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Systems Administrator


Naucalpan de Juarez, Mexico

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AT&T's Computer Operations & Security Compliance Organization is currently seeking a dynamic and talented individual to join our world-class support team as a Systems Administrator located in our Naucalpan de Juarez office. This is an opportunity for you to work for the world’s leading network provider! The future is now, are you ready for the challenge?

Roles and Responsibilities:

• Install, upgrade, and perform disaster recovery activities on operating systems
• Monitoring and tuning systems to achieve optimum performance
• Perform server-side SAN maintenance and troubleshooting
• Setup and maintain file systems under the control of volume managers
• Manage system clusters using VERITAS Cluster Server
• Perform in-depth system analysis, configuration management, and develop improvements for system availability and reliability
• Determine system issues, resolve outages, and perform root cause analysis with minimal assistance
• Implement new or revised system software, configuration utilities, and automated processes, as necessary.
• Ability to troubleshoot network issues from server side and determine potential network break point
• Provide technical expertise for system transitions, migrations, and consolidations.
• Work closely with internal customers, such as application and database administrators, to understand their processes and requirements and how it impacts your team
• Collaborate with peers from around the world to ensure customers are provided world-class support

Key Competencies and Skills:

• Advanced knowledge in one or more of the following operating systems:
o Linux (CentOS, RedHat, or Ubuntu)
o Solaris
o VMware ESXi
o Windows Server 2008/2012/2016
• Experience with one or more of the following OS installation tools
o NIM for AIX
o HP-UX Ignite-UX
o Linux Kickstart
o Solaris Wanboot
o Windows AIK
• Experience with one or more of the following volume management tools
o AIX – LVM, VERITAS Volume Manager
o HP-UX – LVM, VERITAS Volume Manager
o Linux – LVM, VERITAS Volume Manager
o Solaris – Solaris Volume Manager, VERITAS Volume Manager, ZFS
o Windows – VERITAS Volume Manager
• Intermediate knowledge of NAS and SAN storage; ability to explain SAN architecture and multipathing, how to optimize NAS traffic
• Intermediate knowledge of IP addressing and routing; Ability to demonstrate understanding of routes, subnets, packet ingress/egress, IP filtering, and more
• Intermediate PERL and shell scripting (sh/ksh/bash) knowledge, ability to demonstrate understanding of process forking, regular expressions, arrays/hashs, and more
• Ability to multitask while working in a high pressure environment
• Ability to understand the technical design/architecture of computer systems, networks, and applications
• Ability to learn new technologies quickly and without supervision
• Fluent use of English written and spoken
• Clear and concise communication
• Flexibility to work nights/weekends as required

Education and Qualifications:

• Bachelor’s or Master’s degree in Computer Science or a related field
• 3 – 5 years experience in Systems Administration supporting one or more of the following operating systems
o Linux (CentOS, RedHat, or Ubuntu)
o Solaris
o VMware ESXi
o Windows Server 2008/2012/2016
• Upper Intermediate English skills (written and verbal) – B2 Level
• Good organization and attention to detail
• A logical mind-set and a passion for problem solving and teamwork
• Experience within the IT, telecommunications, and/or networking industry is desirable
• Experience in a multi-national, multi-cultural, and global environment is preferred