Senior Backend Engineer - Java Microservices & AI-Driven

GFT Technologies SE; Kraków; On-site; PLN 251,000 - 385,000; Full time

Job summary

GFT Technologies SE is seeking an experienced software engineer to join a large-scale enterprise transformation in Kraków. You will design, develop, integrate, and support Java microservices while applying AI-enabled development practices in a regulated environment.

You will work with architects, QA, SRE, and platform teams to deliver secure, scalable services. The role requires hands-on development in Java and Python, with strong database experience and modern CI/CD workflows.

Qualifications

• Requires at least 8 years in software engineering in enterprise environments.
• Experience with Java microservices and Spring Boot in large-scale systems.
• Strong knowledge of databases (Oracle or PostgreSQL) and testing practices.

Responsibilities

• Build, test, release, and support Java microservices and related components.
• Contribute to solution design aligned with target architecture and non-functional requirements.
• Follow CI/CD practices and quality controls; participate in code and security reviews.

Skills

Enterprise-scale experience

Testing discipline

AI-assisted engineering awareness

Tools

Java microservices(Spring Boot)

Python development

Oracle/PostgreSQL

JUnit/Mockito/Testcontainers

Azure cloud

CI/CD pipelines

Job description

GFT Technologies SE is seeking an experienced software engineer to join a large-scale enterprise transformation in Kraków. You will design, develop, integrate, and support Java microservices while applying AI-enabled development practices in a regulated environment.

You will work with architects, QA, SRE, and platform teams to deliver secure, scalable services. The role requires hands-on development in Java and Python, with strong database experience and modern CI/CD workflows.