Senior Java Developer (k/m)

Hybrid work model — combining remote work with 3 days per week from Warsaw EPAM office

UoP= 18k-22k PLN brutto / B2B=140-170 pln/h

EPAM's Financial Services Practice is looking for an exceptionally talented Senior Java Developer to join our team of world-class engineers. You will work on cutting-edge technology solutions for one of the world's largest and most prestigious global investment banks — an institution at the forefront of financial innovation, operating across investment banking, securities, asset management, and consumer banking worldwide.

This is an opportunity to build high-performance, data-intensive systems within a fast-paced financial environment, collaborating with top-tier engineering talent on platforms that operate at global scale.

Responsibilities

Design, develop, and maintain robust Java-based backend services and applications
Build and enhance scalable RESTful APIs serving critical business functions
Implement reactive, event-driven solutions for high-throughput data processing
Work with NoSQL databases to manage and query large-scale datasets
Develop comprehensive unit and integration tests to ensure code quality and reliability
Collaborate with globally distributed, cross-functional teams to deliver end-to-end solutions
Participate in architectural discussions and contribute to system design for scalability and performance
Operate within an Agile Scrum framework, delivering iteratively with continuous feedback

Requirements

5+ years of professional software development experience
Strong Java development experience — with a focus on Java 8 & 9
Experience with NoSQL databases — ideally MongoDB
Experience implementing REST APIs — ideally with JAX-RS
Experience with Reactive Programming — ideally with RxJava
Solid experience implementing unit tests
Strong analytical and problem-solving skills
Good communication skills in English for collaboration within an international team

Nice to have

Experience developing applications in fintech or established financial institutions
Experience with microservice architectures
Experience developing systems that can scale to large amounts of data
Experience working in Agile Scrum
Experience working on a globally distributed team