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.

• 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

• 10+ years of hands‑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

• 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