- Minimum 12 years of experience in a particular technical and/or business application, product, platform, or methodology.
- Develop and maintain call-flow diagrams, signaling validation scripts, and interoperability matrices across PSAC I, PSAC II, and vendor sites.
- Collaborate with MSCI, Motorola, NICE, Cisco, and telecom carriers to resolve interoperability, signaling, and audio quality issues.
- Support testing, troubleshooting, and cutover events involving critical voice infrastructure.
| - Design and validate call routing workflows per NENA STA-010, STA-012, and STA-019 standards.
- Configure and analyze SIP messages, SDP negotiation, and trunk performance across SBCs and gateways.
- Maintain mappings between ESRP, BCF, and CHS components for voice, text, and multimedia calls.
- Ensure correct implementation of ECRF/LVF call routing functions for location-based dispatching.
- Work with network and integration engineers to ensure ESiNET-level QoS, DSCP tagging, and failover routing.
- Validate carrier connectivity for private IP trunk services.
- Support call path redundancy testing and performance benchmarking between PSAC I, PSAC II, and NGCS vendor data centers.
- Analyze SIP traces, CDRs, and packet captures to validate system behavior under load and failover.
- Collaborate with the Lead Test Engineer to develop test scripts and call-flow verification plans for production readiness.
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