Systems and Network Administration

Gonzaba Medical Group; San Antonio (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

Gonzaba Medical Group seeks an IT Administrator to manage AD, Group Policy, and network infrastructure. You will support operational goals, collaborate with stakeholders, and drive improvements in systems and security posture.

The role emphasizes BitLocker deployment, network troubleshooting using tools like Wireshark and NetFlow, and documenting configurations. Strong IT support and incident response skills are essential.

Qualifications

• Experience administering Active Directory and Group Policy.
• Hands-on network infrastructure administration and security.
• Ability to deploy and manage BitLocker across devices.
• Strong IT support capabilities and incident response awareness.
• Willingness to document systems and configurations.

Responsibilities

• Implements and maintains AD and GP per best practices.
• Supports deployment and management of BitLocker across org.
• Maintains system documentation and change records.
• Manages network devices, including VLANs and firewalls.
• Responds to incidents and supports security policy compliance.
• Coordinates with IT vendors and internal teams for outages.

Skills

Active Directory

Group Policy

Network administration

BitLocker

Security monitoring

IT support

VLAN configuration

Wireshark

NetFlow

VPN management

Education

Bachelor's degree in IT or related field

Tools

Wireshark

NetFlow

VPN appliances

Job description

General Summary

Reports to the Operations Manager, who provides objectives, timelines, resources, and responsibilities. This position is responsible for the administration of various systems, platforms, and network infrastructure, as well as providing support for operational goals and objectives. This role works collaboratively with other team members and stakeholders to assist in planning and implementing information technology projects and is challenged to improve both systems and network operational functionality.

General Summary

Reports to the Operations Manager, who provides objectives, timelines, resources, and responsibilities. This position is responsible for the administration of various systems, platforms, and network infrastructure, as well as providing support for operational goals and objectives. This role works collaboratively with other team members and stakeholders to assist in planning and implementing information technology projects and is challenged to improve both systems and network operational functionality.

Supervisory Responsibilities

General Requirements:

This position has no supervisory responsibilities.

All duties performed will be done accurately and in a timely manner.

• Implements and maintains Active Directory and Group Policy according to industry best practices, aligned with operational goals and objectives. Manages Group Policy application across systems, including security initiatives such as machine hardening and BitLocker.


• Supports the management, maintenance, and implementation of system deploying BitLocker throughout the organization.


• Responsible for user maintenance, and implementation or systems deploying BitLocker throughout the organization.


• Supports enterprise-wide business continuity and disaster recovery processes.


• Works with the IT support team, both internal and contracted, to support deployment, monitoring, maintenance, and upgrades of all company systems and infrastructure, including servers, storage, databases, network devices, and associated software and hardware.


• Responsible for documenting systems, processes, and network configurations on an ongoing basis.


• Utilizes a ticketing system for change management and end-user support, including all hardware, software, and network-related modifications or requests.


• Supports centralized event collection from all systems and network devices, ensuring integrity and retention.


• Supports incident response by managing user access, validating system and network security policies, and participating in mitigation of potential security threats.


• Manages and monitors network infrastructure including switches, routers, wireless access points, firewalls, and VPN appliances. Performs network segmentation, VLAN configuration, and ensures secure and efficient traffic flow.


• Performs network troubleshooting to identify performance bottlenecks, packet loss, and connectivity issues using diagnostic tools such as Wireshark, NetFlow analyzers, or built-in device utilities.


• Implements and maintains firewall policies, NAT rules, and access control lists (ACLs) in alignment with security policies and compliance requirements.


• Coordinates with internet service providers (ISPs), telecom vendors, and cloud providers to ensure connectivity, availability, and timely resolution of outages.


• Maintains strict confidentiality.


• Other duties as assigned.