ING Group NV
Senior Java Software Engineer - Financial Markets
OnsiteSeniorKatowice, PolandFinTechPlatform
Our Take
Build real-time trading systems for ING's global financial markets teams.
What you’ll do
- Design and develop robust backend services
- Expose services via modern REST APIs
- Improve architecture, scalability, infrastructure
- Enhance performance and system resilience
- Collaborate with business experts and traders
- Apply high-quality engineering practices
- Troubleshoot and resolve production issues
What they’re looking for
- MSc in Computer Science or equivalent
- 5+ years of production software experience
- Java, Spring Boot, Git, SQL expertise
- Strong algorithms, data structures, concurrency
- Modular, testable, maintainable systems
- Good command of English
What you get
- Salary: 9,600 - 16,000 PLN (Engineer III)
- Salary: 13,000 - 22,000 PLN (Engineer IV)
- Work in global financial markets
- Travel to Belgium
Skills & Focus Areas
- Java
- Spring Boot
- REST APIs
- CI/CD
- SQL
- Git
As posted by ING Group NV
ING Hubs Poland is hiring!
The expected salary for this position:
9 600 - 16 000 PLN - Engineer III
13 000 - 22 000 PLN - Engineer IV
The financial ranges specified in the announcement are adjusted and may differ from the range specified in the remuneration regulations.
Work environment
Join a high-impact engineering team delivering cutting-edge solutions for Financial Markets. We build systems used daily by sales teams, traders, and risk managers across global hubs: London, Amsterdam, Brussels, New York, and Singapore.
Our focus is on derivative products across multiple asset classes (equities, commodities, interest rates). You will contribute to platforms that automate the full trading lifecycle - from client quote requests to pricing, booking, and risk management - in highly dynamic, real-time environments.
This is a unique opportunity to work at the intersection of technology, finance, and global collaboration, where your work directly influences business decisions.
Your responsibilities:
- Design and develop robust backend services and expose them via modern REST APIs
- Continuously improve architecture, scalability, and infrastructure, including CI/CD pipelines
- 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
- Proactively identify, troubleshoot, and resolve issues, ensuring long-term stability
We are looking for you, if you have:
- MSc in Computer Science or equivalent practical experience
- 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
- Hands-on expertise in Java, Spring Boot, Git, and SQL
- Strong analytical thinking and a problem-solving mindset
- Good command of English (written and spoken)
- readiness to travel to Belgium
You'll get extra points for:
- Knowledge of equity derivatives or trading concepts
- Experience in financial markets or fintech environments
- Familiarity with market data providers and APIs (e.g., LSEG / RFA, Bloomberg B-Pipe)
The role naming convention in the global ING job architecture will be “Engineer III" or "Engineer IV".