Senior Java Consultant

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.

Your tasks

• 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
• Excellent communication 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