Senior UNIX System Engineer w/Secret Clearance

Senior Unix System EngineerWe are seeking a Senior Unix System Engineer to join our team supporting an ITES task order.Required QualificationsExperienceFive (5) years as a Unix Systems Administrator or IT Engineer, including task automation.Three (3) years of experience in patch management (YUM, RPM) and applying security updates.Three (3) years working in complex networking environments, using VLANs and tools like ifconfig, netstat, ssh, and telnet.Three (3) years of system hardening using firewalld/iptables and host configurations.Three (3) years managing local user accounts via CLI.Three (3) years creating, maintaining, and executing SOPs for repeatable processes and recovery operations.Three (3) years configuring and maintaining services: DNS, SFTP, SMTP, and NTP.Strong team collaboration and communication skills.Three (3) years working with SELinux (basic and advanced configuration).Experience with Cybersecurity patching, STIGs/SRGs, RMF, SCA-V, and CORA.Experience with large-scale hardware/software deployments across geographically dispersed sites.Familiarity with emerging network and infrastructure management tools and best practicesDemonstrated experience supporting government agencies, customers, or contracts within federal environments. This includes the Intelligence Community (IC), Department of Defense (DoD), Federal Civil agencies, and military organizations. Prior experience supporting the same or similar contract, with an in-depth understanding of the customer environment, requirements, and operational landscape, is highly desirable.CertificationsCompTIA Security+Computing Environment (CE) Certification (e.g., RedHat) can be waived for 30 days post-start.ClearanceSecret - IT-II Non-Critical Sensitive clearance or Tier 3 (T3) investigationDesired QualificationsEducationBachelor's degree in computer science or equivalent experience.ResponsibilitiesManage, maintain, deploy, troubleshoot, and support Red Hat Enterprise Linux, Oracle Enterprise Linux, and Solaris Unix servers.Monitor and tune system performance to ensure optimal operations across a mixed customer environment.Plan and implement new system hardware and software, including lifecycle management and firmware version control.Create, maintain, and improve technical instructions, operating procedures, and policies.Perform system hardening and report on security and operational status.Identify system improvements and lead new software/hardware integrations.Generate and analyze utilization reports using existing tools to guide problem identification and resolution.Provide support and periodic preventive maintenance in a data center environment.Demonstrate and implement technologies to enhance efficiency, scalability, and performance of the current environment.Configure and maintain key services such as DNS, SFTP, SMTP, and NTP.Manage a large pool of local users via command line and enforce access control policies.Document and execute repeatable processes and disaster recovery protocols via SOPs.