Senior Java Engineer - Cloud-Native, Kafka & Blockchain

Ubique Systems

Kraków

On-site

PLN 180,000 - 280,000

Full time

6 days ago
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Job summary

Ubique Systems is seeking a Senior Java Software Engineer to develop reliable, scalable cloud-native applications for digital assets and blockchain projects. The role focuses on Java, RESTful services, Kafka, Kubernetes, Helm, secure development, leadership, and mentoring.

You will support the development team when issues arise and collaborate with stakeholders in English. The ideal candidate will have deep experience with Java-based microservices, modern DevOps practices, and a passion for

Qualifications

  • At least 5 years of Java experience.
  • Experience building cloud-native distributed systems with RESTful services and Kafka.
  • Hands-on Kubernetes and Helm experience.
  • Strong security awareness and attention to detail.
  • Excellent English communication.

Responsibilities

  • Design and develop reliable, scalable cloud-native Java applications.
  • Build RESTful services and Kafka-based event-driven solutions.
  • Deploy and support applications on Kubernetes using Helm.
  • Lead implementations and ensure high-quality, secure code.
  • Mentor junior developers and review code.
  • Collaborate with stakeholders in English.
  • Contribute to Ethereum-based blockchain and digital-asset projects.
  • Support the development team in diagnosing application issues.

Skills

Java
RESTful API
Kafka
Kubernetes
Helm
Security
DevOps
Cloud computing
English communication

Tools

Spring Boot
JPA / Hibernate
SQL

Job description

Ubique Systems is seeking a Senior Java Software Engineer to develop reliable, scalable cloud-native applications for digital assets and blockchain projects. The role focuses on Java, RESTful services, Kafka, Kubernetes, Helm, secure development, leadership, and mentoring.

You will support the development team when issues arise and collaborate with stakeholders in English. The ideal candidate will have deep experience with Java-based microservices, modern DevOps practices, and a passion for

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