Sebastien Louis

Full Stack Developer and Financial Markets Trader

+9999.99%
Portoflio Performance

Frontend Development

React.js, Next.js, TypeScript

Backend Systems

Node.js, Python/Django, Java/Spring

FinTech Solutions

Trading Scanners, Data Analytics, Market Analysis

About Me

I'm a full-stack engineer who lives at the intersection of code and markets. On the back end I work with Java/Spring Boot and Python, storing data in PostgreSQL and Redis; on the front end I'm at home in React and Next.js. Using NumPy, Pandas, and scikit-learn, I build models that detect order-flow imbalances in NQ and ES futures. Insights I refine through my own discretionary trading.

Whether designing REST APIs or tuning real-time data pipelines, I focus on turning messy tick streams into clear, actionable tools that traders can trust. I bring both technical excellence and domain knowledge to every project.

3+ Years Experience
Big Data Processing
Algorithmic Trading
Real-time Systems

Technical Skills

  • React / Next.js
  • TypeScript
  • Python
  • Java
  • AWS / Cloud
  • Financial APIs

Featured Projects

SentiMoney

Advanced orderflow analysis tool that examines ES and NQ imbalances using Market By Order (MBO) data to identify sentiment shifts and trading opportunities.

PythonDjangoPostgreSQLMarket Data APIs

OkURL

Fast and reliable URL shortening service with analytics tracking, custom aliases, and bulk operations for efficient link management.

Next.jsTypeScriptSQLVercel
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Working On More Exciting Things

Stay tuned for additional portfolio pieces

S&P 500 Top Holdings Heatmap

Market cap determines size • Color intensity shows volatility • Updates every 3 seconds

Reach Out

Let's Connect

I'm always interested in discussing new opportunities, innovative projects, or collaborations in the fintech space. Whether you're looking to build trading systems, analytics platforms, or any financial technology solution, let's talk.

contact@sebastien.my
Philadelphia, PA