Voice AI Program Lead & Solution Architect specializing in the end-to-end design, delivery, and governance of enterprise Voice AI agents. My expertise bridges the gap between deep technical architecture (LLMs, Telephony, APIs) and measurable business outcomes with cross-functional alignment.

About Me

Professional Background

📡 Telecom Architect / Project Lead – Apple

Elk Grove, CA | Jan 2021 – Nov. 2024

  • Led strategic assessment, multi-year roadmap architecture, and migration planning for a global, mission-critical HelpLine Contact Center (Genesys Engage to SIPCluster/AWS/ISCloud).
  • Designed target-state, compliant architectures leveraging SIP, AWS, and internal cloud platforms while ensuring scalability and integration with existing corporate tools.
  • Owned communication, change management, and technical documentation across cross-functional engineering teams in AMR, EMEIA, and APAC.
  • Delivered seamless, large-scale platform implementations with zero material downtime, validating improved performance and operational reliability.

💼 Solution Architect, Technical Delivery Lead – Genesys

Daly City, CA | May 1998 – Jan 2020

  • Directed full-cycle technical delivery of Genesys On-Premise and Cloud solutions for leading clients across APAC.
  • Advised stakeholders on conversational architecture, translating business strategy into precise technical roadmaps.
  • Developed automated testing frameworks for voice/digital channels, accelerating issue detection and reducing post-deployment defects.
  • Provided L3 hands-on troubleshooting and technical support for mission-critical, high-availability contact center environments.

Technical Skills

Voice AI & LLM

LangGraph logo

LangGraph

LangChain logo

LangChain

Agentic AI logo

Agentic AI

Prompt Engineering logo

Prompt Engineering

RAG logo

RAG

ASR/TTS logo

ASR/TTS Pipelines

Voice & Telephony

Twilio logo

Twilio Voice

Media Streams logo

Media Streams

SIP logo

SIP

WebRTC logo

WebRTC

IVR logo

IVR

Genesys logo

Genesys

Backend & Cloud

Python logo

Python

Flask logo

Flask

JavaScript logo

Node.js/TypeScript

API logo

REST APIs

Redis logo

Redis

Docker logo

Docker

Cloud logo

AWS/GCP

SQL logo

SQL

Delivery & Tools

Jira logo

Jira

Agile logo

Agile

Sentry logo

Sentry

GitHub logo

GitHub

Featured Projects

🎤 Enterprise-Grade Voice AI Delivery & Observability

Production-ready full-stack solution featuring Twilio/WebRTC integration, human-agent handoff, 38 custom tools, and sub-5s latency optimization via Sentry monitoring.

Full-Stack Delivery Low-Latency Architecture Human Handoff Observability Telemetry

Agentic AI POC: Voice-First Task Management

Voice AI solution for managing tasks, reminders, and calendar events through natural language conversations. Integrated with VAPI platform and Google Calendar API for seamless productivity management via phone calls.

Voice AI Natural Language Processing Proof-of-Concept

Agentic AI POC: Voice-First Task Management

Voice AI solution for managing tasks, reminders, and calendar events through natural language conversations. Integrated with Synthflow platform and Google Calendar API for seamless productivity management via phone calls.

Voice AI Natural Language Processing Proof-of-Concept

Agentic AI POC: LangGraph + MCP + Langflow

Advanced orchestration POC demonstrating LangGraph state management, MCP (Model Context Protocol) tool integration, and Langflow visual workflows for voice agent development.

Agentic AI Tool Orchestration Proof-of-Concept

Full-Stack Blog Application

A full-stack blog solution with register, login/out, post, comment, delete with users management.

Contact Me

Get in Touch

I specialize in the end-to-end design, delivery, and governance of enterprise Voice AI agents. My expertise bridges the gap between deep technical architecture (LLMs, Telephony, APIs) and successful program execution (POC management, SOW translation, executive reporting). Whether you're looking to build agentic AI systems, integrate voice platforms, or scale enterprise deployments, I'd love to discuss how we can bring your Voice AI vision to life.

hjleegcti@gmail.com
+1 (925) 989-7818
San Francisco, CA