Java Developer | Financial Services

Java Developer | Financial Services
Java Developer – Global Investment Bank – Krakow
Cross‑Asset Platform | Kafka Migration | Modernisation Project
B2B | Hybrid - 3 days per week
A global investment bank is expanding its Krakow engineering hub and is looking for Java Developers to support the growth of a 20‑year‑old cross‑asset platform that is now undergoing major modernisation. This is a hands‑on engineering role focused on Kafka integration, microservices, and cloud‑aligned development practices.
You’ll join a collaborative team of 20+ developers in Poland, delivering monthly releases that support middle‑office trade capture workflows.
What you’ll work on
– Enhancing and modernising a long‑standing cross‑asset platform
– Designing and building Kafka integrations as the platform transitions to event‑driven architecture
– Developing microservices using Java, Spring, Spring Boot
– Setting up and configuring DevOps pipelines, CI/CD, and environment configs
– Applying strong software engineering fundamentals to improve reliability and maintainability
– Writing and optimising SQL queries for data access and reporting
– Contributing to monthly release cycles and global delivery processes
What you bring
– Solid commercial experience with Java, Spring, and Spring Boot
– Hands‑on experience with Kafka (building integrations, understanding redundancy, event flows)
– Understanding of microservices, distributed systems, and cloud‑ready architectures
– Ability to work with and improve legacy systems while contributing to modernisation
– Experience with DevOps concepts: configs, pipelines, CI/CD
– SQL proficiency
– Comfortable collaborating with global teams across time zones
Nice to have
– Financial services experience, especially in the middle‑office or trade capture
– Exposure to cloud platforms (AWS/Azure/GCP)
– Experience working on large, long‑lived enterprise systems
Why this role stands out
– Growth hire — join a team that’s expanding, not replacing
– Opportunity to modernise a major platform, moving to Kafka-driven architecture
– Work with a large, supportive engineering community in Poland
– Stable monthly release cycle and clear delivery rhythm