Senior Java Consultant

GFT TECHNOLOGIES SE; Kraków; On-site; PLN 172,000 - 220,000; Full time

Job summary

GFT Poland is seeking a Senior Java Consultant to design, develop, and maintain modern applications based on microservices. You will contribute across the full software lifecycle, support production systems, and mentor teammates.

The role requires 4+ years of hands-on Java development, Java 17/21, Spring Boot, and PostgreSQL expertise, with DevSecOps and Agile/DevOps experience. Hybrid work in Kraków is expected with six days/month onsite.

Qualifications

• 4+ years of hands-on Java development experience.
• Experience designing and developing microservices using Java 17/21 and Spring Boot.
• Strong knowledge of PostgreSQL.
• Experience with DevSecOps pipelines.
• 3+ years of experience working in Agile and/or DevOps teams.
• Experience using TDD and JUnit.
• Experience creating integration and regression tests.
• Ability to work across the full software development lifecycle.
• Experience translating functional requirements into technical solutions.
• Strong analytical and problem-solving skills.
• Self-motivated approach and willingness to learn new technologies.
• Opennes to work hybrid from our client's office (Kraków) 6 days a month.

Responsibilities

• Design, build, and maintain efficient, reusable, and reliable Java code.
• Develop and maintain microservices-based applications using Java and Spring Boot.
• Contribute throughout all phases of the software development lifecycle.
• Adopt Agile and DevOps best practices.
• Implement test-driven development and collaborate closely with QA engineers.
• Improve development team velocity and software quality.
• Mentor junior team members and support knowledge sharing.
• Support production systems through monitoring, incident resolution, and problem management.
• Develop automation tools to improve operational support processes.
• Translate business requirements into scalable technical solutions.
• Provide innovative solutions to complex technical challenges.

Skills

Java development

Microservices

Spring Boot

DevSecOps

Agile/DevOps

TDD/JUnit

Integration testing

Software lifecycle

Requirements translation

Analytical skills

Self-motivation

Hybrid work readiness

Tools

Java 17/21

PostgreSQL

Ansible

Spring Cloud (Hystrix/Eureka/Zuul)

Redis

Oracle

TypeScript/Angular/HTML5

Cloud (GCP/AWS)

MQ/Solace

Job description

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Date: Sep 21, 2026

Location: Kraków, PL, 30-302

Working place: Hybrid

Working Location:

Type of contract: B2B contract

Salary range: 125-160 PLN/H

What will you do?

As a Senior Java Consultant, you will be responsible for designing, developing, and maintaining modern applications built on a microservices architecture. You will contribute across the entire software development lifecycle, support production systems, and work closely with engineering, QA, and business teams to deliver high-quality solutions. You will also help drive DevOps adoption, improve development processes, and mentor less experienced team members.

• Design, build, and maintain efficient, reusable, and reliable Java code
• Develop and maintain microservices-based applications using Java and Spring Boot
• Contribute throughout all phases of the software development lifecycle
• Adopt Agile and DevOps best practices
• Implement test-driven development and collaborate closely with QA engineers
• Improve development team velocity and software quality
• Mentor junior team members and support knowledge sharing
• Support production systems through monitoring, incident resolution, and problem management
• Develop automation tools to improve operational support processes
• Translate business requirements into scalable technical solutions
• Provide innovative solutions to complex technical challenges

Requirements

• 4+ years of hands-on Java development experience
• Experience designing and developing microservices using Java 17/21 and Spring Boot
• Strong knowledge of PostgreSQL
• Experience with DevSecOps pipelines
• 3+ years of experience working in Agile and/or DevOps teams
• Experience using TDD and JUnit
• Experience creating integration and regression tests
• Ability to work across the full software development lifecycle
• Experience translating functional requirements into technical solutions
• Strong analytical and problem-solving skills
• Self-motivated approach and willingness to learn new technologies
• Opennes to work hybrid from our client's office (Kraków) 6 days a month

Nice to have

• Experience with AI-assisted development tools such as GitHub Copilot
• Knowledge of Spring Cloud components including Hystrix, Eureka, Zuul, Sleuth, Feign, and Ribbon
• Experience developing distributed applications using Redis, Hazelcast, Oracle Coherence, or similar technologies
• Experience building microservices with REST APIs and messaging solutions
• Knowledge of automated deployment tools such as Ansible
• Experience with Oracle databases
• Experience with TypeScript, Angular, and HTML5
• Cloud experience with GCP or AWS
• Experience with messaging systems such as MQ or Solace

We are GFT Poland. WE KNOW how to tackle complex issues with innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun and develop as human beings.

Why Choose GFT?

• A culture of top performance
• Deep tech IT engineering & consulting
• 1200 skilled & top-class experts
• 77% of the team are regular/senior
• Products that contribute to a sustainable world
• Competitive salary and benefits
• Ambitious projects, trainings and tools you need to flourish
• Google Cloud Partner of the Year - for going above and beyond for customers