Senior Java Software Engineer

Job Description: Senior Java Software Engineer – FX Trading Platform

📍 Location: Based in Ukraine with potential business trips

Join 360 Treasury Systems AG (360T AG), a global leader in FX trading technology and a part of Deutsche Börse Group. We provide cutting-edge, web-based trading solutions for OTC instruments, driving innovation in the foreign exchange (FX) market. As a Senior Software Engineer, you will be at the forefront of developing and optimizing high-performance trading systems.

Why Join Us?

✔ Work on high-performance, low-latency trading platforms.

✔ Collaborate in a multinational team (50+ nationalities) within a globally recognized FX unit.

✔ Gain hands-on experience in JVM performance tuning, multi-threading, and low-level networking.

✔ Be involved in the full development cycle – from conception to deployment.

✔ Mentor junior developers and share expertise in high-performance computing.

Key Requirements:

✅ 5+ years of experience in Java programming.

✅ Strong OOP design patterns knowledge.

✅ Deep understanding of JVM internals, garbage collection tuning, and profiling.

✅ Expertise in multi-threaded & concurrent programming.

✅ Experience with Java networking, sockets programming, TCP internals.

✅ Experience with database systems.

✅ Strong understanding of clean code principles & defensive programming.

✅ Ability to estimate, plan, and track project progress.

✅ High level of spoken English for international collaboration.

✅ Readiness for business trips when required.

Nice to Have:

➕ C/C++ experience for deeper system-level optimization.

➕ Exposure to DevOps & CI/CD pipelines.

Your Responsibilities:

🔹 Develop & optimize high-performance trading software.

🔹 Implement clean, well-documented code following best practices.

🔹 Fine-tune JVM performance, optimize garbage collection & concurrency.

🔹 Enhance networking and socket-based communication for trading applications.

🔹 Mentor & transfer knowledge to junior engineers.

🔹 Participate in system testing & validation procedures.

🔹 Collaborate with cross-functional teams to meet project deadlines.