Network SRE


XTX Markets is a leading algorithmic trading company partnering with counterparties, exchanges and e-trading venues globally to provide liquidity in the Equity, FX, Fixed Income and Commodity markets. We provide consistent liquidity, helping market participants throughout the world obtain the best prices in the various assets classes we cover, regardless of changing market conditions.

At XTX Markets technology is our business and we are a diverse organisation which attracts outstanding talent from across all industry backgrounds. We are focused on teamwork and our people collaborate on all aspects of the business, working openly and with respect for each other, our clients and the market. Our culture is non-hierarchical and one where everyone is valued. We strive for excellence in everything we do.


The Shared Engineering team at XTX Markets design, develop and maintain infrastructure and tools used by the firm, as well as supporting our OTC trading and post-trade systems. We do not operate in technology silos at XTX, instead preferring to build small teams of multi-skilled engineers who work together on developing solutions - and we support those systems ourselves from the hardware up.

We are looking for a network SRE who understands how networks work at a fundamental level, codes in a language such as Python or Go, thinks about how problems can be solved using a broad array of tools and techniques and is not limited to conventional network thinking.

You may have been a network engineer, designer and/or architect and moved beyond core switching/routing into automating and monitoring everything possible by means of code. It is likely you enjoy tinkering with all sorts of technology, particularly open-source or building tools yourself.  Fundamental computer science knowledge is important to us but being self-taught is just as valid as a computer science degree.  

Because we operate in a multi-skilled team, the role offers the opportunity (and requirement) to learn more about hardware, operating systems, the applications that run on them, Python/Go development, AWS and storage. In addition, you will work directly with teams responsible for our OTC trading and post-trade systems among others.  Prior finance knowledge is not required.


The team is responsible for engineering and supporting infrastructure and tooling with the overarching Some activities include:

  • Support a high-performance trading business, dealing with outages, performing root cause analysis and expanding the footprint
  • Develop our network and datacentre infrastructure across multiple sites globally
  • Strive to simplify complex systems and automate so they can run uninterrupted
  • Work with procurement to ensure we take sound commercial decisions
  • Actively seek out new knowledge and ideas, understanding how/if they are applicable
  • Work independently and manage your own projects and time


  • Strong network engineering and architecture skills
  • Knowledge of switch internals, Ethernet and TCP/IP
  • Ability to write code (not just scripts) in a language such as Python or Go
  • Network management and/or monitoring via code
  • Comfortable at the Linux command line
  • Demonstrable ability to take on complicated projects with a minimum of oversight
  • Understanding what it takes to get the job done and perform work outside of your comfort zone


We would not expect someone to have all the following skills or experience, but any knowledge would be welcome. More so, it gives an idea of the wide range of technologies we use, and you could expect to be involved with:

  • Tier 1 Internet service providers and internet exchanges
  • Multicast (IGMP/PIM), IPsec tunnels, VPNs
  • Firewall configuration and debugging
  • Metrics and log collection
  • Monitoring tools
  • Server hardware, Linux and bash scripting
  • Containerisation technology
  • Storage systems at the multi-PB scale
  • Understanding of CI/CD development processes
  • Cloud service providers
  • Exchange and counterparty connectivity, precise timing infrastructure and latency reduction considerations


  • Flexible working options
  • Onsite gym, sauna, and fitness classes at no charge
  • Extensive medical benefits including an on-site doctor and therapist at no charge
  • Breakfast and lunch provided
  • Various supports for caregivers, including emergency dependent care
  • Beautiful Kings Cross office:
  • 25 days paid holiday per year + statutory holiday and paid sick days
  • Generous Pension