Senior Java Backend Engineer (Core Java, Trading Systems)

Join the Java Engineering Team at a top North American bank working on large scale, high performance financial trading systems in capital markets. The role involves building highly-performant, low-latency systems used across the firm, directly supporting the development of financial trading systems.

• Strong understanding of programming concepts, including algorithms, complexity, and data structures.
• Good knowledge of the data structures in the Java standard library, both breadth and internals.
• Experience building distributed service-based applications based on message queues.
• Strong analytical and problem-solving skills to diagnose production performance issues measured in microseconds.
• Open mind, curiosity, and strong desire to learn new technologies and business domains.
• Ability to clearly explain non-trivial systems and algorithms.
• Ability to follow and understand technical conversations.
• Know when and how to ask questions that speed up learning.
• Ability to align working schedule to US Eastern business hours.

Nice to have:

• Experience with financial markets and trading systems.
• Knowledge of AWS systems.
• Experience with Spring Boot.
• Experience with JVM tuning.
• Experience working remotely with North American firms.
• A computer science degree from a top Polish school.

• Design and implement robust software solutions for the bank’s trading systems using core Java (versions 8, 17, and 21).
• Understand, develop, and improve the subsystems used by other teams in the trading platform.
• Create thorough test cases to ensure software stability and reliability.
• Collaborate with operations teams regarding building new features and improving existing functionality.
• Support production issues, including root-cause analysis and diagnosis.

Only open to residents of Poland, including Polish citizens and legal residents with permission to work in Poland.