot microservices and containerized platforms using Docker, Kubernetes and OpenShift; integrated Oracle and MSSQL databases and CI/CD pipelines.

Java Spring Boot Docker Kubernetes OpenShift Oracle MSSQL Jenkins

Full Stack Developer

JoinSwapp

Jan 2023 - Jul 2023 (6 months)

Developed long-term car rental website and mobile app using Kotlin backend and React/TypeScript frontend with Postgres and CI/CD on AWS.

Kotlin React TypeScript Postgres JOOQ AWS CI CD

Backend Developer

BlackRock

Nov 2021 - Aug 2022 (9 months)

Implemented cloud-native backend services with Spring Boot, Docker and Kubernetes, using Helm, Argo CD and Azure for deployments.

Java Spring Boot Docker Kubernetes Helm Argo Azure OpenShift

Software Developer

Telekom HU

Jan 2021 - Oct 2021 (9 months)

Developed microservice architecture using Kotlin and Reactive Spring Boot, deployed on Kubernetes with MongoDB-backed services.

Kotlin MongoDB Kubernetes Docker Gradle Helm

Software Developer

Alvicom

Nov 2018 - Jan 2021 (2 years 2 months)

Delivered file processor and testing tool applications using Spring Boot, JPA/Hibernate, Vaadin and PostgreSQL/Oracle; containerized with Kubernetes and Docker.

Spring Boot JPA Vaadin PostgreSQL Oracle Kubernetes Docker Liquibase

UAT / IT Tester

Alvicom

Mar 2017 - Nov 2018 (1 year 8 months)

Executed test cases, recorded defects and retested development packages using HP Quality Center for banking projects.

Manual Testing HP Quality Center Retesting

Backend Developer

BlackRock

Jan 2024 - Present (2 years 5 months)

Developed backend services for Dynamics migration and Teamworld support, implementing Java/Spring Boot microservices and integrations across Sybase and MSSQLDB.

Java 8 Spring Boot REST WildFly Sybase MSSQL