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Etien Haskocelaj

@etienhaskocelaj

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Java Backend Developer at Engineering Albania building Spring Boot services and Kafka event-driven microservices.

Albania

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What I'm looking for

I'm available as an independent B2B contractor for fully remote work. I'm based in the CET timezone and have experience delivering remotely for a client abroad.

At Engineering Albania, I develop and maintain production Spring Boot services on an enterprise platform running in OpenShift. I implement event-driven communication between microservices with Apache Kafka and maintain Jenkins CI/CD pipelines through deployed releases.

At Full Screen Digital, I designed, built, and extended Spring Boot REST APIs for a fully remote client. I worked across Oracle DB and PostgreSQL on schema changes, query tuning, JPA mappings, and data migrations.

I also built Slottify, a multi-tenant appointment scheduling API secured with Keycloak. It includes tenant isolation, booking-conflict detection, PostgreSQL migrations, and JUnit 5 and Mockito tests.

Experience

Work history, roles, and key accomplishments

Current

Java Backend Developer

Current

Engineering Albania

Jun 2025 - Present (1 year 3 months)

Develop and maintain Spring Boot backend services in a production enterprise environment. Implement event-driven communication between microservices using Apache Kafka and own Jenkins CI/CD pipelines.

Java Spring Boot Kafka Junit Mockito Jenkins OpenShift CI CD

Java Backend Developer

Full Screen Digital

May 2023 - Jun 2025 (2 years 1 month)

Designed, built and extended REST APIs on Spring Boot 3.0 with Hibernate 6.1. Worked across Oracle DB and PostgreSQL, containerised services with Docker, and managed builds with Maven.

Java Spring Boot Hibernate REST APIs Oracle DB PostgreSQL Docker Maven Git

Java Backend Developer

Forword

Nov 2022 - May 2023 (6 months)

Built and modified REST APIs using Spring Boot, Spring Security, Spring Data and Hibernate. Implemented asynchronous service-to-service messaging with Kafka through Spring Kafka.

Java Spring Boot Spring Security Spring Data Hibernate Kafka Docker Maven PostgreSQL Gitlab

Java Software Developer

Fiber

Sep 2021 - Nov 2022 (1 year 2 months)

Developed Java and Spring Boot applications backed by MySQL databases. Tested and documented APIs with Postman and tracked delivery in Jira within an agile team.

Java Spring Boot MySQL Postman Jira Agile