IT Infrastructure Admin

About the role

Administers, secures, and supports the company’s network, server, cloud, and endpoint infrastructure. Provides hands-on troubleshooting, maintenance, project implementation, and technical support to ensure reliable business operations.

Responsibilities

• Install, maintain, and troubleshoot Windows servers, Active Directory, Group Policy, DNS, DHCP, and virtualization platforms.
• Administer LAN/WAN, wireless networks, VPNs, firewalls, switches, routers, and VoIP services; oversee the 24/7 external monitoring provider, act on its alerts and escalations, and hold it to service levels.
• Support Microsoft 365, Exchange Online, Teams, SharePoint, cloud infrastructure (including AWS), and hybrid identity services.
• Maintain endpoint devices, software deployments, system updates, patching, and user access; resolve escalated technical issues.
• Implement security controls, endpoint protection, MFA, vulnerability remediation, and system hardening; coordinate with security partners.
• Monitor backup and recovery systems; conduct restore testing and assist with business continuity and disaster recovery.
• Evaluate and support business applications; assist with upgrades, testing, rollouts, documentation, and user training.
• Maintain network diagrams, inventories, procedures, and monitoring; use scripting and automation to improve reliability and efficiency.

Requirements

• Five years of relevant IT experience with hands-on administration of both enterprise networks and Windows server environments.
• Working knowledge of TCP/IP, switching/routing, firewalls, Active Directory, Microsoft 365, system security, and backup/recovery.
• Strong troubleshooting, communication, documentation, prioritization, and independent problem-solving skills with a track record of owning results.

Qualifications

• Associate’s or bachelor’s degree in IT or related field.
• Relevant Microsoft, Cisco, CompTIA, or AWS certifications.
• Experience with AWS/Azure, Meraki/Cisco, PowerShell, virtualization, and enterprise security/monitoring tools.
• Experience with Jira or another ITSM/ticketing platform and AI or automation tooling.
• Equivalent education and experience will be considered.

Additional information

Occasional after-hours maintenance, emergency support, or travel may be required. Duties may change with business needs; this description is not exhaustive.