Network Sre

3 months ago

London, United Kingdom XTX Markets Full time

**Network SRE**:
**THE FIRM**:
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 ROLE**:
The Shared Engineering team at XTX Markets design, develop and maintain infrastructure and tools used by the firm at large, as well as specifically 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 supporting the resulting systems.

We are looking for a network SRE who understands how networks function at a fundamental level, considers how problems can be solved using a broad array of tools and techniques, and is not limited to using off-the-shelf or open-source components.

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. Fundamental computer science knowledge is important but being self-taught is just as valid as a degree.

**RESPONSIBILITIES**:

- 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, making sure designs are consistent and simple.
- Strive to simplify complex systems and automate so they can run uninterrupted.
- Actively seek out new knowledge and ideas, understanding how/if they are applicable.
- Work independently and manage your own projects and time.

**ESSENTIAL ATTRIBUTES**:

- Strong network engineering and architecture skills.
- Knowledge of switch internals, Ethernet and IP routing, including:

- VPN and tunnelling protocols (IPSec, GRE, MPLS).
- Routing protocols (BGP, OSPF/ISIS, LDP/RSVP-TE).
- Working with multiple network vendors and network operating systems such as IOS-XE, NX-OS, EOS, Junos.
- Firewall configuration and debugging.
- Network automation, management and monitoring via code, working with different API transports (CLI-based, RESTCONF, NETCONF, gNMI).
- Ability to write code (not just scripts) in a language such as Python or Go.
- Can identify and mitigate network risks and issues.
- Very comfortable at the Linux command line.
- Demonstrable ability to take on complicated projects with a minimum of oversight.
- Proven ability and interest to work outside of your comfort zone.

**DESIRABLE ATTRIBUTES**:
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.
- Exchange and counterparty connectivity, precise timing infrastructure and latency reduction considerations.
- Multicast (IGMP/PIM), IPsec tunnels, VPNs.
- 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.

**BENEFITS**:

- 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
- 25 days paid holiday per year + statutory holiday and paid sick days
- Generous Pension.
- 4 days a week in office / 1 at home work pattern.

APPLY HERE

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