Voice Engineer

Job ID: 112232
Location: St. Louis, Missouri  [On-Site]
Category: Infrastructure
Employment Type: Contract
Date Added: 03/17/2026
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We are seeking a highly skilled and experienced Voice/VoIP Engineer to lead the design, deployment, and troubleshooting of large-scale voice solutions. In this role, you'll play a critical part in shaping our voice infrastructure, ensuring seamless communication services across diverse platforms and regions.

Key Responsibilities:

  • Design, implement, and support SIP-based voice and VoIP solutions, including call center applications and IVR systems.
  • Troubleshoot complex SIP signaling, media flows, and voice-related issues across multiple systems, ensuring high availability and quality.
  • Translate business needs into scalable technical voice and integration architectures.
  • Own and drive technical decisions independently, working with minimal supervision.
  • Collaborate closely with engineering, operations, and deployment teams during design, escalation, and testing phases to ensure smooth integration and release.
  • Develop automation scripts and operational tools to enhance efficiency and reliability of voice systems.

What We're Looking For:

  • Extensive hands-on experience with SIP protocols, media troubleshooting, and signaling analysis.
  • Strong Linux skills, including command-line support and diagnostic expertise.
  • Proven experience with VoIP platforms such as PBX, SIP trunking, and service provider voice environments.
  • Analytical problem-solving skills for system-level issues involving multiple components.
  • Basic scripting knowledge to support automation and operational improvements.

Preferred Qualifications:

  • Experience with Session Border Controllers (SBCs) like Ribbon and AudioCodes (Oracle/Acme Packet or similar).
  • Familiarity with BroadWorks or comparable carrier-grade voice platforms.
  • Exposure to Cisco voice technologies.
  • Experience supporting large-scale, multi-region or multi-country voice deployments.
Publishing Pay Range: $50.00 – $54.00 USD Hourly

 

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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