Systems Administrator with Security Clearance

Systems Adminstrator McLean, VA Salary Range: $190-210k Cornerstone Defense has an immediate need for a Linux System Engineer supporting a program comprised of linux (80%), windows (20%), virtualization, storage, network, HW, and data center engineers. The team offers rewarding opportunities to think outside the box in order to deliver innovative and sustainable IT environments to our customers.

The system administrators work both independently and as a member of an integrated product team supporting a wide variety of basic and complex computing and network configurations and must have proven Linux experience. As a contributor to the intelligence community's first multi-cloud initiative, you will be at the epicenter of emergent cloud computing technologies establishing a foundation that will evolve to include all agencies within the IC Specific duties and responsibilities of the Linux System Engineer may include, but are not limited to:

• Architecting, deploying, and managing large Linux networked environments including deployment and configuration
• Needs to know Linux really well and have a working understanding of Rocky 9 and Kubernetes
• Installing, configuring, updating and removing system and application software
• Hardening Linux serverinstallations
• Installing, configuring, updating and removing system hardware (servers, workstations, transceivers, network interface cards)
• Configuring NFS, SAMBA, and SAN
• Monitoring and allocating system resources (CPU, memory, and storage space)
• Proven experience creating, implementing, and maintaining scripts for process automation, infrastructure monitoring, and proactive reporting
• Auditing system log files, to include compliance audits
• Diagnosing and troubleshooting hardware and software problems
• Documenting hardware and software configurations, maintenance history, and backup history
• Implementing up-to-date system policies and procedures
• Updating/patching system operating systems
• Proven experience in all aspects of managing large Linux environments including the use of configuration management tools like Puppet and Ansible for centralized management and configuration of systems to enforce security contr ols
• Ability to utilize analysis tools to resolve complex network, systems, and application performance problems
• Responding to inquiries concerning all aspects of computer and network operations
• Creating and managing user/group accounts (ex: Active Directory (AD)) Minimum Qualifications and Education:
• Bachelor's Degree in computer science, information systems, engineering, mathematics, or equivalent experience, and six (6) years of relevant experience (see below bullets). Fourteen (14) years of equivalent military training and/or experience in an information technology field will be considered in lieu of a degree.
• Five (5) years or more of total intelligence community relevant work experience as a system administrator
• Five (5) years' experience as a system administrator