Author name: Admin

⏱ 7 min read Algorithmic Trading System Architecture: How Trading Platforms Are Actually Built For SWE candidates targeting low-latency trading firms (HRT, Jump Trading, Read article

⏱ 7 min read Time-Series Databases for Quant: KDB, ClickHouse, InfluxDB, and What Quant Firms Actually Use Quant firms generate and consume staggering volumes Read article

⏱ 7 min read Risk Management and VaR for Quant Interviews: Tail Risk, Stress Testing, and Beyond Variance Risk management is the unglamorous-but-essential half Read article

⏱ 7 min read Order-Matching Engine Internals: How Exchanges Match Trades The order-matching engine is the heart of every electronic exchange. It’s the component Read article

⏱ 6 min read Python for Quants: What Quant Firms Actually Test in Python Interviews Python is the dominant language in quantitative research and Read article

⏱ 6 min read C++ for Quants: What HFT and Low-Latency Firms Test in C++ Interviews C++ is the dominant language for low-latency trading Read article

⏱ 6 min read Fermi Estimation for Quant Interviews: How Many Piano Tuners, Gas Stations, and Trades Per Day? Fermi estimation — the art Read article

⏱ 7 min read Risk-Neutral Measure for Quant Interviews: Pricing, Girsanov, and Why μ Disappears The risk-neutral measure is one of the most subtle Read article

⏱ 7 min read Execution and Slippage for Quant Interviews: Market Impact, Algorithms, and the Cost of Trading Execution is where strategy meets reality. Read article

⏱ 7 min read Order Book Dynamics for Quant Interviews: Microstructure, Queue Position, and Information Flow Order book dynamics is the study of how Read article