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LaStellar Group · New York
IT Manager / Senior Systems Administrator (Hands-On Player-Coach)
$23B Hedge Fund | NYC with travel to CT | 100% Onsite, 5 Days
$200–250K base | $325–350K total comp | US Citizens Only
A long-tenured IT leader is retiring, and this firm needs a hands-on player-coach to step in. It is not a people-manager seat. You'll still do the senior systems work every day while leading and mentoring a small desktop support team. The environment is about 85% Windows and 15% Linux, supporting roughly 170 people.
What you'll own
Active Directory and Entra ID: group design, service accounts, SPNs, app registrations, Graph API access and credential rotation
Microsoft 365 and Exchange Online: mail routing, mail security, DLP, retention, Teams, SharePoint and OneDrive
VMware vSphere and the Windows Server estate, plus physical servers (racking, cabling, diagnostics, part swaps)
Windows and Samba file servers: permissions, quotas, capacity and migrations
Networking and firewalls: TCP/IP, DNS, DHCP, VLANs, wireless, certificates and monitoring
Security: endpoint protection, MFA, conditional access, phishing simulations and alert response
IT controls in an audited environment: monthly access reviews, change management, exceptions and DDQ support
eDiscovery and legal hold searches with Legal and Compliance
Avaya PBX support and the move to an outsourced voice provider
Licensing, renewals and vendor management (M365, Adobe, Box, Bloomberg, Verizon and more)
Server room power and cooling: UPS, PDUs, HVAC and coordination with building vendors
PowerShell and Python automation
Leading and mentoring the desktop support team and serving as the top technical escalation point
What you bring
7+ years of hands-on enterprise infrastructure experience
Deep Windows Server, AD, M365 and MFA knowledge
Real experience with service accounts, Entra app registrations and credential management
VMware vSphere
A secure email gateway such as Proofpoint or Mimecast
Endpoint and data-governance tools such as CrowdStrike or Varonis
Strong PowerShell
Experience running IT controls in a regulated or audited setting
Experience leading projects with MSPs and vendors from start to finish
Nice to have
Financial services background
eDiscovery or legal hold experience
Bloomberg administration and entitlements
Avaya PBX experience
AWS or Azure
Ansible or PowerShell DSC
The details
100% onsite in NYC, with travel to CT and the firm's Westchester DR site as needed (transportation covered)
Occasional after-hours work for patching and recovery testing
US citizens only
If you're a doer who also likes to lead, message me directly.
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Details
| Company | LaStellar Group |
| Location | New York |
| Type | FULL TIME |
| Niche | Computer and Mathematical Occupations |