Low-Latency Trading Network Engineer

Referment; Greater London; On-site; GBP 60,000 - 85,000; Full time

Job summary

Referment, based in the City of London, is expanding its small expert Network team. They seek a Network Engineer to support a low-latency trading network spanning cloud and on-prem environments and to take increasing project ownership as experience grows.

You will split time between operations and project work, running checks, investigating faults, onboarding clients, and supporting live trading platforms during market hours. Some London data-centre travel may be required.

Qualifications

• 4+ years in a network and security support engineering role, ideally in financial services.
• CCNP/ACE-P or equivalent experience, with hands-on OSPF and BGP and support/configuration experience of RSTP.
• Firewall cluster and centralised firewall manager experience — Fortinet is advantageous.
• Strong TCP/IP, Spanning Tree, routing and firewall fundamentals, plus IPSEC site-to-site and remote VPN configuration.
• Monitoring and troubleshooting with Wireshark, tcpdump, syslog and SolarWinds or an equivalent platform.

Responsibilities

• Run daily checks of the network and security infrastructure and investigate faults using logs and captures.
• Support live trading platforms during market hours and manage client onboarding, access requests and decommissioning.
• Liaise with telecoms providers on leased lines and circuits and support planned network changes.
• Maintain high-quality documentation and participate in incident investigation and root-cause analysis.
• Occasionally visit data centres in West and East London and cover weekend/bank holidays as needed.

Skills

Network engineering

Security support

OSPF/BGP

Troubleshooting

Education

CCNP/ACE-P

Tools

Wireshark

tcpdump

SolarWinds

Ansible

Python

Job description

Referment, based in the City of London, is expanding its small expert Network team. They seek a Network Engineer to support a low-latency trading network spanning cloud and on-prem environments and to take increasing project ownership as experience grows.

You will split time between operations and project work, running checks, investigating faults, onboarding clients, and supporting live trading platforms during market hours. Some London data-centre travel may be required.