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Daniel A. Hernandez
Project Showcase

Prior Systems

Full-stack quantitative trading platform with real-time portfolio tracking, Black–Scholes options pricing, and 15+ technical indicators.

Prior Systems Demo

What is Prior Systems?

Prior Systems is a production-grade algorithmic trading backtesting platform that enables traders and quantitative analysts to test trading strategies against historical market data. The platform features dual-mode analysis, real-time portfolio tracking, and advanced performance analytics.

Dual-Mode Analysis

Switch between mechanical strategies (15+ technical indicators) and manual fundamental analysis with options trading

Black-Scholes Pricing

Full implementation of options pricing model with Greeks calculation (Delta, Gamma, Theta, Vega)

Real-Time Portfolio

Track multi-asset portfolios with live P&L updates, position-level analytics, and automatic price refresh

Production Deployed

Live at priorsystems.net with 10+ active users from UChicago quantitative finance organizations

Technical Highlights

  • Microservices architecture on Vercel + Railway
  • Processes 10K+ bars of data with sub-100ms rendering
  • PostgreSQL with SQLAlchemy handling 50K+ data points
  • 12 RESTful API endpoints with <200ms latency

System Architecture (You may have to zoom in to see details)

Frontend Layer

  • Next.js 16 on Vercel
  • React 18 with TypeScript
  • Chart.js visualization
  • Responsive UI/UX

Backend Layer

  • FastAPI on Railway
  • 12 RESTful endpoints
  • PostgreSQL database
  • yfinance integration

Data Flow

  • CSV ingestion
  • Price data caching
  • Real-time calculations
  • Portfolio persistence

Real-World Impact

Active Users

Platform is actively used by members from quantitative finance organizations at University of Chicago, including:

  • Maroon Capital - Student-run investment fund
  • Trott Business Leaders - Business strategy group

Use Cases

  • Algorithmic strategy development and validation
  • Historical market analysis and pattern recognition
  • Options trading education and simulation
  • Portfolio risk management testing

Production URL: priorsystems.net