Senior UNIX System Engineer

Senior UNIX System Engineer

(Active SECRET clearance required)

Ops Tech Alliance (OTA) is seeking a Senior UNIX System Engineer to support PL ALTESS at Radford Army Ammunition Plant, VA, under Task Area 1 – Operations. The engineer designs, installs, configures, and sustains UNIX/Linux servers hosting ALTESS production applications in a STIG-compliant environment.

This position is contingent upon contract award.

• Administer RHEL, OEL, and Solaris servers supporting production workloads.
• Perform patching via YUM/RPM and maintain DNS, SFTP, SMTP, and NTP services.
• Configure and harden firewalld/iptables; respond to incidents and outages.
• Support STIG compliance, ACAS scan remediation, and POA&M closure.

• Active IAT Level II certification (Security+ CE or equivalent).
• Computing Environment certification (e.g., RHCSA/RHCE) — waivable up to 30 days post-join.
• 5+ years UNIX/Linux administration (RHEL, OEL, Solaris).
• Hands‑on experience with YUM/RPM patching, firewalld/iptables, DNS, SFTP, SMTP, NTP.
• Active SECRET clearance.
• U.S. Citizenship.

• Ansible automation experience.
• Deep Solaris 11 experience.
• Scripting in Bash and/or Python.
• Prior experience in Army/DoD STIG-compliant environments.

Ops Tech Alliance (OTA) was founded by former National Security and Special Operations professionals with over 100 years of combined experience and was formed with a singular focus: to bridge the gap between operations and technology to enable mission success. We are a certified Service‑Disabled Veteran‑Owned Small Business (SDVOSB).

• Competitive Pay
• Paid Time Off
• Tuition Assistance
• Medical, Prescription, Dental & Vision Coverage
• Life Insurance
• Work‑life Balance

This is a full‑time position.

OTA is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.