Expert Java Consultant

Type of contract: B2B contract Salary range: 155-208 PLN/H What will you do? Join a team building and operating high-performance, highly available distributed systems for the financial sector. You will design and develop scalable backend services, work with modern cloud-native technologies, and contribute to the full software development lifecycle, from architecture and implementation to deployment and production support. Your tasks Design and develop high-performance Java Services Build scalable microservices and distributed dystems Create and maintain REST APIs Optimize application performance and reliability Implement CI/CD pipelines and DevSecOps practices Work with SQL and NoSQL databases Deploy and operate applications on Kubernetes Process large volumes of data in distributed environments Collaborate with cross-functional engineering teams Contribute to architecture and technical design decisions Ensure security, maintainability, and scalability standards Support production systems and resolve complex technica ilissues Requirements 5+ years of hands-on experience in Java backend development Experience building microservices, REST APIs, and distributed systems Experience developing high-performance, scalable, and highly available applications Experience with SQL, NoSQL, and large-scale data processing platforms Experience with Kubernetes, GKE, and cloud platforms, preferably GCP Experience with CI/CD, DevSecOps, and modern software engineering practices Strong understanding of system design, reliability, and maintainability Experience working in Agile teams within complex enterprise environments Openness to work hybrid from our client's office (Kraków) 8 days a month