Senior Trading Systems Developer

Responsibilities

• Architect and build next-generation low-latency trading applications and execution platforms.
• Develop low-latency services on Aeron, including OMS/EMS components, market-data pipelines, and venue gateway connectivity.
• Integrate with exchange APIs using FIX, REST, WebSocket, and venue-specific protocols.
• Model complex order lifecycles, state machines, and execution workflows into resilient, fault-tolerant services.
• Design and maintain SBE message schemas and high-throughput message-bus communication.
• Own the full SDLC for your domain, including design, testing, shipping, and monitoring.
• Collaborate with quant, trading, infrastructure, and data teams to meet performance and reliability targets.

Requirements

• 5+ years of experience in trading systems with prior design ownership.
• Strong background in Java (11+) and/or Rust, including performance profiling, concurrency, and lock-free programming.
• Experience building EMS and execution systems operating in microsecond latency ranges.
• Deep understanding of order state machines, execution workflows, and institutional trade lifecycle mechanics.
• Strong experience with Aeron or other high-throughput messaging frameworks.
• Hands-on experience integrating with FIX, REST, and WebSocket APIs.
• Experience designing normalized schemas and working with relational databases (e.g., Postgres, MySQL).

Preferred Qualifications

• Prior experience in crypto markets or electronic trading in traditional finance.
• Experience integrating execution platforms with strategy containers, risk engines, or smart order routers.
• Knowledge of FIX protocol nuances and connectivity to major exchanges.
• Exposure to container orchestration, service mesh, or hybrid deployment architectures.

About the Company

FalconX is a pioneering team of operators, investors, and builders committed to revolutionizing institutional access to the crypto markets. Operating at the intersection of traditional finance and cutting-edge technology, FalconX serves hedge funds, asset managers, and financial institutions by providing a comprehensive solution for all digital asset strategies.