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Senior core infrastructure engineer

Leeds
The SJB Group
Infrastructure engineer
€60,000 a year
Posted: 29 March
Offer description

We’re looking for a Senior Infrastructure Engineer to join a global team delivering secure, scalable, and highly available network environments across multiple regions.

This is a hands‑on role suited to someone with strong Cisco networking experience (ideally Nexus) and expertise in Fortigate firewalls, who thrives in complex, enterprise environments.


What you’ll be doing:

* Designing and supporting global network infrastructure (LAN/WAN/Data Centre)
* Managing Cisco routing & switching (BGP, VLANs, STP, LACP)
* Configuring Fortigate firewalls, VPNs & security policies
* Troubleshooting complex, multi‑site network issues
* Supporting virtualised environments (VMware, Hyper‑V, Nutanix)
* Contributing to architecture, performance tuning & incident response
* Collaborating with global teams (with on‑call rota participation)


What we’re looking for:

* Strong Cisco networking background (Nexus highly desirable)
* Fortigate firewall experience in enterprise environments
* Solid understanding of network security & best practices
* Experience working in global/distributed teams


Nice to have:

* pfSense, SD‑WAN, or cloud networking (AWS/Azure/GCP)
* Scripting/automation (Python, Ansible)
* Fully remote role
* Work on enterprise‑scale infrastructure
* Be part of a global, collaborative tech team
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