Market Connectivity Developer - Trading

Millennium•New York, NY

2d•$160,000 - $250,000•Remote

About The Position

We are seeking a candidate with strong experience in financial markets technology to join our Market Connectivity team. This global team is responsible for developing and maintaining front-office trading solutions, collaborating with brokers, exchanges, ECNs, and third-party platforms across all asset classes and regions.

Requirements

5+ years of Java development experience, including multithreaded systems.
3+ years of experience in a financial institution or capital markets environment.
Strong experience with the FIX protocol, including FIX 4.2 to FIX 5.0.
Experience with C++ development.
Extensive Linux development experience.
Strong understanding of object-oriented programming.
Working knowledge of networking protocols, including TCP/IP, UDP, and multicast.
Strong understanding of market structure across equities, futures, options, and FX.
Experience using AI coding assistants and engineering tools to support code generation, refactoring, documentation, debugging, and developer productivity.
Experience developing and maintaining automated test frameworks for unit, integration, regression, performance, latency, and protocol conformance testing.
Ability to apply AI tools for test case generation, log analysis, anomaly detection, root cause analysis, and production incident review.
Ability to troubleshoot production issues in a Level 3 support environment.
Excellent written and verbal communication skills.
Bachelor’s degree in Computer Science or a related field.
Knowledge of binary trading protocols.

Responsibilities

Ensuring seamless integration of third-party trading systems with the Millennium eco-system.
Building connectivity with brokers, exchanges and alternative trading venues.