Voice Engineer III

Job Description We're seeking an experienced Voice Engineer III to join our team in San Antonio, TX. In this fully onsite role, you'll ensure the continuous, secure operation of our DISA voice and video communications environment by leading sustainment, maintenance, and change-management activities. Location: San Antonio, TX Salary: $70,000 - $75,000 Work Model: Onsite Responsibilities Maintain and optimize a large, high-availability IP telephony and video network Configure, troubleshoot, and validate voice/video services, including call routing, search spaces, partitions, and device profiles Perform capacity planning and implement approved configuration changes with thorough documentation Install and manage Cisco or Juniper routers, switches, and distributed firewall devices Develop and update technical procedures, work instructions, and reporting tools Analyze SIP signaling and call-flow issues to isolate and resolve complex faults Troubleshoot remote-site registration, media path, and signaling failures Review and approve change requests for accuracy and compliance Conduct detailed fault analysis for voice subscribers, call handlers, and routing rules Requirements Active DoD Secret security clearance DoD-8570 IAT Level II certification (e.g., Security+ CE) Bachelor's degree plus 4-8 years of related experience, or Master's degree plus 2-6 years; equivalent combinations considered Hands-on experience with one or more enterprise voice platforms (e.g., Cisco CUCM, CUBE, Unity; Avaya Aura; Oracle SBC) Deep understanding of SIP internetworking, signaling, and call-flow mechanics Proven track record of advanced fault analysis across routing, switching, security, and large-scale voice deployments Organizational Skills Strong documentation habits and comfort with diagramming network topologies Familiarity with WAN fundamentals and capacity-planning methodologies Preferred: Knowledge of SRTP (with G.711/G.729 codecs) and DTMF handling Experience supporting IPSec/MPLS VPNs and BGP routing Background in QoS configuration for voice and critical traffic streams Hands-on troubleshooting of IPSec tunnels and distributed firewalls Benefits Core Benefits: Paid Time Off PTO):TEN (10) Paid days off & FIVE (5) Floating days off. Holidays: 11 Paid Holidays. Flex time can be utilized instead of holiday time usage. Payroll: Paid Bi-Monthly. 401(k): Partnered with the SECOND LARGEST Retirement plan provider in the U.S. Guaranteed 3% match. Eligibility - 21 years of age or older, after 3 months of employment Individual or company-wide performance and recognition awards (Quarterly Health Benefits: UNITED HEALTHCARE PPO, extensive national coverage. INCLUDES: Medical/Dental/Vision/HSA. Eligible on the first of the month, immediately after the start date. Submit the enrollment form within 30 days of your start date otherwise, you will have to wait until October for the new year enrollment. Quality of Life Benefits: Training & Career Development Reimbursement of Tuition and training needed to support career development. $150 monthly reimbursement contribution paid monthly towards parking expenses. Receipts must be submitted by the close of business on the 25th of each month. Reimbursements will be paid on the first payroll AFTER reimbursements are submitted each month. Special Benefits: Performance bonus - Project-based Yearly bonus - Company based

Created: 2026-03-10