CACI International LINUX Systems Engineer in Mclean, Virginia

Job Description

Mandatory Skills:

  • Demonstrated experience performing Red Hat Enterprise Linux(RHEL) or CentOS Linux system administration to include user/group account management, file & directory administration, firewall modification, sudoers file modification, configuration of SSH, NTP, DNS, NFS, NIC bounding/teaming, port forwarding and system limits

  • Demonstrated engineering experience with the instllation and configuration of free open source software (FOSS) packages onto RHEL or CentOS platforms to include the compilation of source code and ensuring configuration meets Sponsor's security requirements.

  • Demonstrated engineering experience developing modules or scripts to harden systems using Center for Internet (CIS) Benchmarks or DISA STIC Checklists

  • Demonstrated administration experience with provisioning and securing virtual machines or EC2 instances in Sponsor's cloud hosting environment

  • Demonstrated experience with patch management, YUM repository configuration, and producing patch compliance reports to management

  • Demonstrated experience with systems health monitoring to include identification of resource (CPU, Memory, Network, and Storage) bottlenecks and developing remediation to address root cause

  • Demonstrated experience implementing and/or configuring encryption in-transit and at-rest to meet Sponsor's security requirements

  • Demonstrated experience with systems vulnerability remediation activities to include applying missing patches, disabling weak ciphers, installing sponsor-approved PKI certificates, disabling weak protocols, and providing evidence to close out vulnerability findings.

  • Bachelor's degree in a related field and at least 3+ years of experience.

  • Security Clearance TS/SCI with Polygraph


  • Demonstrated experience performing Oracle/Sun Solaris 10 or Solaris 11 systems administration

  • Demonstrated experience with performance tuning of infrastructure components such as operating systems, application servers, or databases

  • Demonstrated experience with building infrastructure using API, command line interfaces (CLI's) or silent installation files

  • Demonstrated familiarity, either through formal training or on-the-job experience, with automated provisioning technologies such as AWS Cloud Formation, Puppet, Foreman, Ansible, or AWS bootstrapping via clout-init scripts

Job Location


CACI employs a diverse range of talent to create an environment that fuels innovation and fosters continuous improvement and success. At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. CACI is proud to provide dynamic careers for employees worldwide. CACI is an Equal Opportunity Employer - Females/Minorities/Protected Veterans/Individuals with Disabilities.