TIEN0351848-0000
2025-07-27T00:00:00
2025-07-31T00:00:00
Tiegerman is a non-profit organization that works with students and adults with developmental disabilities (preschool through adulthood). Tiegerman School consists of six campuses throughout Nassau and Queens. Tiegerman Community Services operates in Suffolk, Nassau and Queens. This position will be based out of our Glen Cove, NY location. This is a full time position (in-person) with benefits eligibility.We are seeking a highly skilled Network Administrator with strong experience in network infrastructure, system administration, enterprise security, and cloud integration. This role is responsible for managing both on-premises and cloud-based environments, including installations, configurations, monitoring, troubleshooting, and documentation. Candidates must demonstrate proficiency with Microsoft 365, Active Directory, group policy management, networking, and cybersecurity best practices. Candidates currently serving under or those who possess the Nassau or Suffolk County Civil Service title of Network and System Administrator are encouraged to apply and will be considered strong matches for the role.Key Responsibilities:Administer Active Directory: manage domains, Group Policy Objects, and user provisioningMonitor and maintain system and network performance; perform preventive maintenanceConfigure and troubleshoot Cisco routers, switches, firewalls, and VoIP systems (RingDesign and deploy secure LAN/WAN solutions and implement firewall rules, IDS/IPS, and SIEM toolsManage Microsoft 365 services (Exchange, SharePoint, Teams) and associated security/compliance settingsOversee patching, upgrades, and system updates across server and client infrastructureCoordinate cloud storage migrations (e.g., OneDrive, SharePoint, Azure Files)Collaborate with IT teams and vendors to support infrastructure projects and enhancementsAnalyze vendor solutions and make recommendations to improve operational efficiencyMaintain clear and up-to-date technical documentationAssist with ticket escalation from Level 1 TechniciansCore Competencies:Advanced understanding of networking (TCP/IP, routing, switching)Strong skills in Microsoft 365 administration, Active Directory, and Group PolicyProficiency with Cisco hardware and network security tools (firewalls, IDS/IPS, SIEM)Experience with cloud integration and secure authentication mechanismsExcellent troubleshooting, analytical, documentation, and communication skillsAbility to lead and manage multiple projectsMinimum Qualifications:Education:Option A: Bachelor’s degree with 12+ IT-related credits and 4 years of relevant experienceOption B: High school diploma/GED and 8 years of relevant network/system experienceExperience:At least 5 years of relevant experience in the last 6 years.Minimum of 4 years in:Microsoft 365 administration, Intune and securityNetwork configuration, management, testing and root cause analysisActive Directory and Group PolicyRouting, firewalls, IDS/IPS, and SIEM toolsVoIP and wireless technologies in large-scale environmentsPreferred Certifications:Microsoft 365 Security Administrator AssociateCisco CCNP or CCDPCompTIA Security+, Network+, or equivalentTiegerman is an EEO and AA employer
Technology
The Tiegerman School
Long Island
Annual wage
Range