Unix Systems Administrator

Job Description

UNIX SYSTEMS ADMINISTRATOR

260001BT

NEXCOMHQ

$80,893 to $102,677 based upon experience

Responsible for installation, configuration, and support of Unix servers and operating systems within a large retail enterprise environment spanning multiple geographical locations and requiring 24 × 7 uptime. Responsibilities include building logical and virtual partitions, VIO servers, deploying and testing OS, LVM, HACMP, security patching, virus updates, and performance tuning.

Incumbents of this position must be U.S. Citizens.

• Installs and configures Unix server hardware and software, including logical and virtual servers, IBM/HP Virtualization, Virtual I/O servers, Shared Ethernet Adapters, Virtual SCSI Adapters, AIX, HP-UX, Linux, and HBSS.
• Assumes a primary role in the testing of new equipment. Has knowledge of AIX pSeries hardware as well as hardware capable of hosting Linux.
• Troubleshoots Unix server and OS issues. Independently utilizes all available resources (knowledge bases, online resources, etc.) to ensure timely resolution of server issues.
• Develops operating procedures for system administration activities including system monitoring, performance tuning, backup/recovery, server architecture design and system maintenance.
• Follows operating procedures and utilizes established support tools for analysis and reporting requirements.
• Executes a planned program of patch and virus update management, including testing, deployment staging, and documentation. Installs, maintains and manages AIX NIM, HP Ignite and HBSS for automated updates. On Linux servers, packages updates as necessary, creates RPMs, and utilizes YUM to install and update packages.
• Performs regular system maintenance, hardware and software upgrades, server migrations and performance tuning.
• On Linux servers uses security tools such as SELinux and FAPolicyd to monitor and apply security settings in accordance with DoD, NEXCOM, and industry best practices.
• Uses system tools and utilities including HMC, DLPAR, LVM, NIM, etc. in performing duties and responsibilities.
• Writes and modifies shell scripts to monitor and automate system administration tasks.
• Actively participates in project planning and assumes a leadership role as needed to ensure timely and successful completion of projects assigned to Unix server team.
• Provides technical knowledge and makes recommendations to staff members as required.
• Provides server hardware capacity recommendations.
• Interfaces with Network Engineers, Storage Engineers, Database Administrators and Application Teams to optimize systems use and configuration.
• Provides installation support for new applications and software releases.
• Interfaces with hardware vendors to maintain and schedule repair of equipment in a timely manner.
• Implements installation, configuration, testing and support of HACMP and other High Availability technologies as required.
• Provides on‑call 24 × 7 support on a rotating basis.
• Ensures/implements the rigorous application of Information Security/Information Assurance policies, principles, and practices in the delivery of Systems, Applications and/or Services (Hardware & Software).
• Installs and executes the Secure Readiness Review program and implements system security controls as required. Reviews DISA's Unix Security Technical Implementation Guide (STIG) and Checklists for guidance. Implements Payment Card Industry standards and requirements as mandated on Unix Systems.
• Performs other related duties as assigned.

IAT2 jobs: SECNAV M‑5239.2 DoN, Information Assurance (IA) Workforce Manual requires that all incumbents of this position possess and maintain current, two types of certifications as follows:

• IA Certification:
  Security+, GIAC Security Essentials Certification (GSEC), Security Certified Network Professional (SCNP), Systems Security Certified Practitioner (SSCP), or any one of the following higher level certifications:
  Certified Information Systems Auditor (CISA), Certified Information Systems Security Professional (CISSP), GIAC Security Expert (GSE), Security Certified Network Architect…