Senior System Administrator

Job Description

Job Description: Role Summary

**THIS IS A 5 DAYS ONSITE POSITION**

Seeking an experienced IT Infrastructure Support Consultant to provide operational support for desktop systems, Active Directory administration, endpoint management in OT (Operational Technology) computing environments. The consultant will also provide backup and supplemental support to a Server Administrator responsible for Windows, Linux, and VMware infrastructure.

Primary Responsibilities

Support desktop and laptop systems used within transportation and Operational Technology (OT) environments.

Create, maintain, and deploy hardened desktop and laptop images in accordance with cybersecurity and operational standards.

Provide Active Directory administration, including:

*User account management

*Password resets

*Group membership administration

*Organizational Unit (OU) management and assignments

Support Microsoft SCCM/MECM administration, including software deployment, patch management, and endpoint compliance.

Troubleshoot hardware, operating system, and application issues for maintenance and operational teams.

Maintain documentation for desktop builds, configurations, and operational procedures.

Coordinate with cybersecurity personnel to ensure compliance with security baselines and vulnerability remediation activities.

Secondary Responsibilities

Provide support and coverage for the Server Administration team as needed.

Assist with:

Windows Server deployment and administration Linux server deployment and administration VMware vSphere/ESXi virtual infrastructure support System patching and maintenance activities Basic server troubleshooting and operational support

Required Skills and Experience

Strong experience administering Microsoft Active Directory.

Experience with Organizational Units (OUs), Group Policy, account administration, and domain services.

Experience creating and maintaining secure desktop and laptop images.

Experience administering Microsoft SCCM/MECM for software deployment and patch management.

Windows desktop support experience in enterprise environments.

Familiarity with cybersecurity hardening standards and secure system configurations.

Experience supporting operationally critical systems and users.

Preferred Skills

Experience supporting Operational Technology (OT) environments.

Windows Server administration experience.

Linux administration experience.

VMware vSphere/ESXi experience.

Understanding of networking fundamentals.

Experience supporting transportation, industrial, or critical infrastructure environments.