Senior Telecommunications Systems Engineer – SIP/SBC/NG911 (Secret Clearance)

Our client is seeking a Senior Telecommunications Engineering Specialist to support deployment and integration of Ribbon/Sonus/Genband gateways , Session Border Controllers , and SIP interconnection engineering for mission‑critical voice systems. This role also supports E‑911/NG911 call routing, PSAP integration , and connectivity across federal emergency‑communications environments. The position plays a key role in ensuring reliable emergency call delivery between gateway platforms, federal routing systems, and public safety answering points. Onsite | No Visa Sponsorship | Relocation Assistance: Yes Work Schedule: Monday–Friday | 8:30AM-5:00PM (ET) Please Note: Candidates must hold an Active Secret clearance at the time of application Responsibilities: Telecommunications Engineering & Integration Identify technical risks and recommend mitigation strategies. Deploy and integrate Ribbon Federal Edge / Sonus / Genband gateways. Support configuration, testing, and validation of Session Border Controllers. Analyze and resolve E‑911 call‑flow issues, including signaling and media path failures. Perform deployment validation, readiness assessments, and technical documentation. Engineer and troubleshoot SIP interconnections, policy routing, and interoperability between voice domains. Emergency Communications & Federal Connectivity Assist with issue resolution affecting gateway performance, SIP routing, and emergency call delivery. Coordinate technical activities related to E‑911/NG911 routing, location validation, and interoperability. Support integration and connectivity among gateway platforms, federal routing systems, and PSAP environments. Qualifications (Must-Haves) Active Secret clearance. 5+ years of VoIP/SIP engineering. 10+ years telecommunications engineering experience. Bachelor's degree in Telecommunications, Engineering, IT, or equivalent experience. Hands‑on experience with: Ribbon / Sonus / Genband, Session Border Controllers, SIP signaling and interconnects, E‑911 or PSAP integration and Wireshark for packet‑level troubleshooting. Preferred Skills: Familiarity with DISA VISP. Cisco certifications (CCNP/CCIE) Experience with NG911 public safety communications. Experience supporting federal emergency‑communications programs or Army voice modernization. Benefits & Perks: EAP 401(K) Plan Paid Time Off Paid Holidays Life insurance Bereavement Leave Disability Coverage Medical, Dental and vision