Linux Administrator

Company: Gilder Search Group
Location: San Diego
Posted on: April 3, 2025

Job Description:

Information Systems Solutions (ISS) is looking for a candidate to provide Red Hat Linux system support for classified and unclassified Research, Development, Test, and Evaluation (RDT&E) networks supporting NIWC PAC. The selected candidate will be responsible for the maintenance of the Linux core infrastructure.Specific job duties include:

• RedHat Linux 6, 7 and Solaris 10, 11 system administration.
• Administration of virtualized server environments including Kernel-based Virtual Machine (KVM) and VMware vSphere/ESXi.
• Hardening servers and applications to DISA standards and ACAS scans and documenting variances from the guidelines when needed.
• Hardening infrastructure resources in compliance with DISA STIGs. Server hardening techniques include IPtables, Firewalld, SELinux, and SSH.
• Monitoring infrastructure availability and performance by developing dashboards and automated alerts that reduce system downtime.
• Automation of system patch availability, configuration management, and compliance auditing using Red Hat Satellite server, Ansible, Puppet, and/or other automated CM products.
• Create documentation on current processes and newly engineered solutions.Why Work For ISS?At ISS, we pride ourselves on providing an employee-focused and family-first environment. Being a small business, we take the time to get to know our employees and have a vested interest in helping them achieve their career goals. We work to schedule regular social gatherings within the company to foster camaraderie. ISS values their employees by providing a comprehensive benefits package that includes a fully vested 401(k) matching program, coverage of family medical deductibles, spot bonuses, and educational assistance to further your career.Clearance Level:
  • SecretCertifications (IAT Level II):One of the following:
    • Security+ CE
    • GIAC Security Essentials Certification (GSEC)
    • Security Certified Network Professional (SCNP)
    • System Security Certified Practitioner (SSCP)Required Skills:
      • 5+ years of experience.
      • Experience with Red Hat Enterprise Linux (RHEL) administration.Desired Skills:
        • Strong knowledge with software and hardware RAID, Logical Volume Manager, Solaris LDOMs, and Solaris Zones. Experience provisioning and configuring Solaris virtual servers using logical domains and zones.
        • Strong analytical and troubleshooting skills and experience performing root cause analysis. This includes troubleshooting any and all issues with system configurations, backups, file systems, and user access.
        • Experience writing and managing scripts and utilities to automate day-to-day systems administration and configuration management tasks.
        • Functional working knowledge in these areas: DNS (bind), Kerberos, LDAP, OpenSSL, Apache, email services (IMAP, SMTP).
        • Strong programming skills in scripting languages (C, Bash, Ksh, Expect, Perl).
        • Knowledge of ITIL processes and ITIL Certification.
          #J-18808-Ljbffr

Keywords: Gilder Search Group, San Diego , Linux Administrator, IT / Software / Systems , San Diego, California