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Urgent! Senior Java Developer Position in Budapest - Randstad Hungary

Senior Java Developer



Job description


  • Flexible hybrid work, core hours 10:00–16:00

  • Choice of personal laptop

  • Small, senior team: low bureaucracy, high impact

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Organisation/Department

Our client is an innovative cybersecurity company working on products for the telecommunication and IoT industries.

They are currently building a new software development team in Budapest and are looking for a skilled Senior Java Developer to join their team.

Job description


  • Backend Development: You'll implement and optimize Spring Boot services, specifically using WebFlux and R2DBC/JDBC, to handle high volumes of data (thousands of messages per minute).

  • Database Management: You will be responsible for designing database schemas and writing efficient SQL for Postgres, as well as working with batch loaders.

  • API Development: You'll develop REST and GraphQL endpoints and contribute to gRPC/Protobuf contracts.

  • Testing and Optimization: A key part of the role is writing comprehensive unit and integration tests using JUnit 5 and Testcontainers, as well as profiling and tuning performance.


 

Requirements


  • Experience: You should have at least 5 years of professional Java experience, with a minimum of 3 years using Spring Boot.

  • Technical Skills: Asynchronous/reactive programming experience (WebFlux, Reactor, or RxJava) is a must-have, along with familiarity with messaging/streaming technologies like Kafka or MQTT.

  • Database & DevOps: Strong SQL and schema design skills are required, as is a basic understanding of Docker/Kubernetes and CI/CD pipelines.

  • Strong knowledge of written and spoken English.

Information

Réka Lukáts -


Tóth Boglárka - boglarka.eva.toth@randstad.hu 


Required Skill Profession

Computer Occupations



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