Senior Java Engineer: Microservices & DevOps Leader

GFT Technologies SE; Kraków; On-site; PLN 163,000 - 249,000; Full time

Job summary

GFT Technologies SE in Kraków is seeking a Senior Java Engineer to design, develop, and maintain modern microservices-based applications using Java 17/21 and Spring Boot.

You will contribute across the full development lifecycle, mentor peers, support production systems, and drive DevSecOps practices while collaborating with QA and business teams to deliver robust, scalable solutions.

Qualifications

• 4+ years of hands-on Java development.
• Experience designing and developing microservices with Java 17/21 and Spring Boot.
• Strong knowledge of PostgreSQL.
• Experience with DevSecOps pipelines.
• 3+ years in Agile and/or DevOps teams.
• Experience using TDD and JUnit.
• Experience creating integration and regression tests.
• Ability to work across the full SDLC.
• Strong analytical and problem-solving skills.

Responsibilities

• Design, develop, and maintain Java-based microservices.
• Contribute across the full software development lifecycle.
• Support production systems and monitor incidents.
• Mentor junior team members and share knowledge.
• Drive DevOps adoption and automation.
• Translate business requirements into scalable technical solutions.
• Collaborate with QA and business teams to deliver high-quality software.
• Improve development processes and team velocity.

Skills

Java development

Microservices

Java 17/21

Spring Boot

PostgreSQL

DevSecOps

Agile/DevOps

TDD

JUnit

Integration tests

Full SDLC

Requirements translation

Analytical skills

Job description

GFT Technologies SE in Kraków is seeking a Senior Java Engineer to design, develop, and maintain modern microservices-based applications using Java 17/21 and Spring Boot.

You will contribute across the full development lifecycle, mentor peers, support production systems, and drive DevSecOps practices while collaborating with QA and business teams to deliver robust, scalable solutions.