Network Operations Engineer – high frequency trading

Company: Quant Capital
Apply for the Network Operations Engineer – high frequency trading
Location: London
Job Description:

Overview

In this role you will maintain and optimize mission-critical trading networks within a top prop trading house in London. You’ll work as part of a small, world-class team to monitor performance, troubleshoot issues, and support complex network infrastructure including microwave planning and proprietary black boxes. You’ll gain exposure to sophisticated trading networks and contribute to high-availability operations in a fast-paced financial environment. This is a senior, hands-on role for those who enjoy deep technical challenges and continuous learning.

Pay / Benefits

  • yearly bonus well above market rates
  • relaxed open environment with space to think and decide
  • casual dress code
  • opportunity to work in a world-class trading organization

Responsibilities

  • Monitor network performance and troubleshoot issues
  • Conduct complex engineering activities to maximize performance
  • Learn and apply microwave network planning including frequency and interference analysis
  • Support and configure proprietary black boxes
  • Daily health checks and monitoring using proprietary and industry-standard tools
  • Support project implementations
  • Determine power configuration and forecast capacity requirements

Key requirements

  • BSc in a computer or network-based subject
  • 3+ years of commercial network operations experience
  • Experience with Cisco and Juniper networking technologies
  • Keen interest in working with proprietary hardware (black boxes)
  • Scripting skills (Python, Perl, Shell, Java, JavaScript)
  • Linux administration skills
  • Self-driven and able to work independently
  • Problem solving and eagerness to learn new technologies
  • Ability to engineer projects and produce required documents
  • Willingness to be on call and work extra hours
  • Bonus: radio/microwave experience
  • Bonus: configuration management experience (Chef, Puppet, Ansible)
  • self-driven
  • problem solving
  • eagerness to learn
  • Cisco
  • Juniper
  • proprietary hardware (black boxes)

Posted: September 14th, 2026