KubeCraftJobs

DevOps & Cloud Job Board

Senior Java Consultant with Kafka 1

GFT TECHNOLOGIES

30-302 Kraków

On-site
Senior
Freelance
Posted January 07, 2026

Tech Stack

java kafka spring spring-boot postgresql oracle mongodb jenkins gitlab gitlab-ci docker kubernetes prometheus google-cloud-platform

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Job Description

**Type of contract:** B2B contract **Salary range:** 125 PLN/h - 163 PLN/h gross **What will you do?** - Design, develop, and maintain backend services using Java (Spring Boot) - Implement and optimize Kafka-based messaging solutions (producers, consumers, schema evolution, topic management) - Participate in DevOps-related tasks: CI/CD pipelines, environment configuration, monitoring, and deployment automation - Cooperation with relational and non-relational databases (e.g., PostgreSQL, Oracle, MongoDB) - Collaborate closely with business stakeholders to clarify requirements and translate them into technical solutions - Drive and participate in architecture discussions, code reviews, and technical planning - Proactively identify and solve issues across the delivery lifecycle **Your Skills** - Strong knowledge of Java and the Spring ecosystem - Solid hands-on experience with Apache Kafka in a production environment - Familiarity with DevOps practices, tooling (e.g., Jenkins, GitLab CI, Docker, Kubernetes) - Practical experience with relational databases and understanding of performance tuning - Excellent problem-solving skills and ability to independently lead technical topics - Experience working in distributed teams and agile methodologies (Scrum, Kanban) - Strong communication skills in English, both written and verbal **Nice to Have** - Experience in the financial/banking domain - Exposure to Real-Time Payments or payment processing systems - Familiarity with tools like Prometheus for monitoring and logging - Experience with Google Cloud Platform (GCP) This possibility applies to work on a B2B basis. ## **About Us** We show commitment to our investors and stand for solid, long-term growth performance. Founded in Germany in 1987 and in American territory since 2008, GFT expanded globally to over 10,000 experts. And to more than 15 markets to ensure proximity to clients. With new opportunities from Asia to Brazil, the international growth story continues. We are committed to grow tech talents worldwide. Because our team’s strong consulting and development skills across legacy and pioneering technologies, like GreenCoding, underpin success. We maintain a family atmosphere in an inclusive work environment. ## **Why Choose GFT?** - Competitive Compensation - Benefits package including comprehensive medical, dental, vision and others - Company Culture based on our Core Values - Professional Development Training with Individual Development Plans to map out your career growth - Opportunity to work in a global environment with diverse teams built with colleagues from around the world - Opportunity to work with technology industry leaders in the financial services industry - Opportunity to work for big name clients in capital markets, banking and other industries