Senior Trading Systems Developer (Electronic Trading)

Who are we?

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 addresses the industry's foremost challenges: Navigating the digital asset market can be complex and fragmented, with limited products and services that support trading strategies, structures, and liquidity found in conventional financial markets. As a comprehensive solution for all digital asset strategies from start to scale, FalconX operates as the connective tissue empowering clients with seamless navigation through the ever-
evolving cryptocurrency landscape.

About The Role:

We’re looking for a Senior Trading Systems Developer with strong experience in Java and Rust to architect and build our next-generation Order Management System (OMS) and electronic trading execution platform. This platform will be central to supporting complex electronic trading workflows, such as market making and internalizing flow spanning high- and low-touch desks. You’ll be designing and developing scalable, low-latency components that are resilient under heavy load and tightly integrated with our execution stack and internal trading infrastructure.

What You’ll Do

• Design and implement a high-performance OMS for institutional trading workflow and EMS for electronic trading strategies and internalization engines.
• Lead the development of core order lifecycle components: order entry, modification, routing, risk checks, and state management.
• Build scalable services using Java and Rust, optimized for latency and throughput.
• Collaborate with strategy developers, product managers, and infrastructure teams to deliver flexible and extensible trading systems.
• Ensure system resilience, observability, and recovery in distributed, high-availability environments.
• Integrate with external market venues and internal trading strategies using WebSocket, REST, and FIX APIs.
• Drive code quality, testability, and production readiness through CI/CD, monitoring, and alerting best practices.

What We’re Looking For

• 5+ years of experience designing and building distributed trading systems.
• Expertise in Java and Rust for performance-critical systems. C++ a plus.
• Experience building or significantly contributing to an Order Management System (OMS) or Execution Management System (EMS).
• Solid understanding of order state transitions, event-driven architecture, and low-latency system design.
• Experience with WebSocket, REST, FIX, and OpenSSL at the protocol level.
• Knowledge of market structure, trading workflows (high- and low-touch), market making, and electronic trading best practices.
• Experience with high-performance messaging frameworks (e.g., Aeron, Chronicle, ZeroMQ, Kafka).
• Strong computer science fundamentals in data structures, algorithms, concurrency, and memory management.
• Familiarity with cloud-native environments, performance tuning, and system observability.

Bonus Points

• Prior experience in crypto markets or electronic trading in traditional finance.
• Experience integrating OMS 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.

Notice at Collection and Privacy Policy

Applicants located in California and/or applying to a role based in California, please refer to our Notice at Collection and Privacy Policy here.

Inclusivity Statement

FalconX is committed to building a diverse, inclusive, equitable, and safe workspace for all people. Our roles are intended for people from all walks of life. We encourage all those interested in applying to our organization to submit an application regardless if you are missing some of the listed background requirements, skills, or experiences!

As part of our commitment to inclusivity, FalconX would like to acknowledge that the EEOC survey has limited potential responses that you can select. For legal reasons, FalconX must use this language to align with federal requirements, however, we want to ensure that you are able to provide a response to our own voluntary survey questions about your identity that best aligns with your most true self.

FalconX is an equal opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, national origin, ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, or any other legally-recognized protected basis under federal, state, or local law.

Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on FalconX. Please inform FalconX’s People team at recruiting@falconx.io, if you need assistance with participating in the application process.