Senior Java Backend Engineer – Kafka, Kubernetes & Cloud

Ubique Systems; Kraków; Hybrid; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Hybrid work model

Contract employment

Job summary

Ubique Systems in Kraków seeks a Senior Java Software Engineer to build scalable cloud-native Java apps for blockchain-related projects. You will work with Java, REST, Kafka, Kubernetes, and Helm, while mentoring teammates and ensuring secure code quality.

The role emphasizes collaboration with English-speaking stakeholders and a strong focus on cloud computing, DevOps, and distributed systems.

Qualifications

• Senior Java Software Engineer with 5+ years of Java experience.
• Experience building cloud-native Java applications with RESTful services and Kafka-based event-driven architectures.
• Hands-on Kubernetes and Helm experience; secure, high-quality code.

Responsibilities

• Design and develop reliable, scalable cloud-native Java applications.
• Build RESTful services and Kafka-based solutions.
• Deploy and support apps on Kubernetes using Helm.
• Lead implementations and code reviews, mentoring juniors.

Skills

Java

Kafka

REST APIs

Kubernetes

Helm

Security

Cloud-native

English

Tools

Spring Boot

JPA/Hibernate

JUnit

Maven/Gradle

Docker

Git

Job description

Ubique Systems in Kraków seeks a Senior Java Software Engineer to build scalable cloud-native Java apps for blockchain-related projects. You will work with Java, REST, Kafka, Kubernetes, and Helm, while mentoring teammates and ensuring secure code quality.

The role emphasizes collaboration with English-speaking stakeholders and a strong focus on cloud computing, DevOps, and distributed systems.