Senior Network & System Administrator

SENIOR NETWORK AND SYSTEM ADMINISTRATOR

INFORMATION TECHNOLOGY DEPARTMENT

 

 POSTED:2/20/2025

 

Program Summary

NYCJA’s Information technology team provides strategic vision, leadership, and innovative solutions so that our 300+ staff at 13 locations have the trusted data and applications they need to provide high quality pretrial services and research.  IT staff have strong customer focus, partnering with business units and stakeholders to pilot new programs, and create custom applications with an eye towards future business needs. Our dedicated professionals meet challenges head-on by being flexible, expecting change and supporting each other in a culture of mutual respect, trust and teamwork that encourages personal and professional growth. 

 

Job Summary: 

The Senior Network and System Administrator manages and maintains CJA’s network and system infrastructure endpoints, onsite and Azure cloud servers, and services.  This position is key in maintaining the stability and security of our IT infrastructure and involves diagnosing and resolving technical issues, installing, and configuring hardware and software, and providing technical support and assistance to Agency staff.  The position is based in lower Manhattan, requiring some travel to other agency locations throughout NYC as well as participation in a scheduled on-call rotation. The ideal candidate will have excellent problem-solving skills, strong communication abilities, and a customer-focused approach. 

IT Systems Administrator Responsibilities: 

• Manage Active Directory, Azure Entra ID, Microsoft Dynamics, and Office 365 (Exchange, SharePoint, Teams, OneDrive), including user access, security, compliance, and troubleshooting. 

• Administer Windows updates, patches, and security fixes across servers and client devices. 

• Install, configure, and maintain VMware vSphere, vCenter, SAN, vSAN, and ESXi environments. 

• Automate tasks using PowerCLI, Python, or Ansible. 

• Deploy, configure, and support Microsoft Intune for endpoint management and security. 

• Oversee Systems Management Appliance for network discovery, software deployment, asset tracking, and security policy enforcement. 

• Manage and ensure compliance with Azure resources (servers, networks, storage) in commercial and government environments. 

 
Network Administration & Support Responsibilities: 

• Configure and maintain network devices (routers, switches, firewalls, servers). 

• Monitor and optimize network health, performance, and security to prevent threats and ensure compliance. 

• Analyze network trends and plan infrastructure upgrades as needed. 

• Manage vendor relationships for network and IT services. 

IT Support & Maintenance Responsibilities: 

• Technical Support and Leadership: Provide A/V setup, assist with meetings, and support remote offices with network and infrastructure issues and ensure quality service delivery, stability, and flexibility. 

• On-Call Coverage: Available