FalconX - Senior Trading Systems Developer - Java

About The Role :

Were looking for a Senior Trading Systems Developer and Testing with a strong background in Java and Python to design and build next-generation testing and automation tools for our institutional trading platform.

This role is central to enabling automated validation of order lifecycles, venue connectivity, and low-latency behavior across our trading stack.

Youll work closely with strategy developers, support engineers, and QA to deliver a robust automation framework that improves developer velocity, system reliability, and test coverage for trading workflows.

Ideal candidates will have experience in OMS / EMS systems, deep knowledge of trading protocols like FIX, and a passion for building tools that bridge development and production Youll Do :

• Design and implement frameworks for automated testing of order entry, modification, routing, and risk logic.
• Build tools in Java / Python or Rust to simulate and validate end-to-end trading workflows across low-touch and high-touch systems.
• Develop self-service systems for trade simulation, venue behavior replay, and FIX protocol testing.
• Work closely with front-office support and engineers to automate health checks, venue cert scripts, and regression test pipelines.
• Integrate test harnesses with CI / CD pipelines for pre-deployment safety checks and latency monitoring.
• Ensure systems are observable and fault-tolerant, with tooling that supports debugging and issue reproduction.
• Support and extend test capabilities for WebSocket, REST, and FIX APIs used across exchanges and internal Were Looking For :
• 5+ years of experience building and testing distributed trading systems.
• Strong proficiency in Java (11+) and Python for building automation frameworks, trading system test harnesses, and performance tuning tools; experience with Rust is a plus.
• Experience with OMS / EMS platforms, ideally with exposure to order lifecycle, FIX messaging, and venue connectivity.
• Familiarity with test automation frameworks and continuous integration practices.
• Working knowledge of market structure, electronic trading workflows, and latency analysis.
• Proficiency with scripting (e.g., Python, Shell) to support testing and monitoring automation.
• Familiarity with high-performance messaging (e.g., Aeron, Chronicle, Kafka) and network Points :
• Experience building tools for exchange certification, regression harnesses, or FIX simulators.
• Exposure to market-making systems, risk engines, or smart order routers.
• Prior work in crypto or electronic trading in traditional finance.

(ref : hirist.tech)