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Bing Dai

@bingdai

Frontend engineer at Nexlin Spink who built streaming AI content workflows, a rich-text editor, and RAG trace visualization.

China

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At Nexlin Spink, I built the frontend architecture and core interactions for an AI content platform, including streaming chat and note generation, RAG trace visualization, and a customized BlockNote editor.

I also implemented a 12-node content-generation workflow with LangGraph and designed its RAG retrieval pipeline using embedding and reranking. WebSocket progress updates supported ASR and content-generation tasks, with P95 end-to-end latency below 10 minutes.

Previously, I developed customer-facing finance workflows and rebuilt frontend analytics at xftech, then built frontend features for ByteDance ·Volcano Engine’s CloudFun FaaS platform. Earlier, I developed browser-based audio and video experiences, including an MSE-based HLS / FLV player and a WebRTC-powered interactive application.

Experience

Work history, roles, and key accomplishments

Full-stack Agent Engineer

Nexlin Spink

Nov 2025 - Jul 2026 (8 months)

Built frontend architecture and core interactions for an AI content platform using Next.js 14, React, TypeScript, and Zustand. Implemented SSE-based streaming AI chat, rich-text editor, and WebSocket-based real-time progress updates.

Next.js React TypeScript Zustand SSE WebSockets BlockNote WaveSurfer.Js S3 LangGraph RAG Embeddings Reranking

Frontend Engineer

xftech

Jun 2023 - Sep 2025 (2 years 3 months)

Developed core customer-facing workflows for loan applications, OCR, facial verification, and payments. Rebuilt the company-wide frontend analytics tracking system and built an internal AI chat application.

React TypeScript A B Testing Analytics Beacon LLM Ollama Streaming

Frontend Engineer

ByteDance

Nov 2019 - Sep 2022 (2 years 10 months)

Built frontend capabilities for the CloudFun FaaS platform and designed a BFF layer to aggregate backend APIs. Contributed to WebRTC Web SDK development for real-time communication scenarios.

NodeJS Virtual Machines BFF WebRTC JavaScript TypeScript Visualization

Audio / Video Engineer

Gaodun

Jul 2017 - Oct 2019 (2 years 3 months)

Developed an MSE-based HLS/FLV web player and implemented P2P live-streaming with WebRTC. Delivered a full-stack Go game audio classroom with a Canvas-based interactive board.

MSE HLS FLV WebRTC ICE Canva Go