Linux Systems Administrator
Praxis Engineering - College Park, MD

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Praxis Engineering is a consulting, products, and solutions firm dedicated to the practical application of software and system engineering technologies to solve complex problems. Praxis brings together world class engineers with proven engineering best practices, domain expertise, commercial technologies and proven agile management approaches to create high value solutions aimed at helping our customers meet their most critical business and mission objectives.

Praxis’ core competencies include:
SOA/Enterprise Application Development

Configuration Management

Embedded Real-Time Technologies

Automated Testing of complex systems

Database Architecture, Development and Administration

Program Management

IT Infrastructure and Network Support

Job Description : Praxis Engineering is seeking a Linux Systems Administrator.

Required Skills:
A minimum of five (5) years experience administering Linux systems. Experience listed for sub-criteria below may be concurrently or consecutively gained

A minimum of two years experience installing Linux servers using PXE (pre-boot execution environment) (e.g. Cobbler/Kickstart)

A minimum of two years experience creating spec files to producing RPMs (i.e. RedHat Package Manager) for installation custom software

A minimum of 2 years experience establishing Local Area Networks (LAN), to include creation and configuration of common services (e.g. DNS (Domain Name System), NTP (network time protocol), NFS (network files system), NAT (network address translation), Squid (caching proxy), yum (software package manager), and LDAP (lightweight directory access protocol))

A minimum of 2 years experience assembling and configuring equipment racks comprised and RAIDs (Redundant Array of Independent Disks), switches (to include KVMs), and Linux hosts. Experience listed for sub-criteria below may be concurrently or consecutively gained

A minimum of one year experience configuring network switches and switch operating systems (to include Cisco IOS (internetwork operating system) and/or IOS-like systems) to include experience designing and implementing VLANs (virtual local area networks) on various switches for virtual network topologies

A minimum of one year experience optimizing scalability and performance of various modern file systems as applied to RAID systems and reliability performance tradeoffs

A minimum of one year experience performing the physical layer of system integration (to include installation of fiber optic and copper cabling).

Ability to lift 45 (forty-five) pounds

A minimum of two years experience in technologies for Large System

Administration (to include knowledge of network management systems for managing very large, geographically distributed systems of systems from a central location)

A minimum of two years experience deploying FOSS (free open source software) (e.g. source tarballs, RPMs, JAR (java archive) files, and Perl (practical extraction and report language) libraries)

Certification as RedHat Technician (RHCT) and a minimum of two years experience with RHEL 5 & 6

Desired Skills:
Demonstrated experience configuring and deploying Xymon and/or Nagios monitoring tools

Demonstrated experience hardening and securing Linux hosts and services

Demonstrated familiarity with Unix and/or Linux shell scripting languages (e.g. Bash, .sh, C-shell)

Demonstrated familiarity with reconfiguring and recompiling a Linux kernel

Demonstrated familiarity with developing test and diagnostic software to instantiate systems that autonomously collect and report status

Demonstrated familiarity with remote diagnosis and remediation of failed computer and network components

Demonstrated familiarity with installation and use of optical fiber for communications

Education: A Bachelor’s degree is desirable.

Location: This full-time position is located in College Park, Maryland.

Clearance: Positions require a TOP SECRET security clearance, based on current background investigation (SBI), as well as the favorable completion of a polygraph. Clearance and polygraph processing will be completed by the U.S. Government.

Praxis Engineering is an Equal Opportunity Employer EOE, M/F/D/V.

Praxis Engineering - 22 months ago - save job - block
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Praxis Engineering is a consulting, products, and solutions firm dedicated to the practical application of software and system engineering...