Senior UNIX System Engineer
Peraton · Radford, VA, US
About this role
## Senior UNIX System Engineer ### About Peraton Peraton is a next-generation national security company delivering trusted, differentiated solutions and enterprise IT services for missions of consequence worldwide. ### The Opportunity Join a seasoned UNIX team supporting a mixed, growing environment of **Red Hat Enterprise Linux (RHEL)**, **Oracle Linux**, and **Solaris**. You’ll harden, tune, automate, and modernize servers that hundreds of programs depend on—at mission scale. ### What You’ll Do - Manage, maintain, deploy, troubleshoot, and support **RHEL/Oracle Linux and Solaris** servers across a mixed customer environment - Plan and implement new **system hardware/software** and lead **HW/SW integrations** - Monitor and tune system performance to keep day-to-day operations running smoothly - Harden servers using **STIG, SELinux, firewalld** and report security/operational status - Produce utilization reports to identify issues and drive corrective actions - Manage lifecycle of multi-vendor data center equipment (e.g., **firmware version control**, preventive maintenance) - Create and maintain technical instructions, operating procedures, and policies - Recommend and implement technologies to expand, upgrade, and improve efficiency ### What You Bring (Required) - Minimum experience based on education: - **12+ years** w/o a degree; **10+ years** with AS/AA; **8+ years** with BS/BA; **6+ years** with MS/MA; **3+ years** with PhD - **DoD 8140** qualified for **DCWF 451 – System Administrator (Intermediate)** - Computing environment/platform certification for supported technologies (e.g., **RHCSA/RHCE, Oracle Linux OCP, Oracle Solaris 11 OCP**); may be waived for 30 days after project start (per PWS) - Background in **Computer Science or IT** - **Active DoW Secret security clearance** and **U.S. Citizenship** - 3+ years as a **UNIX/Linux Systems Administrator or IT Engineer**, including automation - 3+ years **patch management** (security updates with **DNF/YUM** and **RPM**) - 3+ years in complex network environments (e.g., **VLANs**), troubleshooting tools (**ip/ifconfig, ss/netstat, ssh**), and hardening (**firewalld/iptables**, hosts files) - 3+ years managing a large pool of local users via command line - 3+ years creating/maintaining SOPs for repeatable processes, disaster recovery, and common problem resolution - 3+ years configuring/maintaining key services: **DNS, SFTP, SMTP, NTP** - Strong interpersonal skills and team-player mindset ### What Sets You Apart (Desired) - 3+ years of basic/advanced **SELinux** management and configuration - Experience with cybersecurity patch management, **STIGs, SRGs, RMF, SCA-V**, and **CORA** - Automation experience with **Ansible, Bash, or Python** - Experience deploying large-scale hardware/software upgrades across distributed sites ### Location **Radford, VA or Remote** ### Salary Range **$112,000 – $179,000** (typical range; final offer depends on factors including experience, education, skills, and location). Overtime/shift differential/bonus may apply depending on the position. ### Benefits Eligible employees may receive medical, dental, vision, life, HSA, disability, EAP, parental leave, **401(k)**, **PTO**, and company-paid holidays. ### Notes for Applicants - Application period estimated at **30 days** from posting date (may vary) - On-camera interview and identity verification may be required - **AI tools are strictly prohibited** during Peraton interviews unless prior writ
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