Chris Song
AI-Powered MVP Builder for Startups | Web & Mobile: React · Next.js · React Native · FastAPI · LangChain | Ex-Pactera & DHC
Dalian, China
Contact info
💼 Self-Employed
🎓 Dalian University of Technology
About
I build AI-powered products for startups — web apps, mobile apps (React Native), or both. You bring the idea, I deliver the full cross-platform product.
DHC Software and Pactera — shipping production systems for enterprise clients since 2016. Now I apply that reliability to startups — fast delivery, production-quality code.
RECENT WORK
- AI writing SaaS: Next.js + FastAPI + OpenAI API + Stripe. Wireframe to paying users in 5 weeks.
- Cross-platform fitness app: React Native (iOS + Android), AI workout recommendations. Both app stores, 6 weeks.
- RAG knowledge base: Document upload, hybrid search, React chat UI. Pinecone + LangChain. Support team 3x faster.
- Crypto portfolio tracker: React Native + Solidity smart contracts + real-time feeds.
- Workflow automation: LangChain agents replacing 20hrs/week of manual data entry.
WHAT I BUILD
- AI SaaS MVPs — idea to deployed product with auth, billing, analytics
- Cross-platform mobile — React Native (iOS + Android), one codebase
- RAG systems — chatbots, knowledge bases, document Q&A
- Web + Mobile bundles — launch both together, shared backend
- AI automation — LangChain agents for workflow automation
STACK
React · Next.js · React Native · Expo · TypeScript · FastAPI · Node.js · PostgreSQL · Pinecone · LangChain · OpenAI API · Claude API · Stripe · Solidity · Rust/WASM · Docker
985 university (DUT). Async-first workflow — I deliver on schedule regardless of where your team is located.
Have a startup idea that needs building? Send me a message — I'll tell you what it takes to ship it.
为初创公司构建AI产品——Web应用、移动应用(React Native跨平台)、或两者同时交付。你出想法,我交付完整的跨平台产品。
华信3年+文思海辉4年,为企业客户交付生产级系统。现在用于初创公司——快速交付,生产级代码。
最近项目
- AI写作SaaS:Next.js + FastAPI + OpenAI API + Stripe。5周上线。
- 跨平台健身App:React Native(iOS + Android),AI训练推荐。6周。
- RAG知识库:文档上传、混合搜索。Pinecone + LangChain。客服效率3倍。
- 加密货币追踪器:React Native + Solidity智能合约 + 实时行情。
- 工作流自动化:LangChain智能体替代每周20小时手工录入。
我做什么
- AI SaaS MVP — 从想法到部署,带认证、计费、分析
- 跨平台移动应用 — React Native,一套代码
- RAG系统 — 聊天机器人、知识库、文档问答
- Web+移动端套餐 — 同时上线,共享后端
- AI自动化 — LangChain智能体做工作流自动化
技术栈
React · Next.js · React Native · Expo · TypeScript · FastAPI · Node.js · PostgreSQL · Pinecone · LangChain · OpenAI API · Claude API · Stripe · Solidity · Rust/WASM · Docker
985高校(大连理工大学)。异步优先,按时交付。无论您的团队在哪里,我都准时交付。
有创业想法需要落地?发消息给我——我来告诉你怎么把它做出来。
Top skills: React Native · LangChain · FastAPI · Next.js · OpenAI API
Experience
💼
Full-Stack AI Developer & MVP Builder
Self-Employed · Freelance
Jul 2023 – Present · 2 yrs
- AI writing SaaS — live in 5 weeks
- Cross-platform fitness app — 6 weeks
- RAG knowledge base — support 3x faster
- Workflow automation — saved ~20 hrs/week
- Crypto portfolio tracker — React Native + Solidity
🏢
Full-Stack Developer & Blockchain Engineer
Pactera (文思海辉) · Contract
Jul 2019 – Jun 2023 · 4 yrs
- React + Next.js, FastAPI, Node.js, PostgreSQL
- Solidity smart contracts + Chainlink oracles
- Rust/WASM — processing 5s → <1s
- Docker + Kubernetes microservices
🏢
Full-Stack Developer
DHC Software (华信) · Full-time
Jul 2016 – Jun 2019 · 3 yrs
- Web apps for Japan/US clients
- E-commerce, dashboards, reporting
🎓
B.Eng. Software Engineering
Dalian University of Technology · 985/211
2012 – 2016
💼
全栈AI开发者 & MVP构建者
自雇 · 自由职业
2023.07 – 至今 · 2年
- AI写作SaaS——5周上线
- 跨平台健身App——6周
- RAG知识库——客服效率3倍
- 工作流自动化——每周省20小时
- 加密货币追踪器——React Native + Solidity
🏢
全栈开发 & 区块链工程师
文思海辉 · 合同
2019.07 – 2023.06 · 4年
- React + Next.js, FastAPI, Node.js
- Solidity智能合约 + Chainlink预言机
- Rust/WASM——处理5秒→1秒以内
- Docker + Kubernetes微服务
🏢
全栈开发工程师
华信计算机 · 全职
2016.07 – 2019.06 · 3年
🎓
软件工程 · 工学学士
大连理工大学 · 985/211
2012 – 2016
Featured Projects

AI Writing Assistant SaaS
Next.js + FastAPI + OpenAI API + Stripe. Wireframe to paying users in 5 weeks.
Next.jsFastAPIOpenAIStripe

RAG Knowledge Base
Hybrid search, Pinecone + LangChain. Support team 3x faster.
LangChainPineconeFastAPIReact

AI写作助手SaaS
Next.js + FastAPI + OpenAI API + Stripe。5周上线。
Next.jsFastAPIOpenAIStripe

RAG知识库
混合搜索,Pinecone + LangChain。客服效率3倍。
LangChainPineconeFastAPIReact

跨平台健身App
React Native + Expo。6周上架。
React NativeExpoFastAPI

管理面板&数据分析
RBAC、Stripe收入追踪、自动报表。
Next.jsFastAPIStripe

加密货币组合追踪器
React Native + Solidity + WebSocket实时。
React NativeSolidityWebSocket

AI客服聊天机器人
RAG + 自动回答 + 人工转接 + 分析面板。
LangChainPineconeWebSocket
Skills
AI / ML
LangChainLangGraphCrewAIOpenAI APIClaude APIRAGPinecone
Frontend
ReactNext.jsTypeScriptTailwind CSSVue.js
Mobile
React NativeExpoiOS + Android
Backend
FastAPINode.jsExpress.jsDjangoPython
Blockchain
SolidityHardhatEthers.jsChainlinkRust/WASM
Infrastructure
DockerKubernetesPostgreSQLRedisMongoDBCI/CD