Senior Market Connectivity Engineer (Java/C++)

Millennium Management LLC; New York (NY); On-site; USD 100,000 - 175,000; Full time

Job summary

Millennium is seeking an experienced software engineer to lead onboarding of external trading teams and to develop front-office market connectivity within a global trading ecosystem. The role focuses on integrating third-party trading systems and ensuring robust connectivity across asset classes.

The candidate will drive troubleshooting and provide Level 3 support, leveraging Java and C++ expertise in a financial institution setting, with strong communication skills and global collaboration.

Qualifications

• 5+ years of Java development experience, including multithreaded applications.
• 3+ years of C++ development experience.

Responsibilities

• Lead the onboarding of external trading teams, integrating third-party trading systems into the Millennium ecosystem.
• Develop and maintain front-office market connectivity and trading solutions.
• Partner with brokers, exchanges, ECNs, and third-party platform providers to support reliable integration and connectivity.
• Troubleshoot and resolve complex production issues, providing Level 3 support for trading systems.
• Collaborate with global stakeholders to deliver seamless connectivity across asset classes and regions.

Skills

Java development

C++ development

Multithreaded programming

Networking (TCP/IP/UDP)

Financial services experience

FIX protocol

Linux development

Communication skills

Tools

Linux

TCP/IP

Binary trading protocols

Front-office systems

Job description

Millennium is seeking an experienced software engineer to lead onboarding of external trading teams and to develop front-office market connectivity within a global trading ecosystem. The role focuses on integrating third-party trading systems and ensuring robust connectivity across asset classes.

The candidate will drive troubleshooting and provide Level 3 support, leveraging Java and C++ expertise in a financial institution setting, with strong communication skills and global collaboration.