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Hello! My name is

SiCong
Fu

AI Product Engineer · Idea → Production

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Hi, I'm SiCong Fu.
I build AI products that survive contact with real users.

My first production AI system looked for koalas in photos submitted by the public. Since then, I've been building AI products from early product decisions through system design, development and production.

TypeScript
Python
Next.js
FastAPI
ASP.NET Core
PostgreSQL
Docker
AWS
ChatGPT
Claude

Selected Work

Three products taken from a first conversation to real users.

AI Catalyst

AI Catalyst

A founder validation product I helped take from early product discussions through AI workflow design, full-stack development and production.

Product FramingLLM SystemsMCPProduction
Rally

Rally

An investor intelligence and matching system combining structured enrichment, deterministic filtering and AI-assisted ranking.

System DesignData PipelineRankingEvidence
Koala Be Where

Koala Be Where

My first end-to-end AI product, using computer vision to locate koalas in messy citizen-science photos.

Computer VisionModel TrainingAI Integration

How I Work

01— UNDERSTAND

Define the real problem.

Business goals · users · constraints

02— DESIGN

Decide what AI should handle.

Workflow · boundaries · architecture

03— BUILD

Turn the design into a real product.

AI · product · data

04— OPERATE

Make it survive production.

Reliability · feedback · cost

Working on something messy?That's usually where I like to start.

Let's talk