System Administrator: 24/7 Ops, Automation & Security

asmexternalcareersite; San Antonio (TX); On-site; USD 70,000 - 110,000; Full time

Job summary

ASM Research is seeking a System Administrator - Journeyman in San Antonio, TX to maintain and secure enterprise infrastructure supporting 24/7 operations. You will perform hands-on administration of Windows and Linux servers, manage user access, and enforce security baselines.

The role requires DoD 8140 compliance, active Secret clearance, and US citizenship, with responsibilities spanning monitoring, patching, backups, automation, incident response, and on-call rotations in a mission-critical

Qualifications

• Bachelor’s degree in IT or related field or equivalent experience.
• 4+ years enterprise system administration and automation experience.
• Experience managing Windows and/or Linux servers in an enterprise environment.
• Hands-on monitoring, patch management, backup and recovery, and troubleshooting of hardware and software issues.
• Strong scripting skills: PowerShell, Bash, or Python for automation and operational improvements.
• Must meet DoD 8140 requirements and hold an active Secret clearance.
• Must be a US citizen.

Responsibilities

• Administer Windows and Linux servers, manage user accounts and group policies in accordance with procedures.
• Implement monitoring and alerting across the infrastructure (Nagios, Splunk, CloudWatch).
• Apply patches and vulnerability mitigations per change control baselines.
• Automate routine tasks using PowerShell, Bash, or Python.
• Configure and validate backup/recovery solutions for data protection.
• Analyze logs/metrics to detect anomalies and incidents; escalate/remediate.
• Troubleshoot issues across distributed environments; support 24/7 operations.
• Maintain system documentation and participate in incident response/on-call rotations.

Skills

PowerShell

Bash

Python

Windows Server

Linux Server

Automation

Incident response

Education

Bachelor's degree in IT, Cybersecurity, CS, IS, Data Science, SE, or related field

Tools

Nagios

Splunk

CloudWatch

VMware

AWS

Azure

Ansible

Terraform

Job description

ASM Research is seeking a System Administrator - Journeyman in San Antonio, TX to maintain and secure enterprise infrastructure supporting 24/7 operations. You will perform hands-on administration of Windows and Linux servers, manage user access, and enforce security baselines.

The role requires DoD 8140 compliance, active Secret clearance, and US citizenship, with responsibilities spanning monitoring, patching, backups, automation, incident response, and on-call rotations in a mission-critical