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Professional-Systems Administrator *

Job SummaryThis position is to provide operational support for backbone email messaging transport within AT&T and legacy internet email platforms such as & The suitable candidate will monitor, manage, and maintain email traffic for corporate and internet mail relay servers. Responsibilities also include managing a system for email filtering, mass mail control, dynamic distribution list creation, enforcing infrastructure policy and addressing violations.Roles and Responsibilities:
  • Corporate & Internet Mail Relay system management and support
  • Dedicated application Mail Relay system management and support
  • Critical Path Messaging Services (CPMS) infrastructure management and support
  • DLIST – Customized distribution lists accessible for internal and external customers.
    • orgMail – Emailing tool allowing executives the ability to construct dynamic distribution lists for critical communications.
    • Mass Mail Tool – Mass Emailing tool incorporating moderation
  • DLP – digital leakage prevention program support with CSO
  • Anti-spam, Anti-virus, Content Control support with CSO for Corporate Edge Services
  • Scripting, troubleshooting, and log analysis
Responsible for installing, configuring, and maintaining sendmail relay servers in support of our supported services.  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. Ensures server data integrity by evaluating, implementing, and managing appropriate software and hardware solutions. Develops and promotes standard operating procedures. Conducts routine hardware and software audits of servers to ensure compliance with established standards, policies, and configuration guidelines. Develops and maintains a comprehensive operating system hardware and software configuration database/library of all supporting documentation.Nature of Contribution- Fully functioning technical professional.  Develops new concepts, methods and techniques. Knowledge - Subject matter expert within own discipline/ specialty area.  Applies specialized knowledge of discipline/specialty area standards and processes to work.  Integrates company experience and deep technical knowledge and has advanced understanding of select AT&T technologies, systems and/or procedures.Analysis and Problem Solving - Solves non-routine problems based on analysis of multiple factors.  Independently identifies key issues, patterns or deviations from norm.  Works on problems requiring judgment and in-depth evaluation of multiple factors.  Analyzes and interprets research to evaluate and recommend solutions.Independence - Guided by team goals and operational objectives.  Applies judgment to determine appropriate processes and technical area standards to use and provides technical direction to others in own work area.Contribution to AT&T Technology - Key contributor on diverse projects of moderate scope.   Recommends new procedures and processes to drive desired results.Communication- Explains advanced technical information to less experienced team members.  Provides specialized technical guidance to others in work area.  Builds productive internal/external relationships and collaborates with others in own team or across teams.

Required Competencies and Skills -

  • 5+ Years Linux system administration experience.
  • 5+ Years SendMail administration and configuration experience
  • In depth skills in Perl and Bash scripting
  • In depth understanding of SMTP, TLS, and other email transport protocols
  • Solid background in networking and DNS.
Additional Skills/Background desired -
  • Experience with Postfix or other email relay platforms.
  • Experience with Microsoft Exchange
  • Experience with email edge providers such as ProofPoint, Message Labs, or Secure Email Gateway
Note: Additional skills / competencies may be added to this specific requisition. During the application process, you will be asked to provide your proficiency and experience with all the skills / competencies associated with the requisition.