Senior Java Developer

Description

We are looking for an enthusiastic Senior Java Developer to build innovative applications for Fixed Income Rates and Credit trading desks. As a member of our global Fixed Income Rates and Credit markets technology team—a dynamic, driven group operating across 8 cities in 6 countries—you will provide high-performance solutions while preserving existing functionality. Please be aware that this role requires working from the Krakow office 3 days per week. Responsibilities Design and build scalable Java applications to address complex business challenges Enhance and refactor existing components to boost performance and maintainability Lead UAT and demonstration sessions with key stakeholders Convert business requirements into technical specifications Work alongside global IT teams to achieve seamless integration Assist with production rollouts and deliver ongoing maintenance Build cutting-edge solutions while sustaining a sophisticated, multi-faceted platform Requirements 5+ years of professional experience developing in Java Familiarity with low-latency and multi-threaded programming methods Outstanding problem-solving and analytical abilities Strong communication skills, capable of clarifying complex technical concepts for non-technical stakeholders Eagerness to learn and adjust to new technologies and market shifts English skills at B2 level or above Nice to have Comprehension of financial markets, especially Rates and Credit bonds/derivatives along with trading platforms (e.g., Bloomberg, Tradeweb) Experience with messaging systems such as Kafka and data serialization formats (e.g., AVRO) Understanding of cloud platforms (Azure, AWS or GCP)

Requirements

• 5+ years of professional experience developing in Java

• Familiarity with low-latency and multi-threaded programming methods

• Outstanding problem-solving and analytical abilities

• Strong communication skills, capable of clarifying complex technical concepts for non-technical stakeholders

• Eagerness to learn and adjust to new technologies and market shifts

• English skills at B2 level or above

Responsibilities

• Design and build scalable Java applications to address complex business challenges

• Enhance and refactor existing components to boost performance and maintainability

• Lead UAT and demonstration sessions with key stakeholders

• Convert business requirements into technical specifications

• Work alongside global IT teams to achieve seamless integration

• Assist with production rollouts and deliver ongoing maintenance

• Build cutting-edge solutions while sustaining a sophisticated, multi-faceted platform

Seniority

• Senior

Nice to have

• Comprehension of financial markets, especially Rates and Credit bonds/derivatives along with trading platforms (e.g., Bloomberg, Tradeweb)

• Experience with messaging systems such as Kafka and data serialization formats (e.g., AVRO)

• Understanding of cloud platforms (Azure, AWS or GCP)