Linux Senior Systems Administrator

Peraton is seeking a Linux Senior Systems Administrator ("Linux Sys Admin") to join our team of qualified and diverse individuals on our Department of State (DOS) Bureau of Diplomatic Technology (DT) Consular Affairs Enterprise Infrastructure Operations (CAEIO) Program. CAEIO provides IT Operations and Maintenance to modernize the legacy networks, applications, and databases supporting consular applications services globally. 

The Linux Sys Admin will be a member of the Infrastructure Support team, supporting CA servers, storage platforms, systems, networking equipment, and hosted systems in use at DOS domestic and overseas facilities. The team works closely with other program team members, contractors, DOS leadership and business stakeholders to monitor performance, address faults, ensure secure service delivery, and craft and implement solutions for operational issues and new requirements.

Responsibilities

• Leverage Red Hat and Oracle Linux experience to deliver measurable results in a fast-paced, professionally challenging environment.
• Assist in troubleshooting complex issues that cross many functional areas.
• Perform Linux Administration using AAP, Satellite, and Puppet to automate system builds, upgrades, patching, and hardening.
• Provide T3 level support for the Red Hat Enterprise and Oracle Linux environments.
• Deliver technical and user documentation as required.
• Provide off-hours support.
• Train junior team members on patching and other O&M related tasks.
• Comply with certification and accreditation requirements.
• Create and maintain SOPs.

Location: This position is hybrid with remote work and one day per week in the office in Sterling, VA, or Washington, DC. The number of days in office is subject to change based on program or government requirements.

Core Work Hours: Monday - Friday 7:00 AM ET - 4:00 PM ET (Flexible with manager approval. The Linux Sys Admin can expect to work off-hours, including weekends, to support period surge requirements.)

Required Qualifications

• U.S. citizenship and an active SECRET Government Security Clearance.
• Five years of experience in a similar role within a large, multi-site production environment.
• Strong knowledge of RHEL and/or Oracle Linux.
• In-depth knowledge of and real-world experience in automation.
• Ability to quickly troubleshoot and mitigate issues.
• Proficiency with Ansible.
• Experience working with Security teams to translate Common Vulnerabilities and Exposures (CVE) into actionable mitigation and remediation steps.

Desired Qualifications

• Experience running databases on Linux (Oracle, MySQL, or PostgreSQL).
• Experience with any of the following: vCenter, VMWare vSphere, Apache HTTP Server.
• Hands-on experience working with Openshift 4.x – RBAC, AD/LDAP Integration, CI/CD, Certificates, SSL/TLS.
• Red Hat Certified Engineer; Red Hat Certified System Administrator
• Proficiency in Satellite.
• Proficiency with Red Hat IDM.

Education: Minimum 12 years with High School Diploma; Minimum 10 years with AS; Minimum of 8 years with BS/BA; Minimum of 6 years with MS/MA.