Senior Linux Systems Administrator Jobs

Aquila Technology

Location:
United States, Lexington

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

Aquila Technology is seeking a Senior Linux Systems Administrator to join our team in supporting one of the country’s premier defense research organizations.

Job Responsibility:

Performing systems administration on Red Hat 8/9 servers, Red Hat Identity Management (IdM), and Red Hat Ansible Automation
Server performance optimization
Cyber security
OS and application patching
McAfee suite
Scripting
Storage
Disaster recovery

Requirements:

Must be a U.S Citizen
Must have an Active Secret Clearance (Green Cards / Visas do not qualify)
Willingness to undergo a comprehensive background investigation and maintain a personal security clearance
5 years – Networks
5 years – Networking Applications and Protocols: TCP/IP, DNS, NTP, DHCP, SSH, FTP and HTTP/S
5 years – SSH Server implementation, Linux Networking Configuration, Host Based Firewall, Web Server
5 years – Programming
5 years – Scripting Experience: Python, Ansible, TCL or Bash
5 years – Systems
5 years – Configuration of Distributed Environments, including NFS for Storage
5 years – Configure and Maintain a Number of Linux Systems Utilizing Scripting Languages and Automation Tools
5 years – Diagnose and Troubleshoot Issues
5 years – Enterprise Backup Solutions
3 years – Linux Patch Management
3 years – MS Active Directory, LDAP
5 years – Redhat Linux Systems Administration
Strong knowledge of Red Hat 8/9 Linux
Experience in setting up and deploying network services (e.g. GitLab/GitHub, Apache Web Server, NFS server)
Centralized account management (experience with Red Hat Identity Management or Free IPA server is a plus)
Possess or have the ability to obtain security relevant certifications (e.g. Security+ and Linux+ or equivalent)
Applied understanding of system hardening (experience with DoD system hardening guidelines is preferred, but not required)

Nice to have:

Linux+ Certification
Red Hat Linux Certification
Security+ Certification
Bachelor’s Degree
Centralized Account Management
Configure and Manage Centralized Logging and Audit Capabilities
Virtualization Technologies (VMware, including ESXi and VCenter configuration)
Knowledge of Virtualization Technologies such as VMware or RedHat Virtualization
Network support including SSH server implementation, Linux networking configuration, NFS, Host Based Firewall, Web Servers
PKI, Multi-Factor Authentication, and PIV Technologies
Linux kernel, system tuning and performance analysis
Remote KVM experience
BS in Computer Science or related field and 5 years experience or MS Computer Science or related field and 2 years experience

What we offer:

PTO – 15 days (vacation/sick)
10 paid holidays – 6 standard (New Year’s, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas) – 4 floating holidays prorated based on your day of hire
1.5 paid days, or 12 hours, for approved volunteer work
1 week of paid maternity/paternity LOA after 1 year of Full-time employment
Tuition & Training Reimbursement – 5K annually for pre-approved, job-related tuition, certification, or professional conferences
401K with Fidelity 100% immediate vesting
Aquila matches 100% the fist 3%, then 50% on the next 2%
Cell Phone & Internet Reimbursed up to $150 monthly to cover cell phone, data, and home internet expenses
By Your Own Device (BYOD) Allowance Reimbursed up to $1500 for the purchase of a qualified technology device

Additional Information:

Job Posted:
December 06, 2025

Employment Type:

Fulltime

Work Type:

On-site work

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Senior Linux Systems Administrator