Open to opportunities

Long Hoàng

@longhong

Message

I build and ship Flutter mobile products with real-time communication, AI workflows, and scalable Go backends.

Vietnam

Message

What I'm looking for

I'm looking to build production mobile products where I can own Flutter architecture, native integrations, AI features, real-time communication, and backend workflows.

At Pegatech, I build uSwap, an AI face-swap and lipsync app, including a custom video editor, native iOS/Android media plugins, TensorFlow Lite face detection, and RevenueCat monetization.

I also independently launch and maintain TrueSay and sNote, combining Flutter, Go, real-time video and voice, AI transcription, RAG workflows, local-first sync, and cloud deployment.

Experience

Work history, roles, and key accomplishments

Current

Independent Product Developer

Current

TrueSay

Apr 2026 - Present (5 months)

Built, launched, and independently maintain an AI-powered real-time interpretation platform for video and voice conversations, enabling live translation and AI-assisted meeting workflows.

Flutter Go Fiber MongoDB Firebase Google Translate OpenAI RevenueCat OneSignal

Current

Independent Product Developer

Current

sNote

Aug 2025 - Present (1 year 1 month)

Built, launched, and independently maintain a full-stack AI note-taking platform supporting multimodal content processing, AI-powered writing, and cross-device synchronization.

Flutter Go Fiber MongoDB Firebase OpenAI API RevenueCat OneSignal Docker Google Cloud Run RAG OCR

Current

Flutter Developer

Current

Pegatech Co., Ltd.

Feb 2025 - Present (1 year 7 months)

Contributed to multiple mobile products, with uSwap as the primary project, focusing on client-side architecture, multimedia processing, native platform integration, AI-powered features, and product monetization.