Top 3 Senior systems administrator it Jobs in Ithaca, Ny

Senior Systems Administrator - IT
Racker —Ithaca, NY
- $75,000 - $85,000 a year
- Full-time
- Hybrid work
- DevOps
- Children
- Senior level
- Paid holidays
- Retirement plan
Senior Systems Administrator, High Performance Computing
Cornell University —Ithaca, NY
- $107,682 - $131,611 a year
- Online Application
- Computer Science
- 5 years
- System design
- Health insurance
- Tuition reimbursement

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Senior Systems Administrator - IT
Racker —Ithaca, NY
Manage hybrid identity: Entra Connect sync, ADFS, hybrid Azure AD join, and troubleshooting (e.g., PRT acquisition, device state).
$75,000 - $85,000 a year
Senior Systems Administrator, High Performance Computing
Cornell University —Ithaca, NY
Bachelor’s degree in computer science or a related technical field with at least five years of experience managing Linux servers and HPC clusters, or an…
$107,682 - $131,611 a year

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Senior Systems Administrator
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Senior Systems Administrator - IT

Racker -
Ithaca, NY

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Job Details

Full-time
$75,000 - $85,000 a year

Benefits

Paid holidays
Retirement plan
Paid sick time

Qualifications

Cloud identity and access management (IAM)
GPO
Operating system updates
Microsoft Exchange
PKI
DHCP
Patch management
Email configuration (technical support)
Azure AD
DNS
Server virtualization
MFA
VPN management
PowerShell
Shell Scripting
Identity & access management

Full Job Description

Overview:

We are seeking an experienced Systems Administrator to own the day-to-day operation, security, and reliability of our Windows-based, hybrid-cloud IT environment. This is a hands-on senior role responsible for Active Directory and identity, Microsoft 365 / Entra ID, server and endpoint management, security hardening, monitoring, co-managed network infrastructure, and backup/disaster recovery across a multi-site organization (~30 locations).

The ideal candidate has deep Windows Server and Active Directory expertise, a security-first mindset, and the discipline to document and change-manage their work.

The IT Department at Racker supports service delivery for individuals with disabilities of all ages. This hard working team makes a difference by sustaining and enabling critical services in our community.

This is a hybrid On-site/remote position, based in Ithaca NY.

Starting Salary for this position: $75,000 - $85,000 commensurate with experience.

Our competitive benefits include a continuum of health care options for families and individuals, funding and time for continuing education, retirement investment with employer match, paid vacation for school holidays and breaks, paid sick time, and a 20% discount on childcare services for children/grandchildren of full time staff.

Responsibilities:

Identity & Access Management

Administer on-prem Active Directory: domain controllers, replication health, FSMO roles, Sites & Services, DNS, and Group Policy (design, testing, and staged fleet rollout).
Manage hybrid identity: Entra Connect sync, ADFS, hybrid Azure AD join, and troubleshooting (e.g., PRT acquisition, device state).
Administer Microsoft 365 / Entra ID: user lifecycle, licensing, Conditional Access, MFA enforcement, and Privileged Identity Management (PIM).
Maintain service-account hygiene, privileged-group reviews, and least-privilege access.

Security & Compliance

Drive security hardening initiatives.
Remediate penetration-test findings and apply security baselines.
Manage Windows Firewall policy centrally via GPO; maintain internal PKI/certificate lifecycle.
Maintain audit trails and operator attribution for sensitive actions.

Infrastructure & Operations

Manage the Hyper-V virtualization fleet, server lifecycle, and storage.
Administer multi-site network infrastructure: Fortigate VPN tunnels, UniFi wireless/switching, DHCP/DNS.
Plan and deploy Windows Updates fleet-wide; monitor and orchestration.
Own backup and disaster recovery: validate jobs, manage retention, and test restores.

Monitoring, Automation & Tooling

Operate and tune the Graylog SIEM and event-log pipeline; triage alerts across security platforms.
Develop and maintain PowerShell automation.
Maintain and extend internal operations tooling (custom dashboard, scheduled/automated reporting).
Use Azure DevOps for source control, CI/CD pipelines, work tracking, and documentation.

Documentation & Change Management

Maintain operational runbooks, change logs, and a knowledge-base wiki.
validate).

Support

Provide escalation support for endpoint, identity, email, and access issues; partner with help-desk operations on SLA-tracked tickets.

Qualifications:

4+ years of Windows Systems Administration in a production environment.
Deep, hands-on Active Directory expertise: GPO, DNS, DHCP, replication, FSMO, and AD security.
Strong PowerShell scripting/automation skills.
Solid Microsoft 365 / Entra ID administration experience (Exchange Online, Conditional Access, MFA).
Working knowledge of Windows Server, Hyper-V, and core networking (DNS, DHCP, VPN, firewalls).
Security fundamentals: hardening, least privilege, certificate/PKI basics, and patch management.
Comfort with version control (Git) and documentation discipline.

Our approach to Diversity and Inclusion -

"A world where all people know they belong."

Apply Now

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senior systems administrator it jobs in ithaca, ny

Senior Systems Administrator - IT

Senior Systems Administrator, High Performance Computing

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