FullStack Engineer Java

📍 Location: Kraków, Poland (hybrid - 2 days per week in the office) 📄 B2B Contract: 180 - 200 PLN / hour

We are looking for a FullStack Software Engineer to join an international project delivered for a large organization within the financial services sector. The team is working on a global payments platform that enables fast and secure fund transfers across multiple channels, including supplier payments, salaries, tax processing, and international transactions. This role focuses on developing and modernizing both backend and frontend components of the platform, contributing to the transition from legacy systems to a modern microservices-based architecture. You will work in an Agile, DevOps-driven environment, supporting scalable and high-performance solutions.

Key Responsibilities:

• Develop and maintain backend and frontend applications using Java (11/17/21) and React
• Build and support APIs and microservices within a distributed architecture
• Participate in modernization initiatives, including migration from legacy systems (e.g. mainframe, WebSphere) to microservices-based solutions
• Collaborate with cross-functional teams to design and deliver new features
• Improve system performance, scalability, and reliability
• Contribute to automation initiatives, including test automation and CI/CD improvements
• Increase Straight-Through-Processing (STP) capabilities of services
• Work in an Agile / DevOps environment with a focus on continuous delivery

What We Offer:

• Long-term cooperation on an enterprise-scale international project
• Opportunity to work on modernizing large-scale payment systems
• Real impact on system transformation and engineering practices
• Private medical care (LuxMed) & Multisport card
• Collaboration with experienced, international engineering teams