Sean Lange portrait

Sean

/

Lange

Full-stack Software Engineer

About

Using complex cloud infrastructure to ship real products.

I build production-ready web applications end-to-end, from UI/UX to cloud infrastructure. Most of my work is TypeScript-first (Next.js/Node), backed by AWS services for deployment, scaling, and automation; allowing the product to ship fast and stay reliable.

Core Stack

TypeScriptReactNext.jsNode.jstRPC

Web Development

Express.jsAuth.jsWebSocketsTailwind CSS

Infrastructure & Data

AWSDockerCI/CDPostgreSQLRedisMongoDB

Highlighted Projects

My best work - so far.

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Kalorie preview

Kalorie

Kalshi trading system for earnings-mention markets. The model has a better Brier score than the live market inside a 95% confidence interval.

  • Python
  • AI
  • TypeScript
  • Next.js
  • PostgreSQL
  • AI
  • 2026
Bitflip preview

Bitflip

Space weather and radiation forecasting for proactive bit-flip mitigation. First place and $1500 at the Groundswell Startups Space Coast Initiative hackathon.

  • Python
  • AI
  • Next.js
  • React
  • Tailwind CSS
  • Hackathon win
  • AI
  • 2026
Multyx.io preview

Multyx.io

Multiplayer game dev platform with typed AST editor, ECS hosting on AWS, and Step Functions provisioning. Lets beginners ship real-time games without networking expertise.

  • TypeScript
  • Next.js
  • AWS
  • Docker
  • PostgreSQL
  • Redis
  • WebSockets
  • Tailwind CSS
  • Pre-AI
  • 2026