Java Developer

We are hiring a Java Developer to deliver high-performance applications for Fixed Income Rates and Credit trading desks in a global markets tech team.

You will build scalable Java services, improve existing components, and collaborate across 8 cities in 6 countries. Please note that working from the office in Krakow 3 days per week is required.

• Design and develop scalable Java applications that solve complex business challenges
• Improve and refactor existing components to increase performance and maintainability
• Lead UAT activities and deliver demos for key stakeholders
• Translate business requirements into clear technical specifications
• Collaborate with global IT teams to ensure smooth integration
• Support production releases and provide ongoing maintenance
• Deliver modern solutions while preserving functionality across a sophisticated, multi-faceted platform

• Hands‑on experience with Java development, including 3+ years of professional work
• Practical familiarity with low‑latency techniques and multi‑threaded programming approaches
• Excellent problem‑solving and analytical abilities
• Strong communication skills, able to explain complex technical topics to non‑technical stakeholders
• Demonstrated eagerness to learn and adapt to new technologies and market changes
• English proficiency at B2 (Upper‑Intermediate) level or higher

• Knowledge of financial markets, especially Rates and Credit bonds/derivatives, and trading platforms such as Bloomberg and Tradeweb
• Experience with messaging systems like Kafka and data serialization formats such as AVRO
• Understanding of cloud platforms including Azure, AWS, or GCP