Infrastructure Systems Administrator

The HT Group; San Marcos (TX); On-site; USD 70,000 - 90,000; Full time

Job summary

The HT Group is seeking an Infrastructure Systems Administrator in San Marcos to design, implement, and optimize our server and infrastructure environments. You will monitor health, manage backups, enforce security, and collaborate with IT leadership to ensure reliability and performance across production, development, and test systems.

This role requires 3–5 years of systems administration, a bachelor’s degree or equivalent, and hands-on experience with Windows Server, VMware, cloud platforms,

Qualifications

• Experience with server and infrastructure administration in Windows and Linux environments.
• Strong troubleshooting skills and ability to resolve complex technical problems with minimal supervision.
• Ability to read and interpret technical docs and diagrams.
• Travel; willingness for after-hours support as needed.

Responsibilities

• Install, configure, maintain, and support physical and virtual servers.
• Monitor performance and capacity; address issues before they impact operations.
• Troubleshoot production server and infra issues; after-hours support when needed.
• Participate in capacity planning and lifecycle management.
• Maintain backup and disaster recovery strategies; test restores.
• Enforce security standards and patch management.
• Create deployment and configuration documentation.
• Develop automation scripts to improve efficiency.
• Collaborate with internal users, vendors, and teams.
• Stay current with tech knowledge through training.
• Travel occasionally as business requires.

Skills

Troubleshooting

Communication

Organizational skills

Multitasking

Documentation skills

Education

Bachelor's degree in IT/CS or equivalent

Tools

Windows Server

Active Directory & Group Policy

TCP/IP, DHCP, DNS

VMware / virtualization

VDI / Virtual Desktop

Hyperconverged infrastructure

SAN (iSCSI & Fibre Channel)

Cloud platforms (Azure, Google Cloud)

Linux (Red Hat / Debian)

Scripting / automation

Job description

Infrastructure Systems Administrator (BH-20469)

Location San Marcos, United States Sector IT

The Infrastructure Systems Administratorsupports the design, implementation, maintenance, and optimization of the organization’s server and infrastructure environments. Working closely with IT leadership, this role helps ensure the reliability, security, availability, and performance of production, development, and test systems. The ideal candidate is a proactive infrastructure professional who can monitor system health, resolve complex technical issues, maintain documentation, and contribute to long-term capacity and infrastructure planning.

Key Responsibilities

• Install, configure, maintain, and support physical and virtual servers.
• Monitor infrastructure performance, availability, and capacity to identify and resolve potential issues before they affect operations.
• Troubleshoot production server and infrastructure issues, including occasional after‑hours or weekend support when necessary.
• Participate in infrastructure capacity planning and lifecycle management.
• Maintain an effective backup and recovery strategy and regularly validate it through testing and restoration exercises.
• Implement and enforce security standards and best practices to protect systems, applications, and organizational data.
• Maintain current operating system security patches, feature updates, and configuration standards.
• Perform server hardware upgrades, replacements, and preventive maintenance.
• Create and maintain documentation for infrastructure deployments, configurations, procedures, standards, and architecture diagrams.
• Research emerging technologies and recommend solutions that may improve infrastructure reliability, security, or performance.
• Develop scripts, batch files, and automated processes to improve operational efficiency.
• Collaborate with internal users, technical teams, customers, and external vendors as needed.
• Maintain current technical knowledge through ongoing research, training, and professional development.
• Travel occasionally, including overnight travel, as business needs require.

Required Qualifications

• Three to five years of systems administration, infrastructure engineering, or related technical experience.
• Bachelor’s degree in information technology, computer science, or a related field, or an equivalent combination of education and relevant professional experience.
• Advanced hands‑on experience with:
  • Windows Server
  • Active Directory and Group Policy
  • TCP/IP, DHCP, and DNS
  • VMware or comparable virtualization platforms
  • Virtual desktop infrastructure or Virtual Desktop Access
  • Hyperconverged infrastructure
  • Storage area networks, including iSCSI and Fibre Channel
  • Microsoft Azure, Google Cloud, or comparable cloud platforms
• Working knowledge of Linux environments, including Red Hat- and Debian‑based distributions.
• Experience creating scripts, batch files, or automated administrative processes.
• Strong troubleshooting skills and the ability to resolve complex technical problems with minimal supervision.
• Ability to read and interpret technical documentation, diagrams, schedules, and regulatory materials.
• Strong written and verbal communication skills, including the ability to communicate technical information to leadership, users, vendors, and external stakeholders.
• Strong organizational, prioritization, multitasking, and follow‑through skills.
• Willingness to provide occasional after‑hours support to protect business continuity.
• Current driver’s license and required automobile liability insurance.
• Ability to travel, including occasional overnight stays.

Preferred Qualifications

• Current or previous VMware certification.
• Experience supporting production, development, and test environments.
• Experience with infrastructure capacity planning, backup validation, disaster recovery, and system lifecycle management.
• Familiarity with infrastructure security standards and hardening practices.

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