Enterprise Network Engineer

Jump Trading Jump Trading · Quant · London, United Kingdom · IT Infrastructure + WCW

This role focuses on designing, configuring, supporting, and optimizing global enterprise network infrastructure, including hybrid wireless and wired environments, application delivery platforms (Citrix, HAProxy), and Quality of Service policies. It requires advanced knowledge of IP networking, switching, routing, and packet capture analysis, with an emphasis on automation and data-driven problem-solving.

What you'd actually do

  1. Design, configure and support our global enterprise network infrastructure, collaborating across multiple teams to optimize application performance and user experience.
  2. Support and troubleshoot a hybrid wireless and wired enterprise network environment serving thousands of users globally
  3. Manage and optimize network application delivery platforms including Citrix Virtual Apps and Desktops, and HAProxy load balancers
  4. Optimize performance for both internal enterprise applications and internet-facing services, ensuring exceptional end-user experience across all platforms
  5. Utilize advanced packet capture analysis (Wireshark) and automated, data-driven approaches to diagnose and resolve complex network issues including latency, packet loss, and application performance degradation

Skills

Required

  • Experience supporting large-scale global enterprise network environments
  • Advanced knowledge and troubleshooting of IP networking, TCP/IP
  • Advanced knowledge of Switching, Routing (BGP, OSPF) and Multicast (IGMP, PIM)
  • Strong experience with Citrix Virtual Apps and Desktops infrastructure
  • Strong Linux MacOs Windows network troubleshooting experience
  • Hands-on experience with HAProxy or similar load balancing technologies
  • Expert-level packet capture analysis skills using Wireshark or similar tools
  • Deep understanding of network application performance monitoring and optimization
  • Experience implementing and managing QoS policies in enterprise environments
  • Experience working with one or more of the following hardware platforms (Cisco, Arista, Juniper)
  • Experience with scripting languages (Python/Powershell preferred) and expertise with GIT
  • Experience working with automation tools (i.e., Ansible, Terraform)
  • Strong written and verbal communication skills
  • Proven ability operating in a fast-paced environment
  • Collaborative approach to complex problem solving, with a positive can-do attitude
  • Reliable and predictable availability
  • At least 5+ years of enterprise networking experience
  • At least 2+ years of experience with Citrix environments
  • At least 1+ year of scripting experience
  • CCNP certification or equivalent experience (CCIE preferred)
  • Bachelor's Degree (preferably in Information Technology, Computer Science, or related field)
  • Previous experience demonstrating strategic thinking skills and maturity in tackling complex problems, dealing with people, technology and processes

Nice to have

  • CCIE preferred
  • Python/Powershell preferred

What the JD emphasized

  • global enterprise network infrastructure
  • application delivery platforms
  • network application performance monitoring
  • advanced packet capture analysis
  • QoS policies