Senior Network Site Reliability Engineer
<p><b>Salary: £99,000 - 110,000 per year</b></p>
<b>Requirements:</b>
<ul><li>Minimum 10 years hands-on experience in network engineering and operations</li><li>Deep expertise in routing, switching, firewalling, and wireless across multiple vendors</li><li>Strong troubleshooting skills, including overlay/underlay network understanding</li><li>Proficiency in Linux/Unix environments</li><li>Experience with automation and monitoring platforms</li><li>Ability to work independently, set technical direction, and mentor others</li><li>Familiarity with tools such as Netbox/Nautobot, Prometheus/VictoriaMetrics, and Salt</li><li>Experience with networking technologies like EVPN, Segment routing, or significant MPLS depth</li></ul>
<b>Responsibilities:</b>
<ul><li>Own and resolve critical network incidents, manage outages, and provide expert guidance during high-pressure situations</li><li>Diagnose and resolve complex issues across routing, switching, firewalling, and wireless domains</li><li>Set technical direction, mentor junior engineers, and foster a culture of operational excellence</li><li>Participate in a shift-based model to ensure continuous availability of critical network services</li><li>Operate across diverse environments including Arista, Cisco, Cumulus, Spectrum Ethernet, InfiniBand, Palo Alto, Check Point, Mist, Aruba, A10, Netscaler, and F5</li><li>Support network segmentation, policy enforcement, and VPN solutions such as GlobalProtect and AnyConnect</li><li>Utilize tools like Grafana, Big Panda, ServiceNow, ITMP, syslog, Splunk, Salt, Ansible, and Prometheus to enhance monitoring and automation</li><li>Collaborate on wireless design and AI cluster deployments to support cutting-edge initiatives</li></ul>
<b>Technologies:</b>
<ul><li>AI</li><li>Ansible</li><li>Aruba</li><li>Cisco</li><li>Ethernet</li><li>Grafana</li><li>InfiniBand</li><li>Support</li><li>Linux</li><li>MPLS</li><li>Network</li><li>Prometheus</li><li>ServiceNow</li><li>Splunk</li><li>Unix</li><li>VPN</li><li>Security</li></ul>
<p><b>More:</b></p>
<p>We are seeking a highly experienced Senior Network Site Reliability Engineer (SRE) to join our global network operations team in London. This role is critical in ensuring the reliability, scalability, and performance of our network infrastructure. Our team values a culture of innovation, operational excellence, and continuous improvement, and we offer a dynamic work environment with opportunities for personal and professional growth.</p>
<p>last updated 8 week of 2026</p>
<b>Requirements:</b>
<ul><li>Minimum 10 years hands-on experience in network engineering and operations</li><li>Deep expertise in routing, switching, firewalling, and wireless across multiple vendors</li><li>Strong troubleshooting skills, including overlay/underlay network understanding</li><li>Proficiency in Linux/Unix environments</li><li>Experience with automation and monitoring platforms</li><li>Ability to work independently, set technical direction, and mentor others</li><li>Familiarity with tools such as Netbox/Nautobot, Prometheus/VictoriaMetrics, and Salt</li><li>Experience with networking technologies like EVPN, Segment routing, or significant MPLS depth</li></ul>
<b>Responsibilities:</b>
<ul><li>Own and resolve critical network incidents, manage outages, and provide expert guidance during high-pressure situations</li><li>Diagnose and resolve complex issues across routing, switching, firewalling, and wireless domains</li><li>Set technical direction, mentor junior engineers, and foster a culture of operational excellence</li><li>Participate in a shift-based model to ensure continuous availability of critical network services</li><li>Operate across diverse environments including Arista, Cisco, Cumulus, Spectrum Ethernet, InfiniBand, Palo Alto, Check Point, Mist, Aruba, A10, Netscaler, and F5</li><li>Support network segmentation, policy enforcement, and VPN solutions such as GlobalProtect and AnyConnect</li><li>Utilize tools like Grafana, Big Panda, ServiceNow, ITMP, syslog, Splunk, Salt, Ansible, and Prometheus to enhance monitoring and automation</li><li>Collaborate on wireless design and AI cluster deployments to support cutting-edge initiatives</li></ul>
<b>Technologies:</b>
<ul><li>AI</li><li>Ansible</li><li>Aruba</li><li>Cisco</li><li>Ethernet</li><li>Grafana</li><li>InfiniBand</li><li>Support</li><li>Linux</li><li>MPLS</li><li>Network</li><li>Prometheus</li><li>ServiceNow</li><li>Splunk</li><li>Unix</li><li>VPN</li><li>Security</li></ul>
<p><b>More:</b></p>
<p>We are seeking a highly experienced Senior Network Site Reliability Engineer (SRE) to join our global network operations team in London. This role is critical in ensuring the reliability, scalability, and performance of our network infrastructure. Our team values a culture of innovation, operational excellence, and continuous improvement, and we offer a dynamic work environment with opportunities for personal and professional growth.</p>
<p>last updated 8 week of 2026</p>