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About the Role
Millennium is seeking a Low Latency Network Engineer to join their global Information Technology organization. This role involves designing, developing, deploying, and supporting high-performance networks for latency-critical trading environments. You will be responsible for engineering low-latency network solutions, managing global network projects, and researching new network technologies.
Responsibilities
- Engineer low-latency network solutions for trading, market data, and colocation environments, balancing project delivery with operational support
- Own global network projects from requirements gathering and design through cost analysis, implementation, and deployment
- Lead research and evaluation of new network technologies, including RF, low-latency transport, routing, switching, and compute technologies
- Configure, install, maintain, and support critical network hardware and software
- Research, evaluate costs for, and implement data circuits to meet connectivity requirements
- Design and implement highly available, low-latency market data networks
- Deploy, monitor, and troubleshoot network infrastructure, providing hands-on technical ownership and responsive user support
- Maintain infrastructure documentation, policies, and procedures, and participate in after-hours work and an on-call rotation
Requirements
- At least seven years of experience in network engineering, operations, and support, with demonstrated hands-on technical ownership in a global organization
- Expert knowledge of low-latency networking, including multicast protocols such as IGMP and PIM, Layer 2 and Layer 3 networking, WAN design, BGP, and OSPF
- Experience with Arista and Cisco technologies, including Layer 1 switches
- Strong understanding of time synchronization technologies, including Precision Time Protocol, White Rabbit, and PPS, and their role in low-latency environments
- Expert IP networking and TCP/IP troubleshooting skills
- Strong Linux shell experience
- Proficiency with Python, Bash, and automation tools such as Ansible
- Experience applying AI/ML tools to network performance optimization, anomaly detection, and predictive analytics, with an understanding of frameworks such as TensorFlow, PyTorch, and scikit-learn
- Experience using telemetry and observability frameworks such as Prometheus and Grafana for real-time network monitoring and troubleshooting
- Strong interpersonal and written communication skills, with the ability to deliver responsive, high-quality service to internal customers in a fast-paced environment
Skills
- Low-latency networking
- Multicast protocols (IGMP, PIM)
- Layer 2 networking
- Layer 3 networking
- WAN design
- BGP
- OSPF
- Arista technologies
- Cisco technologies
- Layer 1 switches
- Time synchronization technologies (Precision Time Protocol, White Rabbit, PPS)
- IP networking
- TCP/IP troubleshooting
- Linux shell
- Python
- Bash
- Ansible
- AI/ML tools for network optimization
- TensorFlow
- PyTorch
- scikit-learn
- Telemetry frameworks
- Observability frameworks (Prometheus, Grafana)
Experience Level
- Seven years of experience
About the Company
- Millennium is a global, diversified alternative investment firm, founded in 1989.
- Millennium’s mission is to deliver results for our investors.
- Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning.
- Millennium’s Information Technology organization supports the firm’s active, multi-manager business model through flexible, scalable technology and advanced proprietary systems, including next-generation analytical and trading capabilities.
- Within Infrastructure, the global network engineering team designs, develops, deploys, and supports high-performance networks for latency-critical trading.
- Operating across North America, EMEA, and APAC in a follow-the-sun model, the team supports data centers, market data networks, colocation, and proximity colocation sites with demanding availability requirements.