Senior Java Backend Engineer – Derivatives Trading Platform

ING Hubs Poland; Katowice; On-site; PLN 60,000 - 90,000; Full time

Job summary

ING Hubs Poland is looking for a talented Engineer III or IV to join its high-impact engineering team in Katowice. You will develop robust backend services central to the trading lifecycle and enhance system performance in a dynamic environment.

The ideal candidate has over 5 years of experience in production-grade software development, strong Java and Spring Boot skills, and a solid understanding of financial markets. Collaboration with traders and business experts is essential.

Qualifications

• 5+ years of experience building and maintaining production-grade software.
• Strong foundations in algorithms, data structures, design patterns, and concurrency.
• Proven ability to build modular, testable, and maintainable systems.

Responsibilities

• Design and develop robust backend services and expose them via modern REST APIs.
• Continuously improve architecture, scalability, and infrastructure.
• Enhance performance, reliability, and system resilience in production environments.
• Collaborate closely with business experts, traders, and quants to deliver complex features.
• Apply and promote high-quality engineering practices, including automated testing.

Skills

Java

Spring Boot

Git

SQL

Problem-solving mindset

Analytical thinking

English (written and spoken)

Knowledge of equity derivatives

Education

MSc in Computer Science or equivalent practical experience

Tools

CI/CD pipelines

Market data APIs (e.g., Bloomberg B-Pipe)

Job description

ING Hubs Poland is looking for a talented Engineer III or IV to join its high-impact engineering team in Katowice. You will develop robust backend services central to the trading lifecycle and enhance system performance in a dynamic environment.

The ideal candidate has over 5 years of experience in production-grade software development, strong Java and Spring Boot skills, and a solid understanding of financial markets. Collaboration with traders and business experts is essential.