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Linux System Administrator

Job Category:
Computer and Information Technology
Career Level:
Mid Career (2+ years of experience)
Job Type:
Full Time/Permanent
Company Name:
Description: Aol Networks is the global partner of choice for leading publishers, advertisers and agencies seeking to maximize the value of their online brands. We have strategically combined the strengths of our premium brands including, Sponsored Listings (ASL), ADTECH, The AOL ON Network, Buysight, and Pictela. Simply put, we offer publishers a one-stop shop for global advertising solutions to help increase yield through a rich and broad set of platforms, formats, and technologies. As a member of Technology Operations, the Systems Administrator’s (SA) responsibilities extend across two major functional areas - the operational health of infrastructure systems in a 24x7x365 Internet production, QA, and development environments and the creation and maintenance of operations policies and procedures. The incumbents must be comfortable with their ability to rapidly assess, analyze and resolve complicated issues with little initial information or direction and with varying degrees of ambiguity.

We are searching for a Linux System Administrator for our Baltimore, office.  This is a full-time position that is responsible for learning, installing, maintaining, monitoring and scaling linux systems that produce billions of transactions a day.  

Duties and Responsibilities:
  • Design, install, and manage large scale, high-performance linux systems (Red Hat and CentOS) that support diverse online advertising platforms.
  • Contributor to the automation, management, and optimization of our overall infrastructure. Develop scripts and procedures to automate routine processes.
  • Work with Technology Operations in setting operations policy and procedure, such as related to patch management, monitoring, security, shared tools, shared infrastructure, etc.
  • Research, design, develop and implement solutions for fault tolerance, performance, capacity, and configuration management for applications.
  • Identifies production stability concerns via break point and impact analysis.
  • Designs, develops and implements remediation plans to address.Designs, develops, and implements documentation and/or tools to facilitate Technical Support team responsibilities and application maintenance.
  • Provide Tier 2 support to issues escalated from Technical Support team. Interface with development teams, software vendors, or other Tier 2 teams to resolve issues.
  • Serve in a 24/7 on-call rotation as an escalation contact for service trouble incidents.
Required Skills and Education:
  • Bachelor’s degree in Information Systems, Computer Science, or related field
  • 3-5 years in a linux 24/7/365 support position including High Availability configurations, security and patch management.
    • Experience installing and administering software packages.
    • Functional scripting experience to produce solutions and perform troubleshooting. (perl, vb script, shell scripting)
    • Grasp of Internet network concepts, protocols and associated services (TCP/IP, HTTP, HTTPS, FTP, SCP, DNS, SNMP, SMTP).
    • Functional experience in monitoring technology (such as Zenoss), clustering technology (such as VERITAS Cluster Server), and VMware/virtualization administration.
    • Familiarity with mass storage systems and SAN/NAS environments and their capacity to meet application needs.
  • Experience managing large server fleets is highly desired.