Senior Systems Administrator

Senior Systems Administrator

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.

• 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)

• 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

• Develop and maintain automation scripts using Power Shell, Python or Bash to streamline operations
• Contribute to Git Ops practices and maintain version‑controlled infrastructure configurations
• Implement monitoring and alerting solutions (e.g. Datadog, Prometheus, Grafana)

• 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