Java Engineer (API & Microservices)

We are looking for an experienced Java Engineer who wants to work on scalable, enterprise-grade solutions and have a real impact on system architecture and product development. This role combines hands-on software engineering with solution design, API governance, and close collaboration with cross-functional teams.

• Strong hands-on experience with Java and Spring Boot
• Proven experience building APIs and microservices architectures
• Solid knowledge of Java/J2EE, Spring Framework, Hibernate, and JPA
• Experience working with RESTful web services and processing XML/JSON data
• Good understanding of secure coding principles and application security
• Strong experience with relational and NoSQL databases such as Oracle, PostgreSQL, and MongoDB
• Expertise in CI/CD pipelines, Jenkins, Docker, Git, shell scripting, and Unix/Linux environments
• Strong understanding of Agile methodologies including Scrum and Kanban
• Excellent analytical and problem-solving skills

Nice to have:

• Experience with JavaScript and frontend technologies such as React, Angular, or Node.js
• Familiarity with JavaScript build tools and dependency management
• Experience creating responsive web applications (Bootstrap, mobile-first design, etc.)
• Exposure to cloud platforms such as GCP, GKE, or AWS
• Knowledge of system architecture and solution design principles
• Experience or interest in Python, Machine Learning, or Data Science

• Design, develop, and maintain scalable applications and microservices using Java technologies
• Build secure, reliable, and high-performing APIs and backend solutions
• Contribute to data modeling, system architecture, and solution design
• Ensure non-functional requirements such as scalability, security, resilience, and reliability are embedded into the architecture
• Drive API governance standards across security, process, and system APIs
• Develop cloud-ready, flexible, and robust solutions
• Collaborate with cross-functional teams to deliver scalable and efficient products
• Troubleshoot and resolve complex production issues
• Perform code reviews, unit testing, and maintain high engineering standards
• Estimate development effort and support sprint planning activities
• Work with CI/CD pipelines and follow DevOps best practices

Hybrid model: 6-8 days per month from the office in Cracow