Unix Administrator

Job ID 2512318

Location WASHINGTON, DC, US

Date Posted 2025-12-11

Category Information Technology

Subcategory IT Systems Engineer

Schedule Full-time

Shift Day Job

Travel No

Minimum Clearance Required None

Clearance Level Must Be Able to Obtain Public Trust

Potential for Remote Work No

Description

SAIC is seeking a UNIX Administrator with hands-on experience in Cohesity backup and recovery solutions to join our team. The ideal candidate will have strong UNIX/Linux administration expertise, solid troubleshooting capabilities, and a background in supporting enterprise backup environments using Cohesity and Veritas.

Key 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.
  
  

Qualifications

Required Qualifications

• 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.
• Familiarity with virtualization (VMware ESXi) preferred.
• Strong scripting skills in Bash, Shell, or Python.
• Ability to work in a fast-paced environment and support production systems.
  
  

Desired

• 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.
  
  

Target salary range $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.