Network SRE

Senior Network SRE (Contract)

Location:

On-site 5 days a week in London
Rate: £500 per day

Contract:

Inside IR35

We're looking for a Senior Network Site Reliability Engineer (SRE) to join a global network operations team supporting large-scale, business-critical infrastructure. This is a hands-on, high-impact contract role where you'll play a key part in keeping complex network environments reliable, scalable, and performant.

You'll take ownership of major incidents, troubleshoot deep technical issues, and drive automation and observability across a multi-vendor estate.

The role:

Lead incident management for critical network issues, owning resolution during outages and high-pressure situations
Troubleshoot complex network problems across routing, switching, firewalling, and wireless environments
Provide technical leadership, setting direction and mentoring other engineers
Operate in a 24/7 environment, participating in a shift-based support model
Work across a multi-vendor estate, including Arista, Cisco, Cumulus, Palo Alto, Check Point, F5, Netscaler, Aruba, Mist, A10, Spectrum Ethernet, and Infini Band
Support network security and segmentation, including VPN solutions such as Global Protect and Any Connect
Drive automation and observability, using modern monitoring, alerting, and configuration tools
Contribute to innovation projects, including wireless design and AI cluster deployments

Requirements:

10+ years ofhands-on experience in network engineering and operations
Deep expertise in routing, switching, firewalling, and wireless
Strong understanding of overlay and underlay networking
Solid experience in Linux/Unix environments
Proven ability to work independently and take technical ownership

Technical stack & tooling:

Network & Architecture (one required):

EVPN & Segment Routing
or significant MPLS expertise

Tools & Platforms:

Net Box / Nautobot
Prometheus / Victoria Metrics
Salt
Grafana, Splunk, syslog
Service Now, Big Panda, ITMP
Ansible Nice to have

Experience with Infini Band and AI cluster deployments
Wireless design experience (Cisco, Mist, Aruba)
Strong background in network asset management

Please apply with a copy of your CV and Emma from SR2 will contact potential candidates regarding next steps