Senior System Administrator
Core
Senior infrastructure role managing secure, reliable, and high-performing enterprise technology environments across on-premises and cloud platforms.
Role type
Senior System Administrator (Infrastructure & Cloud)
Builds
Enterprise server, cloud, network, and collaboration infrastructure for client environments
Domain
Enterprise IT, Cloud Infrastructure, Managed Services
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
Windows Server administration, Active Directory, AWS administration, Microsoft 365 administration, Network engineering, PowerShell scripting, Disaster recovery planning, Capacity planning, Automation, Change management
Preferred skills
Linux administration, Virtualization (VMware/Hyper-V), Infrastructure-as-code (Terraform/Ansible), Cisco/Meraki/Palo Alto experience, Monitoring tools, Microsoft/AWS certifications
Technologies
Windows Server, Active Directory, AWS (EC2, S3, VPC, IAM, Route 53, CloudWatch), Azure (IaaS, Entra ID), Microsoft 365 (Exchange, SharePoint, Teams, Intune), PowerShell, Bash, Terraform, Ansible, VMware vSphere, Hyper-V, Cisco, Meraki, Palo Alto
Responsibilities
Administer, maintain, and troubleshoot enterprise server, cloud, network, and collaboration infrastructure; Build, deploy, and configure Windows Server environments and cloud services; Monitor infrastructure performance, availability, and costs; Administer backup, replication, and disaster recovery processes; Automate recurring administrative activities; Provide escalation-level technical support for incidents; Develop and maintain runbooks and technical documentation; Mentor junior administrators
Seniority
Senior, hands-on IC