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Achievement: Pull Sharkx2Achievement: YOLOAchievement: Quickdraw

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tccao/README.md

Hi, I'm Tinh Cao 👋

I'm a full-stack software engineer building secure cloud applications and practical AI automation systems. My background spans software development, data science, cloud analytics, and quantitative finance, so I care about correctness, evaluation, and systems that work beyond the demo.

  • Current focus: Backend engineering, system design, testing strategy, and clean architecture
  • Recent work: Multi-LLM orchestration at Wayfair and OCR + RAG document intelligence at Outamation
  • Core stack: TypeScript, React, Python, FastAPI, PostgreSQL, Docker, AWS, and GitHub Actions
  • Open to: Full-stack and backend software engineering roles, including AI-enabled products
  • Contact: LinkedIn

Featured Projects

CloudSim · Live demo

A production-oriented cloud infrastructure management simulator with registration and login, expiring JWT authentication, server-enforced Admin/DevOps/User RBAC, instance lifecycle controls, monitoring, cost visibility, and PostgreSQL persistence.

Stack: React, TypeScript, FastAPI, SQLAlchemy, PostgreSQL, Docker, AWS EC2, CloudWatch, Cost Explorer, Vercel, Render, pytest, and GitHub Actions.

4DOTS Landing Page · Live demo

A secure, dependency-free lead-capture workflow delivered for a client using Cloudflare Pages and Google Apps Script. It includes Turnstile bot protection, server-side validation, private Google Sheet writes, formula-injection defense, security headers, automated contract tests, and CI.

Stack: JavaScript, Python, Cloudflare Pages, Google Apps Script, Google Sheets, pytest, and GitHub Actions.

Stock Portfolio Optimization

A quantitative-finance project applying CAPM-based analysis and log returns to portfolio allocation across S&P 600 and XLK assets.

Stack: R, statistical modeling, and portfolio analytics.

Technical Toolkit

  • Languages: TypeScript, JavaScript, Python, SQL, Java, R, HTML/CSS
  • Frontend: React, Vite, responsive web interfaces
  • Backend and data: FastAPI, SQLAlchemy, PostgreSQL, REST APIs, authentication, RBAC
  • Cloud and delivery: AWS, Azure, Docker, Vercel, Render, Cloudflare Pages, GitHub Actions
  • AI and automation: n8n, LlamaIndex, RAG, OCR, Hugging Face, Tesseract, PaddleOCR, PyMuPDF
  • Quality and security: pytest, smoke tests, contract testing, input validation, security headers, injection defense

Let's connect on LinkedIn.

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  1. CloudSim CloudSim Public

    Production-oriented cloud infrastructure simulator with React, FastAPI, PostgreSQL, RBAC, AWS integrations, testing, and CI.

    TypeScript

  2. 4DOTS 4DOTS Public

    Forked from 4DOTS-hub/4DOTS

    Secure, tested lead-capture landing page on Cloudflare Pages + Apps Script for Vietnam client

    JavaScript

  3. StockPortfolioOptimizationSP600_XLKinR StockPortfolioOptimizationSP600_XLKinR Public

    Educational S&P 600 portfolio analysis in R using CAPM screening, XLK benchmarking, and seeded random portfolio search.

    R