Sr Network Engineer

Selby Jennings Ltd

  • Chicago, IL
  • 3 days ago

    Highlights

    Experience with Python or similar scripting languages, along with exposure to automation frameworks (e.g., Ansible) and API-driven tooling (REST/JSON). A leading trading firm is seeking a Network Engineer to design, support, and optimize a global, low-latency infrastructure.

    Numbers & Facts

    LocationChicago, IL

    Description

    A leading trading firm is seeking a Network Engineer to design, support, and optimize a global, low-latency infrastructure.

    Key Responsibilities:

    • Design, support, and enhance a global network infrastructure built for low-latency and high-throughput applications
    • Troubleshoot complex performance issues including latency, jitter, packet loss, and micro-bursting across hybrid network environments
    • Drive automation and DevOps-style practices to improve network provisioning, monitoring, and operational efficiency
    • Lead network projects end-to-end, including architecture, deployment, optimization, and documentation

    Requirements:

    • 5+ years of network engineering experience within large-scale, performance-sensitive environments
    • Strong knowledge of TCP/IP fundamentals, including deep understanding of routing (BGP, OSPF), switching, and multicast protocols (IGMP, PIM)
    • Hands-on experience with network performance analysis, packet capture (e.g., tcpdump/Wireshark), and troubleshooting complex traffic patterns
    • Experience with Python or similar scripting languages, along with exposure to automation frameworks (e.g., Ansible) and API-driven tooling (REST/JSON)
    • Familiarity with enterprise networking hardware (Cisco, Arista, or similar) and strong Linux command line experience
    • Exposure to monitoring and observability tools (e.g., Splunk, Grafana, InfluxDB) and network telemetry concepts
    • Experience supporting low-latency or trading environments is a strong plus

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