Linux Administrator

Avis Technologies; Des Moines (IA); On-site; USD 80,000 - 100,000; Full time

Job summary

A technology firm in Des Moines, Iowa, seeks a Senior Linux System Administrator for a 3-month contract with potential for extension. The role includes RedHat and Ubuntu administration, scripting in bash and Python, Ansible automation, and managing system upgrades and security. Ideal candidates should have clear communication skills and possess US citizenship or a green card. This position offers an opportunity to work on critical infrastructure updates and system maintenance.

Qualifications

• Must be a US citizen or have a green card.
• Proficient written and verbal communication skills.

Responsibilities

• Support Senior Linux System Administration tasks.
• Manage OS upgrades and security updates.
• Automate processes using Ansible.
• Migrate and upgrade systems and servers.
• Implement system security best practices.

Skills

RedHat/CentOS & Ubuntu system administration

Scripting languages (bash, Python)

Ansible automation

Git repository management

VMware/deployment methods

System security best practices

Authentication protocols (KRB, SSSD, A/D, LDAP)

Job description

Overview

VISA STATUS: US CITIZEN AND GREEN CARD. This is a 3 month contract with the possibility of extension. Must have clear and proficient written and verbal communication skills.

Responsibilities

Senior Linux System Administration support with skills in:

• 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

Contractor Tasks

1. Individual Systems Update (100+ Systems)
   1. Security
      1. Uninstall FireEye HX agent
      2. Install/configure M.S. Defender
      3. Review/implement 3rd party recommendationsli>
   2. Scheduled jobs analysis
   3. Validate/analyze boot files (inittab, systemd, rc.x)
   4. Compare /home to passwd file
   5. Review/convert chronyd configurations
2. Migrate Ubuntu Desktops to current version (10 Systems)
3. Upgrade/migrate Linux servers to latest OS (10 Systems)
4. Ansible bash-to-yaml conversion
5. Review/Improve logging (syslog-ng)
6. Review A/D integration (Kerberos with SSSD; LDAPS; OUs)
7. Replace SSL Certificates (20 Systems)