VoIP System Administrator (Government) at AT&T Careers - AT&T Careers
Skip to Main Content

VoIP System Administrator (Government)

Honolulu, Hawaii

AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Department of Defense. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.

Our Defense Team supports our Nation’s warfighters, providing, operating and assuring critical voice and network services for the full spectrum of military operations.

AT&T has an opening for a VoIP System Administrator (Government) to support the Hawaii Network Services (HNS), in providing Cisco VoIP services to the Department of Defense customers.

Job Duties/Responsibilities:
  • Experience working with network data infrastructure to ensure a secure transfer of data between multiple locations via internal and external networks, including defining security boundaries
  • Working with vendors, clients, carriers and technical staff on VoIP implementations, optimization and ongoing management
  • Service delivery and network integration experience using a variety of voice, video and data network protocols
  • Perform patching and applying application updates to Cisco Call Manager and ancillary systems
  • Experience in working to maintaining systems per Security Technical Implementation Guide (STIG) policies
  • Information Technology administrator experience with various systems such as VMWare, Linux and Windows
  • Additional certifications with major system vendors such as Cisco, Avaya, etc.
Required Clearance:
Active DoD Secret (#secret)

Required Qualifications:
  • Bachelor’s Degree in a related technical discipline; or the equivalent combination of education, technical training and work experience.
  • Experience engineering enterprise data, voice and networks (2-5 years minimum). Experience Operating, Administering and Maintaining VoIP services consumed by the Government (2-5 years minimum)

Desired Qualifications:
Current Cisco Certified Network Professional (CCNP) certification (minimum)

Active DoD 8570 Certification.

AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws. AT&T is an Affirmative Action/Equal Opportunity Employer and we are committed to hiring a diverse and talented workforce. EOE/AA/M/F/D/V

Job ID 2012887 Date posted 07/29/2020

AT&T a good place to be


I believe in AT&T and know they are at the edge of technology. The company believes in their people and offers all kinds of training to enable us to take on new jobs and to stay at the front of technology. The software defined network which we are building is the newest technology and AT&T has been involved since early 2000s. You have a great deal of autonomy at AT&T as long as you get the job done. You have the ability to do different jobs and to be challenged at all times.


I really have little negative to say about AT&T I have worked here for 35 years on March 23rd of 2016.

  • One Star Rating
  • Two Star Rating
  • Three Star Rating
  • Four Star Rating


This is the life – the #LifeAtATT, that is. We’re creating what’s next and having a blast doing it. You’re looking for proof? Well, see for yourself.

Back to top