Linux Administrator - Onsite

Job Description: • RedHat/CentOS & Ubuntu system administration • Major and minor OS upgrade • Scripting languages, including bash and Python • Ansible automation • Git repository management • VMware/deployment methods • Physical server maintenance, include iDRAC • Implementing system security best practices • Authentication protocols/methods including KRB, SSSD, A/D, LDAP • Proficient written and verbal communication On specified RedHat/CentOS and Ubuntu servers and desktops: plan, execute document and share methods Contractor Tasks i. Individual Systems Update (100+ Systems) 1. Security a. Uninstall FireEye HX agent b. Install/configure M.S. Defender c. Review/implement 3rd party recommendations 2. Scheduled jobs analysis 3. Validate/analyze boot files (inittab, systemd, rc.x) 4. Compare /home to passwd file 5. Review/convert chronyd configurations ii. Migrate Ubuntu Desktops to current version (10 Systems) iii. Upgrade/migrate Linux servers to latest OS (10 Systems) iv. Ansible bash-to-yaml conversion v. Review/Improve logging (syslog-ng) vi. Review A/D integration (Kerberos with SSSD; LDAPS; OUs) vii. Replace SSL Certificates (20 Systems) RedHat/CentOS & Ubuntu system administration Required 5 Years Major and minor OS upgrade Required 5 Years Scripting languages, including bash and Python Required 5 Years Ansible automation Required 5 Years Git repository management Required 5 Years VMware/deployment methods Required 5 Years Physical server maintenance, include iDRAC Required 5 Years Implementing system security best practices Required 5 Years Authentication protocols/methods including KRB, SSSD, A/D, LDAP Required 5 Years Proficient written and verbal communication

Created: 2026-03-04