Voice AI Development

Real-Time Conversational Agents

Architecting production-grade voice AI agents using LiveKit, Deepgram, Cartesia, and GPT-4/5. Building adaptive dialogue pipelines with VAD, ASR, and TTS for healthcare and enterprise applications.

Gregory ChinAI Full-Stack Engineer

Why Choose Me?

I deliver exceptional results through a proven approach and commitment to quality

Fast Delivery

Quick turnaround times without compromising quality. Agile development with regular updates.

Production Quality

Enterprise-grade solutions built with best practices. 8+ years of professional experience.

Ongoing Support

Continuous support and maintenance after launch. Long-term partnership approach.

Secure & Compliant

Built with security and scalability in mind. HIPAA/SOC2 compliance expertise.

My Development Process

A streamlined approach that ensures your project is delivered on time and exceeds expectations

01

Discovery

Understanding your requirements, goals, and technical constraints

02

Planning

Creating detailed architecture, roadmap, and timeline

03

Development

Building your solution with regular updates and demos

04

Testing

Rigorous testing, QA, and performance optimization

05

Launch

Deployment, go-live support, and documentation

06

Support

Ongoing maintenance, improvements, and scaling

Featured Projects

A collection of my work in AI, real-time communication, and full-stack development

Social AI

Butterflies AI
Butterflies AI
The first AI social network where humans and AI characters coexist. Led full-stack development for character generation using ComfyUI, Stable Diffusion, and custom training pipelines. Built cross-platform mobile experiences with React Native.
Social AIGenerative AIReact NativeComfyUI
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Healthcare AI

Vocca AI
Vocca AI
Enterprise voice AI platform for healthcare workflows. Architected real-time voice agents handling patient intake, clinical documentation, and provider communication using ASR/TTS pipelines with HIPAA-compliant infrastructure.
Voice AIHealthcareHIPAAASR/TTS
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Hippocratic AI
Hippocratic AI
Clinical AI automation platform providing decision support for medical professionals. Implemented generative AI for email drafting, clinical note summarization, and visual content generation for patient education.
HealthcareGenerative AIClinicalLLM
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Glass Health
Glass Health
Medical knowledge AI empowering clinicians with instant clinical insights. Developed AI-driven diagnostic tools, integrated secure APIs for intake and summarization consumed by web apps and call workflows.
HealthcareMedical AIAPIsNLP
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LiveKit Examples

Icon Streamer
Icon Streamer
Live streaming platform where voices unite and stories amplify. Built real-time meeting and streaming infrastructure using LiveKit, WebRTC, and scalable media servers for seamless multi-participant broadcasts.
LiveKitStreamingWebRTCReal-Time
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AI Avatar + RAG + Pinecone
AI Avatar + RAG + Pinecone
Real-time AI avatar system with retrieval-augmented generation. Built using LiveKit for WebRTC video, Pinecone for vector search, and GPT-4 for context-aware responses with lifelike avatar rendering.
LiveKitRAGPineconeAvatarWebRTC
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Call Transfer + Meeting AI Agent
Call Transfer + Meeting AI Agent
Intelligent call routing with LiveKit telephony integration (Twilio, FreeSWITCH). Built smart call transfer, automated transcription, real-time meeting summaries, and reduced latency across high-traffic environments.
LiveKitTwilioFreeSWITCHAI Agent
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Glite AI
Glite AI
Next-gen AI communication platform on LiveKit. Developed real-time audio pipelines managing interruptions, silence detection, and turn-taking. Optimized jitter/packet loss for streaming reliability under concurrent load.
LiveKitVoice AIWebRTCReal-Time
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AI Mobile Apps

The Pearl
The Pearl
iOS AI companion app delivering personalized conversational experiences. Built with React Native featuring intelligent chat, voice interactions, and contextual awareness powered by advanced NLP models.
iOSReact NativeNLPMobile
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Magic AI Room
Magic AI Room
Android generative AI chat application powered by GPT models. Features image generation, text-to-speech, and multi-modal AI interactions with seamless cloud integration and offline capabilities.
AndroidGPTGenerative AIMobile
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Video Streaming

Instantly Inc
Instantly Inc
Enterprise real-time video streaming platform. Architected scalable streaming with WebRTC, custom CDN infrastructure, adaptive bitrate, and ultra-low latency delivery for thousands of concurrent viewers.
StreamingWebRTCCDNReal-time
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UHF App
UHF App
High-performance video streaming and content delivery platform. Implemented adaptive streaming protocols, content caching strategies, and global edge network integration for optimal playback worldwide.
StreamingVideoCDNEdge
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Swip TV
Swip TV
Interactive video streaming with social features and real-time engagement. Built React-based video player with custom controls, live chat integration, and interactive overlays for enhanced viewer experiences.
StreamingInteractiveSocialReact
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Other AI Tools

Creatify AI
Creatify AI
AI-powered video advertisement generation platform. Developed generative AI pipeline for script-to-video conversion, automated voiceovers, dynamic scene composition, and brand-consistent ad creation at scale.
AI VideoMarketingGenerative AIAutomation
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Tagshop AI
Tagshop AI
AI-driven e-commerce solution with intelligent product tagging and visual search. Implemented computer vision models for automatic product recognition, similarity matching, and personalized shopping recommendations.
AIE-commerceComputer VisionML
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About Me

AI Full-Stack Software Engineer with 8+ years of experience specializing in Voice AI agents, generative video/multimodal systems, and LLM-powered SaaS for healthcare and enterprise.

Languages & Frameworks

TypeScriptPythonGoReactNext.jsNode.jsFastAPIReact Native

AI & LLM

GPT-4/5ClaudeLangChainRAGComfyUIStable DiffusionCrewAI

Voice AI & Real-Time

LiveKitPipecatWebRTCTwilioDeepgramElevenLabsCartesia

Cloud & Data

AWSGCPDockerKubernetesPostgreSQLMongoDBPinecone

Experience

Senior Software Engineer

Jul 2025 - Present

Self Employed

Voice AI agents with LiveKit, Deepgram, and GPT-4/5

Senior Software Engineer

Dec 2023 - Jun 2025

Butterflies AI

First AI social network with character generation

Software Engineer

Feb 2019 - Nov 2023

Theoria Medical

Healthcare AI reducing operational effort by 35%

Software Engineer

Aug 2017 - Jan 2019

Dayta AI

AI video analytics for 150k+ daily videos

B.S. Computer Science

Hong Kong College of Technology

2013 - 2017

Ready to Transform Your Business?

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Open to full-time opportunities, consulting projects, and collaborations in Voice AI, real-time communication, healthcare technology, and LLM-powered SaaS.