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Senior Systems Administrator
- London, England, United Kingdom
- London, England, United Kingdom
About
Role Overview We are seeking an experienced Systems Administrator. This senior-level role is responsible for the design, implementation, and ongoing management of our cloud infrastructure and enterprise network environments.
Cloud Infrastructure Management
* Design, deploy and manage cloud environments across Azure and Oracle Cloud platforms (or similar is fine) as the Senior Systems Administrator
* Administer cloud-native services including virtual machines, containers, serverless functions and managed databases
* Implement and maintain infrastructure-as-code (IaC)
Network Administration
* Design, implement and maintain enterprise network infrastructure including LAN, WAN and (site-to-site) VPNs
* Administer and configure firewalls, routers, switches, and load balancers (Cisco, Sophos, Palo Alto or similar)
* Manage DNS, DHCP and IP address management (IPAM) across all environments
* Oversee network performance monitoring, troubleshooting and capacity planning
* Manage BGP, OSPF and VLAN configurations in complex multi-site environments
* Implement and maintain network segmentation, zero-trust architecture principles and micro-segmentation
Automation & DevOps Integration
* Develop and maintain automation scripts using PowerShell, Python or Bash to streamline operations
* Contribute to GitOps practices and maintain version-controlled infrastructure configurations
* Implement monitoring and alerting solutions (e.g. Datadog, Prometheus, Grafana)
Essential Requirements
* Hands-on experience as a Systems Administrator working heavily with cloud and network administration
* Deep expertise in at least one major cloud platform
* Strong knowledge of enterprise networking protocols
* Experience with firewall administration and network security policy management
Senior Systems Administrator
Languages
- English
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