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Software Engineer

Netflix - 1d ago

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Senior Software Engineer

Reddit - 4d ago

Experienced/Lateral - Linux Systems Administrator

Requirements

  • Fluency in Linux administration is a must
  • Experience in Debian/Ubuntu preferred
  • Strong communication skills
  • A demonstrated ability to work tasks to completion and tolerate frequent context switches
  • Experience with:
    • BIND
    • Ansible
    • Linux KVM
    • Zabbix
    • Google workplace collaboration and productivity tools
    • Some Windows administration skills are a plus, but not required
  • Experience scripting in bash and python is preferred, SQL and Perl a plus
  • Knowledge of cybersecurity tools including 2FA, iptable rulesets, Malwarebytes, fail2ban, etc.
  • Ability to move and install equipment weighing up to 50lbs
  • Preference to apply a breadth of experience towards varied responsibilities in a small-shop environment
  • Comfortable with hands-on work, racking and stacking in datacenters is commonplace

What You'll Be Doing

  • Installations of workstations on our trading floors and in offices
  • Installations of servers and networking appliances in data centers, sometimes requiring travel

Additional Tasks

  • Hardware maintenance
  • Large-scale build-outs, sometimes requiring travel, both domestic and international
  • Installations of office appliances such as printers, phones, televisions, etc.

Perks and Benefits

  • This role will be fully in-person based out of London
AI Summary ✨
Five Rings logo

Five Rings

London, UK

Experience: Mid-level
Posted: December 22, 2025
Last seen: 27 minutes ago
Python
backend

Why we track Five Rings

Five Rings is a proprietary trading firm with offices in London and Amsterdam. They hire software developers and systems engineers who work on low-latency trading infrastructure in C++ and Python. Compensation is at the top end of the market—£137–198K TC for London roles.

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