Senior Java Consultant with PostgreSQL

Type of contract: B2B contract

Salary range: 125 - 160 PLN/H

What will you do?

You will work on large-scale financial services platforms supporting investment banking operations. The role focuses on digital transformation, process automation, data integration, and application modernization in a highly regulated environment while leveraging modern cloud technologies, microservices, and AI engineering tools.

Your tasks

• Design and develop backend services using Java and Spring Boot


• Build and maintain microservices-based solutions


• Develop and optimize integrations with PostgreSQL and Kafka


• Design and manage cloud-native solutions on Azure


• Implement and maintain Kubernetes and Terraform infrastructure


• Create and improve CI/CD pipelines in GitLab


• Develop automated tests and ensure software quality


• Collaborate with business and technical stakeholders


• Support application modernization and process automation initiatives

Requirements

• Strong experience with Java 17+ and Spring Boot 3+


• Experience with microservices-based architectures


• Good knowledge of PostgreSQL


• Experience with Kafka


• Strong knowledge of Azure services


• Experience with Terraform


• Experience with Kubernetes


• Experience with Databricks


• Practical experience with AI engineering tools including GHCP CLI


• Understanding of Generative AI concepts and frontier models


• Strong communication skills


• Domain knowledge of Stock Borrow Loan business


• Experience with JUnit 5, Mockito, Testcontainers or similar testing frameworks


• Understanding of structured context in codebases such as AGENTS.md and skills


• Experience with Helm


• Experience with GitLab CI/CD pipelines


• Openness to work hybrid from our client's office (Kraków) 3 days a week

Nice to have

• Splunk


• Grafana


• Application Insights