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Quanta Services Sr. Systems Administrator (Office 365 Messaging Engineer) in Houston, Texas


The Senior Systems Administrator will provide technical guidance and consulting across the organization and be a contributor in strategic decision on the platforms.



  • Manage a unified communications platform which includes Exchange, Office 365, Teams, E-discovery, EMC SourceOne and MobileIron.

  • Use PowerShell to automate reports, tasks, and troubleshooting.

  • Perform installations, patches, upgrades, capacity planning and performance tuning, through approved change management

  • Enter, track, and update incident and changes in ticket management system.

  • Provide tier-3 support for team members and other support teams.

  • After-hours support rotation and implementation, as needed.

  • Document and develop in-depth knowledge of company’s existing messaging IT architecture/infrastructure, and technology portfolio.

  • Conduct research on emerging technologies in support of infrastructure development efforts and recommend technologies that will increase cost effectiveness and infrastructure flexibility.

  • Assist in the design and implementation of end-to-end integrated systems for messaging platforms.

  • Develop and execute test plans to check infrastructure and systems technical performance. Report on findings and make recommendations for improvement.

  • Perform routine health assessments on environments in response to business user needs.

  • Develop, document, and maintain policies, procedures and associated training plans for system administration and appropriate use.

  • Ensure the integrity and security of enterprise data on servers, computers and databases in accordance to business needs and industry best-practices regarding privacy, security, and regulatory compliance.



  • Minimum of 5 years of MDM administration experience. (Design, Implement, Upgrade, Support, Maintain). MobileIron and Intune experience preferred.

  • Minimum of 5 years total Exchange administration experience. (Design, Implement, Upgrade, Support, Maintain)

  • Minimum of 5 years total Teams administration experience. (Design, Implement, Upgrade, Support, Maintain). Experience with Rooms, Phones, Voice/PBX preferred.

  • Minimum of 5 years administering Windows Server operating systems ranging from Server 2008-2022. (Design, Implement, Upgrade, Support, Maintain)


  • Bachelor’s degree in Computer Science or minimum 7 years of comparable experience

  • Microsoft Exchange, Office365, related certifications - Preferred

  • Microsoft Windows Server, Microsoft System Center, VMWare, ITIL - Preferred

  • MCITP - Preferred

  • MCDST - Preferred


  • Experience implementing/administering mobile device management platform – Advanced Level

  • Experience implementing/administering Exchange - Advanced Level

  • Experience implementing/administering O365 - Advanced Level

  • Experience implementing/administering Teams – Advanced Level

  • Experience working with formal architecture methodologies (ITIL) – Intermediate Level

  • Construct High Availability, Disaster Recover design – Intermediate Level

  • Hands-on installation, upgrade, production support of Exchange, Office 365, Teams, E-discovery, EMC SourceOne and MobileIron - Advanced Level

  • Windows OS - Advanced Level

  • Active Directory (Accounts, Groups, GPs, Security) – Intermediate Level

  • PowerShell – Advanced Level

  • Outlook - Advanced Level

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Job LocationUS-TX-Houston

Requisition ID 2022-2666

of Openings 1

Category Information Technology

Workplace Type Hybrid