System Administrator Journeyman
Dunhill Professional Search & Government Solutions · San Antonio, TX · 1 wk ago
RemoteRemoteInformation Technology$80k–$110k/yrFull-time
The System Administrator - Journeyman maintains and secures enterprise systems infrastructure supporting continuous operations in a mission-critical environment. This role performs hands-on administration of servers, user access, and system configurations while ensuring compliance with operational and security policies.
Key Responsibilities
- Administer Windows and/or Linux servers, including user account management, permissions, group policies, and system configurations in accordance with established operational procedures.
- Implement and maintain system monitoring and alerting tools (e.g., Nagios, Splunk, CloudWatch) to provide performance and security visibility across the infrastructure.
- Apply patches, updates, and vulnerability mitigations in alignment with approved security baselines and change control processes.
- Automate routine administrative tasks using scripting languages such as PowerShell, Bash, or Python to improve efficiency and reduce operational risk.
- Configure and validate backup and recovery solutions to ensure data protection and continuity for critical systems and applications.
- Analyze system logs and metrics to detect anomalies, performance degradation, and potential security incidents, escalating and remediating as needed.
- Troubleshoot hardware, operating system, and application issues across distributed environments, serving as a primary contact for incident resolution.
Required Qualifications
- Requires a Bachelor’s degree (or equivalent experience) in IT, Cybersecurity, Computer Science, Information Systems, Data Science, Software Engineering, or related field.
- At least 4 years of enterprise system administration and automation experience, typically 3-6 years in a systems administrator or related infrastructure role.
- Demonstrated experience managing Windows and/or Linux servers, user accounts, permissions, and group policies in an enterprise environment.
- Hands-on experience with system monitoring, patch management, backup and recovery, and troubleshooting of hardware and software issues.
- Strong proficiency with scripting languages (e.g., PowerShell, Bash, or Python) for task automation and operational improvements.
- Must meet DoD 8140 requirements (Security+ certification) and hold an active Secret clearance.
- Must be a US Citizen.
Preferred Qualifications
- DoD 8140-compliant certification such as Security+ or equivalent.
- Experience with virtualization or cloud platforms (e.g., VMware, AWS, Azure).
- Familiarity with infrastructure-as-code tools (e.g., Ansible, Terraform) and modern automation frameworks.
- Experience supporting 24/7 operations, including incident response and on-call participation in a mission-critical environment.
salary range: $80,000-$110,000