I will do an expert code review or architecture audit of your app

S
stephenbae
S
stephenbae
Stephen
do an expert code review or architecture audit of your app
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do an expert code review or architecture audit of your app
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do an expert code review or architecture audit of your appdo an expert code review or architecture audit of your appdo an expert code review or architecture audit of your appdo an expert code review or architecture audit of your app

About this gig

A senior set of eyes that has actually shipped at scale. I review code and architecture for teams that need an honest, prioritized read: what is broken, what is risky, and what to fix first.


I am a Staff/Principal engineer with 12+ years shipping production software. I led platform engineering for over $5B/year in AI lending decisions, and I review code daily across my own products on a live stack (Fly, Vercel, Neon). I have built and audited systems in Python, TypeScript, Node, React, and more.


What you get:

- A clear, prioritized report: bugs, security issues, performance bottlenecks, and code-quality problems

- Architecture review: data flow, scaling risks, failure modes, and what to change before they bite

- Concrete fixes ranked by impact, not a wall of nitpicks

- Optional scaling roadmap and a short call to walk through it


Good for founders and teams who want a second opinion before shipping, scaling, or hiring. I focus on what actually matters for your stage.


No unlimited revisions, which keeps scope clean. Message me before ordering so I can scope it to your codebase.

  • Programming language

    • Go
    • JavaScript
    • PHP
    • Python
    • Rust
    • Swift
    • TypeScript
    • HTML & CSS
    • Pine Script

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

    • Bootstrap
    • Flutter
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Django
    • Express.js
    • FastAPI
    • Flask
    • Next.js

Get to know Stephen

Stephen

Senior Full Stack Engineer Payments, Scrapers, APIs

  • FromUnited States
  • Member sinceApr 2015
  • Avg. response time7 hours

  • Languages

    English
Hi, I'm Stephen, a full-stack engineer with 12+ years shipping production software. I build and fix payments, scrapers, API integrations, deploy pipelines and AI features, all running in production. Most recently, I led an 8-person team at handling over $5B per year in lending decisions, and I founded an AI earnings platform covering 6,200+ stocks. I work in Stripe, web scraping (Playwright, anti-bot), API and webhook integrations, AI (OpenAI and Claude), and full-stack TypeScript, Python, React, NextJS, Node and FastAPI. I name the exact fix, give a turnaround, and prove it works.

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