System Administrator Linux

United States·MorrisvilleFull-timemid

OtherSystem Administrator

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Computer World Services Corp (CWS) is seeking a detail-oriented and results-driven System Administrator – Linux who is responsible for the advanced administration, configuration, optimization, and operational support of enterprise Linux server environments within a mission-critical Data Center. This role supervises and manages the daily operation of Linux-based systems, ensuring high availability, performance, security compliance, and efficient resource utilization.

This position also provides oversight and operational support for enterprise storage and backup systems to ensure data integrity, recoverability, and compliance with Federal and NIH standards.

Supervise and manage daily configuration and operation of Linux-based servers and associated client/server systems
Install, configure, patch, and maintain Red Hat Enterprise Linux (RHEL) and other Linux distributions
Monitor system performance, availability, and resource utilization across enterprise environments
Perform system tuning and optimization to ensure maximum efficiency and stability
Provide advanced troubleshooting for complex Linux system issues

Plan and monitor system operations, including workload balancing and capacity utilization
Conduct system capacity analysis and forecasting to support infrastructure growth and scalability
Monitor system logs, performance metrics, and alerts to proactively identify and resolve issues
Ensure system availability and compliance with established SLAs and operational standards

Plan and monitor assistance to users in accessing and utilizing Linux-based business systems
Support authentication, authorization, and access control mechanisms (e.g., LDAP, Active Directory integration)
Troubleshoot user access and system connectivity issues in enterprise environments

Administer and support enterprise storage environments including SAN, NAS, DASD, and RAID systems
Monitor storage utilization, capacity trends, and performance metrics
Support storage provisioning, allocation, and lifecycle management
Assist in optimizing storage performance and resolving I/O bottlenecks
Ensure storage systems comply with security, encryption, and data governance standards

Support enterprise backup and recovery systems across Linux servers and storage platforms
Ensure backups are executed successfully in accordance with established schedules and policies
Perform and validate system and data restoration activities, including file-level and system-level recovery
Participate in disaster recovery testing, including semi-annual and ad hoc restoration exercises
Ensure compliance with Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO)
Monitor backup integrity, job success rates, and storage media reliability

Support integration of Linux systems with enterprise infrastructure including storage, database, and network services
Assist in planning, design, and implementation of system upgrades and infrastructure enhancements
Perform system patching, upgrades, and lifecycle management in accordance with security requirements
Coordinate with cross-functional teams including database, storage, and application administrators

Monitor system health, performance, and availability across Linux environments
Maintain documentation of system configurations, procedures, and operational standards
Provide regular reports on system utilization, capacity, and incident trends
Document maintenance activities, changes, and system performance metrics

Red Hat Enterprise Linux (RHEL) administration and support
Linux system performance tuning and troubleshooting
Enterprise storage systems (SAN, NAS, DASD, RAID)
Backup and recovery systems (enterprise backup solutions)
System capacity planning and resource optimization
TCP/IP networking fundamentals and system connectivity troubleshooting
User authentication and access management (LDAP/Active Directory integration)

Nice to Have

~1 min read

Experience supporting Federal or NIH IT environments
VMware virtualization environments (vCenter, ESXi)
Experience with scripting (Bash, Python, or PowerShell)
Familiarity with cloud environments (e.g., Azure or hybrid infrastructure)
ITIL Foundation certification or IT service management experience
Experience with monitoring tools (e.g., SolarWinds, Nagios, Splunk, or equivalent)

Strong analytical and troubleshooting skills
Ability to manage mission-critical Linux environments
Capacity planning and performance optimization expertise
Strong communication and documentation skills
Ability to work independently and as part of a cross-functional team
Operational discipline in high-availability environments

Bachelor’s degree in Computer Science, Information Systems, Engineering, or related field

5–8 years of experience in Linux system administration within enterprise environments
Experience supporting large-scale Data Center operations
Experience with enterprise storage and backup systems
Demonstrated experience managing software lifecycle and configuration management processes