System Admin Sr.
Job Opportunity at Cross Resource Group

Posted on Sep 29

http://www.crossresourcegroup.com    972-489-1236

Location: Dallas, TX
Job Type: Full Time
Job ID: W4143398

Administrator Systems Sr
(Senior Linux/Windows Administrator)

 
Job Purpose:       
The Senior Systems Administrator (Senior Linux/Windows Administrator) will be responsible for designing, implementing, and monitoring the infrastructure; also, to collaborate with other team members to develop automation strategies and deployment processes. You will become an integral part of the team, making every problem of the platform a problem of your own, and solving them accordingly.
 
Major Responsibilities:
List in order of importance   
  1. Install and maintain security patches on the operational and development system, which includes but is not limited to, Red Hat Linux, Windows Operating Systems, Tomcat, JBoss, VMWare, PostGreSQL, Mysql, MongoDB and Apache web services.
  2. Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
  3. Perform regular security monitoring to identify any possible intrusions.
  4. Ensure daily backup operations are performed, ensuring all required file systems and system data are successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary.
  5. Perform regular file archival and purge as necessary.
  6. Create, change, and delete user accounts per request as necessary.
  7. Provide Tier III/other support per request from various constituencies.  Investigate and troubleshoot issues. This can occur after hours or on weekends.
  8. Repair and recover from hardware or software failures.  Coordinate and communicate with impacted constituencies.
  9. Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities. Configure/add new services as necessary.
  10. Upgrade and configure system software that supports infrastructure applications or Asset Management applications per project or operational needs.
  11. Perform ongoing performance tuning, hardware upgrades, and resource optimization as required.  Configure CPU, memory, and disk partitions as required.
 
Minimum Education & Certifications Required:   
  
  • High School diploma or equivalent 
  • Bachelor’s degree, with a technical major, such as engineering or computer science, preferred
  • ITIL v3 Foundation Certification, preferred
 
Experience & Skills Required:
  • Strong technical background with a minimum of 7 years professional experience managing 50+ Linux & Windows Servers
  • F5 Load Balancer Administration
  • Strong scripting experience.  Bash, Korn, csh or sh preferred.
 
General Skills:
  • Experience with the use of content delivery networks (CDN)
  • Experience with web servers, IIS, Tomcat, Apache, et al.
  • Experience with various database servers, SQL, MySQL, MongoDB, Oracle, Sybase
  • Familiarity with web-based technologies, including but not limited to, reverse proxy servers, SSL certificate configuration, three-tier architecture, service oriented architecture, enterprise service bus, http, and differences between browsers.
  • Ability to be a leader amongst the team and be a champion of organizational documentation and procedures
  • Demonstrated knowledge and working experience in both Linux (RHEL 6.x) and Windows OS environment
  • A team player with a track record for meeting deadlines
  • Takes ownership of assignments, working with minimal direct supervision
  • Ability to effectively communicate (verbal and written correspondence) in a professional and courteous manner with technical and non-technical personnel.
  • Excellent interpersonal, organizational and facilitation skills
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