It Manager/Senior Systems Administrator Job Northern Kentucky USA,IT/Tech

Role: IT MANAGER/SENIOR SYSTEMS ADMINISTRATOR

Location:

New York City, NY or Old Greenwich, CT (5

Days a Week Onsite) Core responsibilities

Identity and access governance: Lead the administration of Active Directory architecture, group design, and the service-account estate: service principal names, Entra n registrations, Graph API access, and credential rotation through our password vault. Maintain existing access standards,run periodic access and service-account reviews, and evaluate and processaccess exceptions in accordance with established approval procedures.
File and storage services: administer the Windows and Sambafile-server estate across headquarters, the offsite datacenter, and remote offices; manage capacity, quotas, and monitoring; plan and execute server andshare migrations; oversee archiving, backup, and data-governance tooling.
Email and collaboration platforms: administer Microsoft 365 and Exchange Online, including mail routing, mail security and filtering, DLP,retention and journaling, and the Teams, SharePoint, and One Drive estate.
Server and virtualization infrastructure: build,patch, and maintain the Windows Server estate on VMware vSphere; hands-on workwith physical server hardware including racking, cabling, diagnostics, and component replacement.
Network and perimeter: Administer and troubleshoot TCP/IP, DNS,DHCP, VLANs, wireless networks, certificates, and infrastructure-monitoring platforms. Configure, monitor, and manage firewalls to enforce access controls and protect the corporate network against unauthorized access and cyberthreats. Manage telecom and ISP vendor relationships.
Security operations: administer endpoint protection,data-governance, and email-security platforms; manage multi-factor authentication, conditional access, and geographic access restrictions; run the security-awareness and phishing-simulation program; respond to alerts and vulnerabilities.
eDiscovery andlegal hold: perform mailbox and file searches insupport of subpoenas, regulatory requests, and litigation; preserve, collect,and produce data under the direction of counsel and Compliance, handling all ofit with strict confidentiality.
Telephony and voice services: support the current Avaya PBX, associated analog lines, and voice-service vendors; troubleshoot and coordinate resolution of telephony incidents, provisioning, and office moves. Assist with the planned transition of PBX operations to an outsourced provider and oversee the vendor relationship thereafter.
Automation: use Power Shell and Python to automate provisioning, reporting, andtask scheduling, and maintain our enterprise job scheduling platform.
License, subscription,and vendor governance: Oversee software and cloud-service entitlements, licensing, renewals, procurement, and vendor relationships. Review user licensing and assignments across platforms such as Adobe, Box, Microsoft 365/Intune, Visual Studio, Verizon, Bloomberg, and similar services. Recommend and implement subscription changes that appropriately align user access, device-management, security, operational needs, and vendor-licensing requirements.
Project and vendor coordination: Own the technical delivery of internal and vendor-led infrastructure and security projects from requirements gathering, scoping, resource planning, testing, and implementation through acceptance and documentation. Define and maintain project plans, timelines,dependencies, risks, action items, and internal and vendor resource needs;track progress, elevate issues, and coordinate stakeholders through completion.
Change management and IT control reviews: Maintain accurate records of material infrastructure, configuration, and access changes acrosson-premises systems, AWS, and managed-service-provider environments. Perform monthly reviews of Active Directory group membership, workstation configuration, local administrator access, server assignments, and system usageand monitoring; investigate and remediate discrepancies; and document findings,approvals, exceptions, and follow-up actions.
IT security oversight and policy compliance: Maintain operational controls that support IT policies, client and regulatory due-diligence questionnaires (DDQs), and external security representations.

Ensure documented policies, DDQ responses, and day-to-day practices remain aligned. Monitor and validate controls for password and credential rotation,service accounts, least-privilege access, patching and reboot compliance, andthe documentation, approval, and periodic review of…

It Manager​/Senior Systems Administrator

It Manager/Senior Systems Administrator