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Senior System Administrator
Job Location:
Job Location:
San Antonio, TX - USA
Monthly Salary:
Not provided by the employer
Monthly Salary:
Posted:
16 April 2026 (30+ days ago)
Posted:
Application Deadline:
30 September 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Job Description: System Administrator II
Location: Northwest San Antonio TX 78257
Job Type: Full Time On-Site Position
Experience Level: Mid-Level
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Job Summary
We are seeking a skilled and proactive System Administrator II to aid in the management maintenance and upgrade of our organizations IT infrastructure. We support three office sites in San Antonio Dallas and Houston. The ideal candidate will be responsible for ensuring high availability performance and security of our servers networks and systems. Good interpersonal communication skills are essential as the candidate will work with end users as well as peers and management. You will play a crucial role in preventing downtime implementing security protocols best practices policies and providing technical and operational support ensuring day-to-day operations run smoothly.
Key Responsibilities and Duties
Desired Certifications (Preferred)
* Microsoft Certified: Azure Administrator Associate or MCSE
* CompTIA Network or Security
* VMware Certified Professional (VCP)
Working Conditions
* May require occasional after-hours/weekend support to address critical system emergencies or schedule maintenance.
* Some travel might be required to remote offices.
* Ability to lift/transport server equipment (up to 40 lbs).
Location: Northwest San Antonio TX 78257
Job Type: Full Time On-Site Position
Experience Level: Mid-Level
please share your resume to emailprotected
Job Summary
We are seeking a skilled and proactive System Administrator II to aid in the management maintenance and upgrade of our organizations IT infrastructure. We support three office sites in San Antonio Dallas and Houston. The ideal candidate will be responsible for ensuring high availability performance and security of our servers networks and systems. Good interpersonal communication skills are essential as the candidate will work with end users as well as peers and management. You will play a crucial role in preventing downtime implementing security protocols best practices policies and providing technical and operational support ensuring day-to-day operations run smoothly.
Key Responsibilities and Duties
- Infrastructure Management: Install configure and maintain desktop operating systems (Windows/Apple) servers virtual environments (VMware) and have working knowledge of network hardware (routers switches firewalls wireless). Setup and support of VoIP (Spectrum) users and phones. Experience with Palo Alto Juniper Dell and Cisco a plus.
- Azure/EntraID/Microsoft 365/Intune: Have strong experience with Azure infrastructure support and troubleshooting. Will assist in designing deploying and support of Azure environments to support applications and infrastructure.
- Docker/Container Experience: Have working knowledge of containerization technologies to assist in support developing applications strategies.
- System Monitoring & Performance: Proactively monitor system performance (PRTG Azure) analyze logs and implement performance tuning to optimize efficiency. Ability to respond right away to critical alerts and communicate effectively.
- Security & Data Protection: Ensure system security through access controls user account management (Active Directory/Azure AD) antivirus (Sophos) protection and patching. Follows best practices guidelines and assists to maintain SOC and other regulatory compliance.
- Backup & Recovery: Assist in monitoring regular data backups and maintain test and execute disaster recovery plans to ensure business continuity. Veeam experience preferred.
- Troubleshooting: Diagnose and resolve hardware software and network issues promptly to minimize downtime.
- Automation & Scripting: Develop/understand scripts (e.g. PowerShell Bash Python) to automate routine tasks and improve efficiency.
- Documentation: Maintain/Develop comprehensive technical documentation including network diagrams SOPs and system configurations.
- Collaboration & Support: Collaborate with internal IT peers to implement new technologies and provide high-level support for end-users.
- Required Qualifications & Skills
- Experience: 5 years of experience as a System Administrator Network Administrator or similar role.
- Education: Bachelors degree in Computer Science Information Technology or a related field (or equivalent experience).
- OS Knowledge: Proficiency in Windows Server (2016/2019/2022) Windows Desktop (10/11). MacOS and Linux (Ubuntu) environments a plus.
- Networking: Strong understanding of networking concepts (TCP/IP DNS DHCP VLANs VPNs VoIP).
- Virtualization/Cloud: Experience with virtualization technologies (VMware vSphere/ESXi) and cloud platforms (Azure).
- Scripting: Proficiency in scripting languages (PowerShell Bash or Python) for automation.
- Soft Skills: Strong analytical problem-solving and troubleshooting skills with the ability to work independently or as part of a team.
- Communication: Excellent verbal and written communication skills.
Desired Certifications (Preferred)
* Microsoft Certified: Azure Administrator Associate or MCSE
* CompTIA Network or Security
* VMware Certified Professional (VCP)
Working Conditions
* May require occasional after-hours/weekend support to address critical system emergencies or schedule maintenance.
* Some travel might be required to remote offices.
* Ability to lift/transport server equipment (up to 40 lbs).
Required Experience:
Senior IC
About Company
Thanks for visiting our Career Page. GES provides a people centric approach, to deliver innovative technology solutions that offer measurable value to our clients. Our network of highly skilled talent, and integrated onsite / offsite delivery model offers our clients flexibility, scal ... View more
