Voice IT Field Support Specialist (HT3) (Government)
Columbia, Maryland
AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. 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.
RIS I is the delivery of regional IT services to the end user. We offer support of end user devices including desktop, workplace peripherals, and voice and video devices. We support local and campus area networks, including wireless and cable plant.
AT&T is seeking a highly motivated anddetail-oriented Voice IT Field Support Specialist: To support RIS I regional IT service delivery with a focus on voice infrastructure, telephony modernization, and end-user communications support. This role provides hands-on field and technical support for legacy telephone environments, VoIP and unified communications migrations, site surveys, cutover planning, testing, documentation, and transition-to-operations activities. The selected candidate will help ensure secure, reliable, and mission-ready voice services for customers by coordinating with technical teams, validating requirements, resolving implementation issues, and supporting successful modernization outcomes in a customer-site environment.
Description of Job Duties/Responsibilities:
- This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.
- Assess legacy TDM telephone environments, including devices, circuits, analog lines, cabling, power, rack space, user counts, and supporting infrastructure.
- Document current-state voice architecture and identify migration requirements, technical dependencies, transition risks, and implementation timelines.
- Develop modernization and migration plans for transitioning users and devices from legacy TDM platforms to VoIP and unified communications solutions.
- Coordinate number porting, device replacement, dial plan validation, phased deployment activities, provisioning, feature setup, and service activation.
- Validate network readiness for VoIP implementation, including power requirements, gateway and switch compatibility, and integration with enterprise communications environments.
- Manage installation, configuration, activation, and testing of VoIP telephone devices and related services.
- Develop and execute cutover plans, including pre- and post-implementation testing of call routing, voicemail, emergency calling, user functionality, and service continuity.
- Coordinate with telephone central office personnel, technical teams, and customer stakeholders to resolve implementation issues and minimize operational disruption.
- Prepare implementation documentation, update inventories and diagrams, and support transition-to-operations activities.
- Provide user communications, training, and post-implementation support, and coordinate decommissioning of retired TDM devices and services once VoIP operations are stable and accepted.
Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)
Required Qualifications:
Minimum Education and Experience:
- High school diploma or GED required.
- Minimum of 8 years of relevant IT experience.
- Must possess 8570 Certification; Security+ certification is highly preferred.
Technical Skills:
Professional Competencies:
- Excellent analytical and problem-solving skills with the ability to manage complex technical issues independently.
- Outstanding verbal and written communication skills to effectively collaborate with team members and support end-users.
- Strong organizational skills, with the ability to manage time and priorities efficiently and work with minimal supervision.
Additional Requirements:
- In order to be considered for this position, you must have a valid driver’s license and an acceptable driving record and be eligible to drive an AT&T company vehicle.
- Ability to lift and move items weighing up to 50 lbs. as required.
- Availability to work an 8-hour shift scheduled between the hours of 6:00 AM and 6:00 PM, as determined by management.
Ready to join our team? Apply today!
Our Voice IT Field Support Specialist (HT3) (Government) earns $72,000 - $101,600 yearly. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.
Joining our team comes with amazing perks and benefits:
Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays) *Pro-rated when working less than 40 hrs/wk.
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected · Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phone
Weekly Hours:
40Time Type:
RegularLocation:
Columbia, MarylandIt is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.
Job ID R-112753 Date posted 06/12/2026
Benefits
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- Paid Time Off
- Tuition Assistance
- Medical and dental plans
- Discounts
- Training & Development
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