Senior Java Developer – Financial Trading Systems

Unleash innovative trading systems — empower the future of global financial markets!

Kraków-based opportunity with hybrid work model (2 days/week in the office).

As a Senior Java Developer, you will be working for our client, a prominent global financial institution dedicated to developing cutting-edge trading platforms supporting high-volume FX and eRates markets. You will help build scalable, low-latency systems that drive the world’s financial trading activity, fostering innovation and operational excellence.

Your main responsibilities:

• Collaborate directly with traders and quantitative teams to gather, analyze, and refine technical requirements.

• Partner with technical leads and development teams to enhance and optimize trading systems.

• Design detailed technical solutions addressing complex business challenges within trading environments.

• Develop and implement high-performance, scalable server-side applications in Java.

• Apply industry best practices, including continuous integration and automated testing, to ensure high-quality deliverables.

• Conduct comprehensive testing prior to user acceptance to maintain system integrity.

• Support deployments to development and testing environments, ensuring smooth rollouts.

• Provide ongoing support for trading platforms during intra-day and overnight operations, maintaining system reliability.

You're ideal for this role if you have:

• 6+ years of experience in Java server-side development within enterprise or trading systems.

• Proven expertise in multi-threaded application development and low-latency, high-throughput environments.

• Solid understanding of distributed global systems, particularly in trading and financial markets.

• Knowledge of FX market conventions, including Spot and Forward FX.

• Experience in investment banking or financial services, especially in high-volume trading environments.

• Strong collaboration skills, able to work effectively with traders, quants, and technical teams in agile frameworks.

• Problem-solving mindset, with motivation to deliver reliable, high-quality solutions under pressure.

• Excellent communication skills to liaise with both technical and non-technical stakeholders.

• Proven track record of following structured development methodologies and design patterns.

It is a strong plus if you have: (optional)

• Experience in building FX or eRates pricing systems.

• Working knowledge of KDB/Q for data analysis and storage.

• Skills in Python for supporting development tasks.

• Understanding of risk management principles within trading platforms.

• Collaboration experience with external consultancies or technical partners.

We offer you: 

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: 

• Stable and long-term cooperation with very good conditions  

• Enhance your skills and develop your expertise in the financial industry 

• Work on the most strategic projects available in the market 

• Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years 

• Participate in Social Events, training, and work in an international environment 

• Access to attractive Medical Package 

• Access to Multisport Program 

• Access to Pluralsight 

• Flexible hours & remote work 

Internal job number #7723

 You can report violations in accordance with ITDS’s Whistleblower Procedure available here.