Low Latency Network Engineer
We are seeking an experienced Network Engineer to join our latency-critical trading infrastructure team. As part of a global follow-the-sun team of network engineers across North America, EMEA, and APAC, the Network Engineer will focus on the architecture, design, development, deployment, and support of Millennium’s high-performance global networks. These networks have extreme uptime requirements and utilize cutting-edge technologies. This role encompasses all aspects of networking, including datacenters, market data, co-location (co-lo), and proximity colocation sites.
3. Principal Responsibilities
- Senior Engineering Role:
- Focus on low-latency network technologies with a balanced mix of project work and operations in the low-latency trading environment, including Market Data, Trading, and co-lo design.
- Project Management:
- Own and manage global network projects from start to finish, including requirement gathering, design, cost analysis, implementation, and deployment.
- Innovation Leadership:
- Lead research and innovation efforts to introduce new network technologies into the firm, including RF technologies, low-latency transport, routing/switching, and compute technologies.
- Network Configuration and Support:
- Configure, install, maintain, and support critical network software and hardware components.
- Research, price out, and implement data circuits.
- Design and implement high-availability, low-latency Market Data networks.
- Operations and Troubleshooting:
- Deploy, support, and troubleshoot the network infrastructure.
- Document the IT infrastructure, policies, and procedures.
- Provide general user support and participate in after-hours work and an on-call rotation.
4. Qualifications/Skills Required
- Technical Expertise:
- Expert in low-latency network technologies, including Multicast (IGMP, PIM), L2/L3, and WAN design.
- Expert in routing protocols such as BGP and OSPF.
- Experience with Arista, Cisco, including Layer 1 switches.
- Knowledge of FPGA and high-performance computing technologies is a plus.
- Strong understanding of time synchronization protocols, including Precision Time Protocol (PTP, WR) and PPS, and their role in low-latency environments.
- Experience with network automation tools and frameworks, including Python, Ansible, or similar technologies.
- Experience leveraging AI/ML-driven tools for network performance optimization, anomaly detection, and predictive analytics. Understanding of AI frameworks and libraries (e.g., TensorFlow, PyTorch, Scikit-learn) and their application in network automation and monitoring.
- Experience with telemetry and observability frameworks (e.g., Prometheus, Grafana) for real-time network monitoring and troubleshooting.
- Experience:
- Minimum of 7 years’ of experience in network engineering, operations, and support.
- Proven ability to work hands-on and take strong technical ownership in a global organization.
- Networking and Troubleshooting:
- Expert knowledge of IP networking, TCP/IP, and troubleshooting.
- Experience with Python and Bash scripting to automate tasks.
- Strong Linux shell experience.
- Soft Skills:
- Strong interpersonal and written communication skills.
- Proven ability to operate in a fast-paced environment.
- Passion for delivering high levels of service and support to internal customers.
Summary
Design, deploy, and support low-latency network infrastructure for trading.
Job title
Low Latency Network Engineer
Experience level
7+ years
Industry
finance
Location requirements
Located in London, remote work not allowed.
Salary
Not specified
Management role
No
Required skills
Preferred skills
Specializations
Structured locations inferred from the posting.
London, UK