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Job Title : Linux System Administrator
Work Location : Irving,TX
Duration : Full-time
Relevant Experience (Yrs) : 10 + years of experience in Linux Administration , Red Hat and VERITAS Cluster experience
Experience Required:
Must have:
· Should have experience in performing L3 (level 3) – Subject Matter Expertise in UNIX – Primary Linux, Secondary AIX
· Must have current strong experience with Red Hat and VERITAS Cluster Suite and system Automation
· Strong scripting knowledge: Perl scripting, shell scripting and command line utilities
· Must attain and keep current appropriate industry certifications (Red hat Certified Engineer or Red hat Certified Systems
Administrator).
· Redhat – 5.x, 6.x (5-7 years)
· Builds, package installs, performance tuning, root cause analysis, ldap/kdc config
· Native LVM for RHEL and AIX (5-7 years)
· Clustering solutions
· Veritas Cluster VCS(3-5 years)
· Oracle Rac Builds (1-2 years)
· Unix Security Framework knowledge (PAM, KDC/LDAP, SSH key management, etc)
· Networking protocols (NFS, SSH, SFTP, HTTP)
· Performance tuning (kernel parameters, network parameters)
· HP Blade Chassis, ILO (2-5 years)
· VMware containers (2-5 years)
· SAN and NAS client (5-7 years)
· Formal training in programming (4 years)
· Shell programming(ksh,perl) (2-5 years)
· CFengine,Chef,Puppet(1-3 years)
· Experience as an IT Linux server administrator and hands on support of Postfix
· Strong working knowledge of MySQL
· Strong working knowledge/support of Unix based system
· Strong working knowledge of virtualization technologies and VMware products
· Strong knowledge of DNS and network tools (ping, traceroute, etc.)
· Experience with supporting enterprise applications such as Oracle Financials and Oracle databases running onLinux
· Must be able to troubleshoot complex issues quickly and effectively
· Deep understanding of basic TCP/IP and internet protocols required
· Knowledge of NIS, LDAP, NFS, SMTP, IMAP, and X11R7 is required
· Knowledge of SAN/NAS management is a plus
· Ability to clearly communicate business and technical concepts in writing or orally
Roles & Responsibilities:
· Server Administration – Hardware, OS, SAN allocations, Network, and Scripting
· Software Installations – OS Package/patch installations, client software installation
· Monitoring – Tivoli alerts, system and network-level performance monitoring, performance tuning, backups, and capacity planning
· Project representation – Represent the team on assigned projects, planning and implementation
· Processes – Global standards, compliance, security, change management, asset management
· Server Migrations - Database, Application, Web server migrations between Datacenters
· Server and Process Automation
· Schedules installations and upgrades and maintains them in accordance with established IT policies and procedures.
· Monitors and tunes the system to achieve optimum performance levels.
· Performs software installations and upgrades to operating systems and layered software packages
· Schedules installations and upgrades and maintains them in accordance with established IT policies and procedures
· Monitors and tunes the system to achieve optimum performance levels
· Maintains data files and control procedures for complex systems of networked computers or a single group of microcomputers linked to
a host workstation
· Ensures long-term requirements of systems operations and administration are included in the overall information systems planning of
the organization
· Responsible for the installation, maintenance, configuration, and integrity of computer software
· Implements operating system enhancements that will improve the reliability and performance of the system
· Responsible for system security and data integrity that involves general troubleshooting and communication with end users
· Monitors network traffic and makes necessary recommendations for additional resources or hardware
· May maintain project schedules
Generic Managerial Skills:
· Self-starter required.
· Strong customer and quality-focus is a must.
· Sound problem resolution, judgment, and decision-making skills required.
· Excellent organizational, interpersonal, and project management skills.
· Excellent communication skills both written and oral.
· Ability to focus on multiple simultaneous problems under tight deadlines.
· Candidate with Spanish knowledge is advantage.
Education : Bachelors degree
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