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GFT Technologies SE

Senior Java Consultant with PostgreSQL

GFT Technologies SE Krakow, Lesser Poland Voivodeship, Poland · PLN 260K–PLN 333K/yr

IT Services and IT Consulting · 10,001+ employees

19 h ago
java Senior (5-10 yrs) Contractor Poland
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About the role

You will design and develop backend services for financial platforms while managing cloud-native infrastructure and microservices. The role involves optimizing data integrations, maintaining CI/CD pipelines, and supporting application modernization initiatives.

What they look for

Java 17+ Spring Boot 3+ PostgreSQL Kafka Azure Terraform Kubernetes Databricks AI engineering Generative AI GitLab CI/CD Helm Microservices JUnit 5 Mockito Testcontainers

Requirements

Candidates must have strong experience with Java 17+, Spring Boot 3+, and microservices-based architectures. Proficiency in PostgreSQL, Azure services, Terraform, Kubernetes, and AI engineering tools is required.

Full description

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

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