Unix Administrator jobs in United States
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SAIC · 21 hours ago

Unix Administrator

SAIC is seeking a UNIX Administrator with hands-on experience in Cohesity backup and recovery solutions to join their team. The ideal candidate will manage and maintain UNIX/Linux systems while supporting enterprise backup environments and troubleshooting OS-level issues.

Information TechnologySecurityService IndustrySoftware
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Work & Life Balance
badNo H1BnoteU.S. Citizen Onlynote

Responsibilities

Manage, configure, and maintain UNIX/Linux systems (RHEL, CentOS, Ubuntu, AIX, or Solaris depending on environment)
Perform routine OS patching, kernel upgrades, system tuning, and security hardening
Monitor system performance and troubleshoot OS-level issues across compute environments
Manage user accounts, file systems, NFS, packages, permissions, and system services
Support shell scripting for automation and maintenance tasks (Bash, KSH, Python optional)
Administer and support Cohesity DataProtect clusters for enterprise backup operations
Configure protection jobs, policies, storage domains, and replication workflows
Monitor backup performance, job failures, capacity usage, and SLA compliance
Perform restores for files, VMs, databases, and workloads per business requests
Troubleshoot backup/restore issues and coordinate with vendors for escalation
Maintain documentation for backup processes, runbooks, and configuration baselines
Provide second- and third-level support for UNIX/Linux and Cohesity platforms
Collaborate with application teams, database teams, and storage/VMware admins for cross-functional support
Participate in on-call rotation for critical system and backup incidents
Maintain configuration management standards and adhere to IT security policies
Assist in planning and executing disaster recovery (DR) tests leveraging Cohesity
Develop automation scripts to streamline system maintenance and backup workflows
Identify gaps in resiliency, monitoring, and performance tuning and recommend improvements
Support migration projects, OS upgrades, Cohesity expansion, and infrastructure modernization efforts

Qualification

UNIX/Linux administrationCohesity DataProtectTroubleshooting skillsBackup conceptsScripting skillsSystem monitoring toolsVirtualization (VMware ESXi)Storage solutions administrationCloud-based backup integrationsITIL processesAutomation toolsCertifications (RHCSA/RHCE)

Required

BS and 5+ years of hands-on UNIX/Linux system administration experience.( 4 years experience in lieu of degree)
Ability to obtain and maintain a public trust requiring U.S. Citizenship
Practical experience with Cohesity DataProtect in an enterprise environment
Strong understanding of backup concepts (snapshots, replication, retention, RPO/RTO)
Experience with system monitoring tools (SCOM, ITOM, etc.)
Solid troubleshooting skills for OS, hardware, storage, and backup issues
Strong scripting skills in Bash, Shell, or Python
Ability to work in a fast-paced environment and support production systems

Preferred

Familiarity with virtualization (VMware ESXi) preferred
Experience administering storage solutions (NetApp, Dell EMC, Pure Storage, etc.)
Knowledge of cloud-based backup integrations (Azure)
Familiarity with ITIL processes (Incident, Change, Problem Management)
Experience with automation tools Azure Devops is a plus
Certifications such as RHCSA/RHCE, Cohesity Certified Administrator (CCA) are desirable

Company

SAIC specializes in IT, enterprise IT, engineering, and professional services.

Funding

Current Stage
Public Company
Total Funding
$522.13M
Key Investors
U.S. Geothermal
2025-09-22Post Ipo Debt· $500M
2010-09-13Post Ipo Equity· $22M
2006-10-13IPO

Leadership Team

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Prabu Natarajan
Chief Financial Officer
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Kevin F Brown
Senior Vice President, Chief Information Security Officer
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Company data provided by crunchbase