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
