David Villaume

Background

About David Villaume

Self-taught Senior VoIP Engineer and Architect with 15+ years of hands-on experience designing, deploying, and scaling high-load SIP-based communication platforms in production environments.Starting as a network support technician, I've built my expertise through real-world problem-solving, continuous learning, and deep technical curiosity—progressing from support roles to architecting enterprise-grade VoIP platforms handling millions of calls.Core Expertise:VoIP Stack Mastery: FreeSWITCH, Kamailio, Broadworks, Oracle SBC, RTPEngineHigh-Availability Architecture: Multi-datacenter, redundant, scalable platforms handling millions of callsSIP Protocol & Troubleshooting: Deep expertise in SIP flows, RTP streaming, NAT traversal, Homer/HEPic monitoringCarrier Interconnection: Operator peering, normalization, STIR/SHAKEN implementation, LCR optimizationSecurity & Anti-fraud: Centralized security systems, real-time threat detectionModern Integrations: Microsoft Teams Direct Routing, WebRTC, IVR with AI agentsRecent Innovations:Built microservices-based VoIP platforms with intelligent routing and failover mechanismsDeveloped centralized recording platform with self-hosted STT and AI-driven analyticsCreated AI-powered IVR modules with context awareness, RAG, and multi-LLM integrationExtensive Python API development for provisioning, CDR processing, debugging, and business logicTechnical Stack:VoIP: FreeSWITCH, Kamailio, RTPEngine, Oracle SBC, Broadworks, ComuniGateDatabases: Redis, KeyDB, MariaDB, PostgreSQL, ClickHouseMonitoring: Homer/HEPic, Observium, Smokeping, custom solutionsInfrastructure: Cisco, Checkpoint, Linux administrationDevelopment: Python, Bash scripting, microservices architectureSelf-Taught Journey:My career path reflects a passion for telecommunications and continuous learning. From troubleshooting network issues to architecting complex VoIP ecosystems and integrating cutting-edge AI solutions, I've developed expertise through hands-on experience, documentation deep-dives, and solving real production challenges at scale.