t
tonylim8009

JongChul L

@tonylim8009

Head of AI RD Center

South Korea
Korean
About me
I have spent about 30 years building telecom software, including network protocols, VoIP, IMS, and SIP systems. Currently, I lead the AI R&D Center at UANGEL, where I design carrier-grade systems that integrate LLMs and speech AI under strict telecom constraints. I specialize in voice AI, real-time communication, and cloud-native MLOps.... Read more

Skills

t
tonylim8009
JongChul L
Offline • 

See my services

AI Integrations
I will design and build your sip and voip ai voice agent gateway
From$400 / projectMore details
AI Websites & Software
I will build a webrtc call center to replace your pbx
From$400 / projectMore details

Portfolio

Work experience

Self-Employed_/ Freelancer

Independent Voice & AI Systems Architect

Self-Employed / Freelancer • Freelance

Jul 2025 - Present • 1 yr 3 mos

Designed and built 40+ MVPs in 12 months, design document first and code second: AI voice gateway, end-point detection module, macOS and Android SIP softphones, WebRTC voice contact center, agent control plane for LLM dialog flows, and on-prem knowledge search with Korean embeddings.

UANGEL

Head of AI R&D Center

UANGEL • Full-time

Jul 2017 - Present • 9 yrs 3 mos

Lead a 16-person AI R&D center (AI Lab and AI Product team) at a telecom software company. Own architecture for real-time voice AI: SIP/RTP AI voice gateways, WebRTC contact-center platform, STT/TTS pipelines, and LLM agents with safety gates. Moved legacy telecom servers to cloud-native network functions (CNF) on Kubernetes.