Job Specifications
Senior Network SRE
Location: On-site, London (5 days a week)
Rate: £500 per day
Contract: Inside IR35
Length: 6 months rolling
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 InfiniBand
Support network security and segmentation, including VPN solutions such as GlobalProtect and AnyConnect
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’ 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
Technical stack & tooling
Network & Architecture (one required):
EVPN & Segment Routing
or significant MPLS expertise
Tools & Platforms:
NetBox / Nautobot
Prometheus / VictoriaMetrics
Salt
Grafana, Splunk, syslog
ServiceNow, BigPanda, ITMP
Ansible
Nice to have
Experience with InfiniBand 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.
About the Company
Built to Make an Impact.
We exist to harness the power of recruitment to create meaningful change across the world.
Our mission is simple but profound: to connect purpose-driven talent with industries that shape a better future.
From driving innovation in Tech for Impact, advancing the global Clean Energy transition, to empowering Central Government Public Services, we are a Global Recruitment Group committed to making an impact and leaving a positive legacy.
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