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Senior Systems Administrator

New York, NY, US • Posted 10 hours ago • Updated 10 hours ago

Full Time

On-site

$160000 - $210000/yr

Fitment

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Job Details

Skills

IT Management
IT Operations
Storage
Enterprise Software
Productivity
Mentorship
Technical Support
Network
Backup
Disaster Recovery
Business Continuity Planning
Regulatory Compliance
System On A Chip
Microsoft Operating Systems
Microsoft Windows Server
Active Directory
Dragon NaturallySpeaking
DNS
DHCP
Group Policy
Distributed File System
Microsoft WSUS
Hyper-V
Remote Desktop Services
Microsoft
Cloud Computing
Microsoft Azure
SAN
Virtual Machines
Microsoft Windows
Microsoft Office
Linux
Debian Linux
Fedora
Management
Amazon Web Services
Google Cloud Platform
Google Cloud
Scripting
Windows PowerShell
Wireless Communication
Aruba
Computer Networking
Computer Science
Information Systems
Accountability
Organized
FOCUS
Documentation
Continuous Improvement
ROOT
Financial Services

Summary

Job Title: Senior Systems Administrator
Location: 4-5 Days On-Site, NYC

*Must be located/authorized to work in the US without visa sponsorship or transfer now or in the future. No C2C inquiries, please*

The Role
This team is looking for a senior Systems Administrator with deep expertise in Windows environments and Microsoft cloud technologies to take ownership of day-to-day IT operations. This person will be a hands-on technical lead, responsible for maintaining stability, driving improvements, and supporting a high-performance corporate environment.

You'll serve as the key link between the Head of IT and on-the-ground execution, bringing both strong technical depth and the ability to introduce structure, documentation, and scalable processes as the organization grows.

What You'll Do - IT Operations & Infrastructure

Oversee daily administration of Windows-based systems, including Active Directory, Entra ID, DNS, DHCP, Group Policy, DFS, WSUS, Hyper-V, and Terminal Services
Manage Microsoft cloud environments across M365 and Azure (Entra ID, Storage, Enterprise Apps, Networking, VMs)
Support Windows 10/11 endpoints and core productivity tools
Administer endpoint management and device security platforms
Troubleshoot complex issues across hybrid (on-prem + cloud) environments
Support multi-site, multi-domain, hybrid Active Directory setups

What You'll Do - Process, Support & Enablement

Define and implement best practices for troubleshooting, ticketing, and escalation
Train and mentor junior team members to elevate overall team capability
Build and maintain clear documentation, SOPs, and operational runbooks
Deliver high-quality end-user support across phone, email, chat, and remote channels
Ensure a polished, high-touch experience for all users, including executives
Partner with the Head of IT on specialized support needs (e.g., principal/residential tech)

What You'll Do - Systems, Network & Security

Diagnose root causes and proactively prevent recurring issues
Support enterprise WiFi systems (e.g., Aruba)
Apply networking and security best practices in daily operations
Participate in on-call escalation as needed
Contribute to backup, disaster recovery, and business continuity planning
Support compliance initiatives (e.g., SOC 2, financial services standards)

What They're Looking For

Strong experience with Windows Server ecosystem (Active Directory, DNS, DHCP, Group Policy, DFS, WSUS, Hyper-V, Terminal Services)
Expertise in Microsoft cloud platforms (M365, Azure, Entra ID, Storage, Networking, VMs)
Proficiency with Windows 10/11 and Microsoft Office suite
Experience administering Linux systems (Debian, Fedora)
Skilled in troubleshooting complex infrastructure issues
Experience managing hybrid AD environments across multiple domains/sites
Familiarity with Google Workspace
Experience with endpoint management tools and device security
Exposure to AWS and/or Google Cloud Platform
Scripting experience (e.g., PowerShell)
Knowledge of enterprise WiFi systems (e.g., Aruba)
Solid understanding of networking and security fundamentals
Bachelor's degree in Computer Science, Information Systems, or a related field-or equivalent hands-on experience and certifications.

Who You Are

Takes full ownership and accountability for systems and outcomes
Stays composed under pressure and exercises strong judgment
Brings a service-first mindset, especially when supporting executives and end users
Communicates clearly, translating technical concepts into business terms
Naturally organized, with a focus on process, documentation, and continuous improvement
Proactive in identifying risks and solving root causes-not just symptoms
Thrives in fast-paced, high-expectation environments
Handles sensitive information with discretion and professionalism
Experienced in demanding environments such as financial services or similar
Collaborative team player who contributes to overall team success

$160-210K. Flexibility with experience.
#LI-EO1

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10105282
Position Id: 872261
Posted 10 hours ago

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