Find a job 
Featured Companies 
Featured Universities 
For Companies About Five Rings
Five Rings is a proprietary trading firm founded with a vision of combining strategy, innovation and technology to succeed in today’s global markets. With offices in New York, Boca Raton, London and Amsterdam, Five Rings trades in various domestic and international markets, both established and esoteric. Our team constantly seeks new opportunities, analyzes their risks and rewards, and creates strategies and tools to capitalize on them.
We have an open culture and encourage the flow of knowledge and ideas between all areas of the firm.
About the Role
We are seeking a hands-on professional for our growing systems administration team.
Systems Administrators are responsible for the workstations and servers of our rapidly expanding trading operations. In addition to all systems work both on the desktops and in the datacenters, Five Rings Systems Administrators frequently interact with users at various levels all across our organization.
We are a Linux shop both on the server side and the trader desktops.
Our firm runs Windows servers very rarely and Windows desktops as needed.
Skills & Attributes:
- 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
Responsibilities include:
- Installations of workstations on our trading floors and in offices
- Installations of servers and networking appliances in data centers, sometimes requiring travel
Additional tasks include:
- Hardware maintenance
- Large-scale build-outs, sometimes requiring travel, both domestic and international
- Installations of office appliances such as printers, phones, televisions, etc.
This role will be fully in-person based out of London.
Contact Detail:
Five Rings Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Experienced/Lateral - Linux Systems Administrator in London
✨Tip Number 1
Network like a pro! Reach out to current employees at Five Rings on LinkedIn or through mutual connections. A friendly chat can give you insider info and might just get your foot in the door.
✨Tip Number 2
Show off your skills! If you have a personal project or GitHub repository showcasing your Linux expertise, share it during interviews. It’s a great way to demonstrate your hands-on experience and passion for systems administration.
✨Tip Number 3
Prepare for technical questions! Brush up on your knowledge of BIND, Ansible, and scripting languages like bash and Python. Being able to discuss these topics confidently will set you apart from other candidates.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the Five Rings team.
How to prepare for a job interview at Five Rings
✨Know Your Linux Inside Out
Make sure you brush up on your Linux skills, especially with Debian and Ubuntu. Be ready to discuss your hands-on experience and any specific projects you've worked on. They’ll want to see that you can navigate the system like a pro!
✨Show Off Your Communication Skills
Since you'll be interacting with users across the firm, practice explaining technical concepts in simple terms. Think of examples where you've successfully communicated with non-technical colleagues or resolved issues through clear dialogue.
✨Prepare for Hands-On Scenarios
Expect practical questions or scenarios during the interview. Brush up on your skills related to installations, hardware maintenance, and even racking and stacking in data centres. Being able to demonstrate your hands-on experience will set you apart.
✨Familiarise Yourself with Cybersecurity Tools
They value knowledge of cybersecurity tools, so make sure you’re up to speed on 2FA, iptables, and other relevant software. Be prepared to discuss how you've implemented these tools in past roles to enhance security.