Java Developer with DevOps – Azure, Kubernetes, Kafka

Optiveum; Kraków; Hybrid; PLN 158,000 - 220,000; Full time

Job summary

Optiveum is seeking a Java Developer with DevOps experience to join a globally leading investment bank project. You will build and run high-performance Java applications on Azure, covering development and DevOps tasks such as containerisation, AKS, Helm and Terraform.

The role is hybrid in Kraków, with three days per week onsite at the client’s office. Ideal candidates have 5–10 years of experience, strong Java/Spring skills, and solid DevOps and messaging experience.

Qualifications

• 5–10 years of relevant experience in Java/DevOps roles.
• Proficient in Java with Spring Boot and Spring Security.
• Strong DevOps skills: containerisation, Kubernetes, Azure, AKS and Terraform.
• Messaging systems experience with Kafka and RabbitMQ.
• SQL and PostgreSQL expertise; familiarity with in-memory data grids (Apache Ignite, Hazelcast).
• Fluent English (technical and business).
• Polish or EU citizenship, or valid work permit for at least 12 months.

Responsibilities

• Develop and maintain Java (Spring Boot) applications for high-performance messaging systems.
• Build and integrate messaging solutions using Kafka and RabbitMQ.
• Containerise apps and deploy to Azure Kubernetes Service (AKS) with Helm.
• Manage cloud infrastructure as code with Terraform.
• Work with SQL/PostgreSQL databases and in-memory data grids.
• Tune performance and troubleshoot across environments.

Skills

Java

Spring Boot

Spring Security

DevOps

Kubernetes

Kafka

RabbitMQ

PostgreSQL

Ignite / Hazelcast

Performance tuning

English

Tools

Azure

AKS

Helm

Terraform

Job description

Optiveum is seeking a Java Developer with DevOps experience to join a globally leading investment bank project. You will build and run high-performance Java applications on Azure, covering development and DevOps tasks such as containerisation, AKS, Helm and Terraform.

The role is hybrid in Kraków, with three days per week onsite at the client’s office. Ideal candidates have 5–10 years of experience, strong Java/Spring skills, and solid DevOps and messaging experience.