Telephony Engineer

TEKsystems; Columbia (SC); On-site; USD 62,000 - 76,000; Full time

Benefits offered by this job

Medical benefits

401(k)

Life Insurance

Paid time off

Job summary

TEKsystems in Columbia, SC is seeking an Expert Telephony Engineer for a 9-12 month on-site contract to support enterprise telephony and unified communications. You will administer VoIP, Avaya PBX, and related voice infrastructure, handle moves/adds/changes, IVR, E911 data, and lead telephony projects.

The role requires strong troubleshooting of voice quality, routing, and SBCs, with a focus on continuous improvement and detailed documentation.

Qualifications

• Expert-level Avaya on-prem PBX administration in enterprise environments.
• VoIP and unified communications administration across voice, voicemail, conferencing, and collaboration services.
• Strong knowledge of call routing, vectoring, ARS routing tables, dial plans, and related telephony design concepts.
• Experience with SIP, RTP, QoS, SBCs, PSTN integration, and voice infrastructure components.

Responsibilities

• Provide operational and advanced telephony administration.
• Support moves, adds, changes, and disconnects for voice and UC services.
• Administer voicemail, conferencing, IVR, vectoring, and telephony infrastructure.
• Maintain accurate E911 location information and documentation.
• Lead telephony projects and system enhancements as technical lead.
• Design, maintain, and implement enterprise telephony improvements.

Skills

Avaya PBX

VoIP & UC

Telephony design & routing

SIP & voice infra

Troubleshooting voice

Job description

*Description*

This is a 9-12 month contract opportunity with the possibility of extension.

This is an onsite Telephony Engineer consulting opportunity supporting our client in Columbia, SC. The role is responsible for operational support, administration, engineering, maintenance, and continuous improvement of the client's enterprise telephony and unified communications environment.

Responsibilities Include:

• Provide operational and advanced telephony administration.
• Support moves, adds, changes, and disconnects for voice and unified communications services.
• Administer voicemail, conference services, call center services, IVR systems, vectoring, and telephony infrastructure.
• Maintain accurate E911 location information.
• Create technical documentation, knowledge base articles, and operational records.
• Serve as technical lead for telephony projects and system enhancements.
• Research, design, maintain, and implement enterprise telephony improvements.
• Configure and install telephony hardware including media gateways, telephones, and safety devices.
• Develop standards, processes, and configuration documentation.

*Skills*

Voip, Avaya, Unified communications, call routing, pbx

*Top Skills Details*

1. 1. Avaya PBX Administration Experience: Proven experience supporting and administering Avaya on-premise PBX systems within an enterprise environment.
2. 2. VoIP & Unified Communications Experience: Experience administering VoIP and unified communications platforms, including voice, voicemail, conferencing, and collaboration services.
3. 3. Telephony Network Design & Call Routing Experience: Knowledge of telephone network services, telephony network design, dial plans, call routing, vectoring, ARS routing tables, and route patterns.
4. 4. SIP & Voice Infrastructure Experience: Strong knowledge of SIP, RTP, QoS, voice gateways, session border controllers (SBCs), PSTN integration, and related voice technologies.
5. 5. Telephony Troubleshooting Experience: Experience troubleshooting voice quality issues, call routing problems, carrier connectivity issues, and E911 services.

PREFERRED:

1. 1. Systems Administration Experience: Advanced knowledge of systems administration techniques and tools.
2. 2. Automation Experience: Experience identifying and implementing automation opportunities within telephony operations.

*Additional Skills & Qualifications*

Ability to work onsite and participate in the on call rotation

*Experience Level*

Expert Level

*Job Type & Location*

This is a Contract position based out of Columbia, SC.

*Pay and Benefits*

The pay range for this position is $45.00 - $55.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

*Workplace Type*

This is a fully onsite position in Columbia,SC.

*Application Deadline*

This position is anticipated to close on Aug 6, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands‑on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance:

Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector:

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI):

We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.