Senior Systems Administrator

Job Description

We're searching for a Senior Systems Administrator , someone who's ready to be part of the best ranked children's hospital in Texas, and among the best in the nation. In this position, you will maintain and administer software and hardware on major hospital systems. Consults and assists with new and existing applications hardware architecture, operating system and layered products installation and upgrades, capacity planning, systems administration, systems programming, performance monitoring, file systems management; research, tests, and participates in standards development; and problem resolution in a technologically advanced cluster of platforms.
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Job Duties & Responsibilities

• Administers enterprise Windows Server environments, including installation, configuration, upgrades, and maintenance.
• Manages Active Directory integration, Group Policy, DNS, DHCP, certificate services, and related infrastructure components.
• Performs operating system troubleshooting and root cause analysis for server-related issues.
• Maintains server security baselines and implements hardening standards in accordance with organizational policies.
• Supports server lifecycle management, including build, deployment, upgrades, and decommissioning activities.
• Plans, coordinates, and implements operating system and infrastructure patching activities.
• Reviews vulnerability reports and remediates security findings within established service level requirements.
• Validates patch deployments and ensures compliance with organizational security standards.
• Works with application owners to coordinate maintenance windows and minimize operational impact.
• Documents patching activities and provides compliance reporting to management.
• Administers enterprise compute infrastructure, including physical and virtual server platforms.
• Manages VMware, Hyper-V, or other virtualization technologies.
• Monitors and optimizes CPU, memory, storage, and network resource utilization.
• Performs capacity planning and recommends infrastructure upgrades.
• Supports provisioning, migration, and optimization of virtual and physical workloads.
• Identifies and resolves performance bottlenecks impacting infrastructure services.
• Develops PowerShell and other automation scripts to streamline operational tasks.
• Implements automated monitoring, reporting, and remediation capabilities.
• Maintains operational documentation, standards, and procedures.
• Participates in on-call support and incident response activities for critical infrastructure systems.

Skills & Requirements

• Required H.S. Diploma or GED with a preferred bachelor's degree in computer science
• A bachelor's degree will substitute for 4 years of experience
• Required 7 years' experience in administration of enterprise-level systems

About Us

Since 1954, Texas Children's has been leading the charge in patient care, education and research to accelerate health care for children and women around the world. When you love what you do, it truly shows in the smiles of our patient families, employees and our numerous accolades such as being consistently ranked as the best children's hospital in Texas, and among the top in the nation by U.S. News & World Report as well as recognition from Houston Business Journal as one of this city's Best Places to Work for ten consecutive years.


Texas Children's comprehensive health care network includes our primary hospital in the Texas Medical Center with expertise in over 40 pediatric subspecialties; the Jan and Dan Duncan Neurological Research Institute (NRI); the Feigin Tower for pediatric research; Texas Children's Pavilion for Women, a comprehensive obstetrics/gynecology facility focusing on high-risk births; Texas Children's Hospital West Campus, a community hospital in suburban West Houston; Texas Children's Hospital The Woodlands, the first hospital devoted to children's care for communities north of Houston; and Texas Children's Hospital North Austin, the new state-of-the-art facility providing world-class pediatric and maternal care to Austin and Central Texas families. We have also created Texas Children's Health Plan, the nation's first HMO focused on children; Texas Children's Pediatrics, the largest pediatric primary care network in the country; Texas Children's Urgent Care clinics that specialize in after-hours care tailored specifically for children; and a global health program that is channeling care to children and women all over the world. Texas Children's Hospital is affiliated with Baylor College of Medicine, one of the largest, most diverse and successful pediatric programs in the nation.

To join our community of 15,000+ dedicated team members, visit texaschildrenspeople.org for career opportunities.

Texas Children's is proud to be an equal opportunity employer. All applicants and employees are considered and evaluated for positions at Texas Children's without regard to mental or physical disability, race, color, religion, gender, national origin, age, genetic information, military or veteran status, sexual orientation, gender identity, marital status or any other protected Federal, State/Province or Local status unrelated to the performance of the work involved.