Systems Administrator- Senior

Under limited supervision, responsible for activities related to Systems Administration and the integration with server operating systems and applications. May lead or mentor lower level team members. Applicants local to the San Antonio area are highly preferred. Although the position is primarily remote, the position may require on-site visits as needed. Responsible for systems administration activities, including the use of automation, scripting, and standardized procedures to support Linux server operations, backups, patching, and integration with enterprise applications. Perform system installation, configuration, patching, upgrades, and lifecycle management. Troubleshoot complex OS‑level, performance, and availability issues. Manage system services, storage, file systems, logging, and scheduled tasks. Understanding of server applications and integration with Active Directory and ERP systems. Experience with VMware and ESXi; Experience configuring applications to connect to backend databases using MSSQL and/or other databases. An understanding of SSL with the ability to install and configure certificates. Ability to work in a team environment with the ability to tactfully discuss issues with peers and leaders. Participate in an on-call rotation that includes occasional after hours and weekend work. Excellent verbal and written communication skills.

EDUCATION

Bachelor's Degree degree in Computer Science, Management Information Systems or IT required.

EXPERIENCE

Five (5) years of relevant experience in IT and systems administration is required. Administer, maintain, and support enterprise Linux systems to ensure high availability, performance, and reliability. Ensure systems are patched and hardened in alignment with organization policies. Develop and maintain automation and scripting to improve system consistency and operational efficiency. Provides systems management services, support, and product expertise for the implementation and knowledge transfer of server applications across the enterprise and various customer accounts. Provides tier 2/3 technical support and serves as systems person on-call for problem resolution. Provides root-cause analysis and documentation for system and application integration related problems and implements solutions. Ensures long-term requirements of systems operations and administration are included in the overall information systems planning of the organization. Collaborate with infrastructure, security, storage, and application teams to support enterprise platforms and services, ensuring operational consistency, adherence to standards, and alignment with security and compliance requirements. Create and maintain technical documentation, standards, and procedures, and leverage system logs, metrics, and platform analytics to support troubleshooting, operational consistency, and guidance to junior administrators. Performs all other duties as assigned.