Configure, deploy, and troubleshoot campus and data-centre 100Gbps switching.
Execute network switch rollouts including hardware racking, cabling to standard, patch-panel termination, and fibre patching.
Perform structured cabinet clean-ups: re-patching copper and fibre runs, labelling, cable management, and documentation updates.
Support and maintain the eBGP routing fabric across multiple sites.
Configure and monitor QoS profiles for mixed multigigabit, 10G/100G, and uplink interfaces.
Fast track our implementation of a 5 node Cisco Identity Services Engine (ISE) build for 802.1X, RADIUS, MAB, and posture policy enforcement.
Manage Cisco Secure Email including message tracking, content filters, outbreak filters, DLP policies, and quarantine management.
Support enterprise firewall platforms including rule-set changes, tunnel maintenance, and policy audits.
Support and maintain Cisco SD-WAN (vManage/vSmart/vBond) fabric, including device onboarding, template management, and policy configuration.
Assist with Cloud OnRamp for Multicloud connectivity (AWS / Azure), including gateway controller health checks and tunnel monitoring.
Troubleshoot overlay/underlay issues, BFD sessions, OMP route propagation, and control-plane connectivity.
Perform scheduled server patching and updates across Windows Server environments.
Apply Linux server updates and patches where required (Ubuntu) - desirable but not essential.
Support virtualisation platforms (Proxmox) for routine maintenance tasks during out-of-hours windows.
Maintain accurate network diagrams, IP address management records, and change-log documentation.
Follow and contribute to standard operating procedures, change-management processes, and post-implementation reviews.
Provide clear handover notes and shift reports for weekday engineering teams.
AWS
Ansible
Azure
Cloud
Cisco
Datadog
Fabric
Firewall
Hardware
Support
Linux
Network
PowerShell
Security
Ubuntu
Windows
NodeJS, We are looking for an experienced, fully hands-on Level 3 Network & Security Engineer to strengthen our infrastructure and network security operations. This is a senior technical delivery role requiring expertise in configuring, troubleshooting, and resolving complex issues across Cisco security suite and networking appliances. Our environment includes a multi-building campus network and enterprise security platforms, where you will work closely with IT Operations leaders. This is a 6-month contract position, located in Didcot, Oxfordshire, offering a hybrid work model of 3 days on-site and 2 days working from home.

CCNP Routing & Switching / Enterprise (current or expired with demonstrable expert-level knowledge).
Strong hands-on experience with Cisco ISE deployment, policy configuration, and troubleshooting.
Proven experience administering Cisco Secure Email / IronPort (ESA/SMA).
Solid working knowledge of enterprise firewall management (Cisco ASA, Firepower/FTD, or comparable).
Experience with Cisco SD-WAN (Viptela) architecture, including vManage operations and C8000-series router onboarding.
ENSDWI trained or demonstrably operating at that level across SD-WAN, security, and wireless integration.
Comfortable with physical infrastructure work: racking, stacking, copper/fibre patching, and cabinet standards.
Windows Server patching and administration experience.
Methodical approach to change management and documentation.
Willing to work on-site at Milton Park on a weekend or flexible shift pattern as outlined above.
Linux server administration (Ubuntu) - patching, package management, systemd services (desirable).
Cisco CCIE written or lab (any track) - indicative of depth of knowledge (desirable).
Experience with hybrid-cloud gateway controllers and Cloud OnRamp (AWS, Azure) (desirable).
Virtualisation platform experience (Proxmox) (desirable).
Familiarity with network observability and monitoring tooling (e.g., Datadog) (desirable).
Scripting/automation skills (Ansible, PowerShell) for network or server tasks (desirable).

3 temporary Tech / Digital / IT jobs in Witney, Oxfordshire