I will build a full stack web app with ai features

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sora_626
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sora_626
Qin Xinyang

About this gig

Have an app idea that needs a real front end, a backend and a few smart AI features? I build small full stack web apps (React + TypeScript + Python FastAPI) with LLM features wired in, so the AI part lives inside a working product, not a demo.


WHAT YOU GET

- React + TypeScript front end and FastAPI back end in one repo

- AI features such as summarize, classify, rewrite, generate text or chat-style Q&A

- LLM calls (OpenAI or DeepSeek) with structured output, input validation, retries and rate limiting

- Loading and error states, so a slow or failed AI call never breaks the page

- Source code, README and run instructions

- Render deploy guide (Premium)


WHY THIS APPROACH

LLM calls are slow and can be wrong. I keep API keys on the server, check model output against a schema, and show failures instead of hiding them. I have built and deployed an LLM-powered app with confidence scores, a human review screen and 300+ backend tests.


BEFORE YOU ORDER

Message me the app idea and the AI feature you want. You supply your own OpenAI or DeepSeek API key. No Docker or long-term maintenance, and no promise of AI answer accuracy.


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Get to know Qin Xinyang

Qin Xinyang

Python scraping, data automation, Chinese sites specialist

  • FromChina
  • Member sinceAug 2026
  • Avg. response time1 hour
  • Languages

    Chinese, English
Backend engineer with 2 years building data integrations on a production CRM platform at Yonyou, one of China's largest enterprise software companies. I deliver web scraping, data extraction, and API integrations — with validation and cleanup built in, so you get usable data, not a raw dump. Output as Excel, CSV, JSON, or into your database. Native Chinese speaker: I work with Chinese sites (Taobao, 1688, Weibo, Xiaohongshu) and can verify the data is actually correct — not just extracted. Fast replies, clear scope, no overpromising. Send me your URL — I'll tell you straight if it's doable.

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