Welcome to
KortesHub
Where software engineering meets techno beats, landscape photography, and quantitative finance. Dive into study notes, side projects, live-coded music, and more.
KortesHub Terminal
A hacker-style terminal running in your browser. Explore hidden commands, play retro games, and uncover easter eggs. Type help to begin.
KortesHub Terminal v2.0 - Code. Music. Pixels. Markets.
Interactive shell by Henri Hardillier. Type help to explore.
Hidden gems await: snake, matrix, disco, fortune
Latest Study Notes
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Algorithmic Trading 101 - From Strategy to Execution
Over 70% of US equity volume is algorithmic. Learn how algorithms actually trade: strategy design, backtesting, execution algorithms like VWAP and TWAP, market making, HFT, and the pitfalls that kill real strategies.
Linear Algebra for Quants - Vectors, Matrices, and Why They Matter
Portfolios, covariance matrices, factor models, and PCA all speak the same language: linear algebra. Learn the math that underpins every serious quant strategy, with real finance examples and Python code.
Dependency Injection in C# - Stop Writing Hard-Coded Code
The pattern that makes every modern C# codebase testable, flexible, and maintainable. Learn constructor injection, service lifetimes, and the .NET DI container with real, runnable examples.
FX Markets Explained - The World's Biggest Market
Over $7 trillion trades every single day. That is more than stocks, bonds, and commodities combined. Learn how FX actually works: pairs, pips, spot vs forward, carry trade, and the central banks that move it all.
Latest Projects
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In ProgressMusicae
Next-generation platform for DJs and producers to manage music libraries, organize playlists, analyze tracks, and prepare sets. Deep integration with Spotify, Deezer, and SoundCloud for cross-platform audio intelligence.
In ProgressDeFi Trading Engine
Production-grade DeFi arbitrage bot exploiting cross-DEX price discrepancies, sandwich opportunities, and flash loan strategies on EVM chains. Real-time mempool monitoring, gas fee optimization, and MEV-aware execution with constantly evolving algorithms.
In ProgressAI Dropshipping Builder
AI-powered platform that scrapes marketplaces like AliExpress, automates sourcing, fulfillment, and product listing generation with smart supplier mapping. Launch a full-ready dropshipping website in one click with end-to-end order management.
In ProgressTalent Acquisition SaaS
AI-powered recruitment platform connected to LinkedIn and eFinancialCareers for lead extraction, automated follow-ups, and AI-driven outreach. Features live technical interviews with AI response detection and finance exercises, targeting Hong Kong banking first.
Latest Photos
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View allConway's Game of Life
A cellular automaton where cells live, die, or multiply based on simple rules. Click on the grid to place cells, then press Play to watch them evolve. Each living cell with 2-3 neighbors survives; dead cells with exactly 3 neighbors come to life.
Need a developer for your project?
Software engineer with 10+ years of experience across Paris, San Francisco, New York, Seoul, and Hong Kong. Fluent in C#, Python, and the language of financial markets. Available for freelance projects.