Quant Finance

Coding Online Assessment (OA) Patterns at Citadel, HRT, and Jane Street: 2026 Prep Playbook The coding online assessment is the […]

Wall Street Internship Recruiting Timeline 2026: When to Apply, How the Funnel Actually Works Wall Street internship recruiting has the

HFT vs Hedge Fund vs Bank Tech: How to Choose by Career Stage in 2026 The compensation gap between HFT

Garden Leave and Non-Competes on Wall Street: How to Time Your Exit in 2026 Garden leave and non-compete clauses are

Mental Math Drills for Trading Interviews: 2026 Guide with Worked Examples Mental math is the most common gating round at

Deferred Compensation on Wall Street: How Multi-Year Bonus Structures Actually Work in 2026 Deferred compensation is the single largest gap

Algorithmic Trading System Architecture: How Trading Platforms Are Actually Built For SWE candidates targeting low-latency trading firms (HRT, Jump Trading,

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

Time-Series Databases for Quant: KDB, ClickHouse, InfluxDB, and What Quant Firms Actually Use Quant firms generate and consume staggering volumes

Risk Management and VaR for Quant Interviews: Tail Risk, Stress Testing, and Beyond Variance Risk management is the unglamorous-but-essential half

Fermi Estimation for Quant Interviews: How Many Piano Tuners, Gas Stations, and Trades Per Day? Fermi estimation — the art

Python for Quants: What Quant Firms Actually Test in Python Interviews Python is the dominant language in quantitative research and

C++ for Quants: What HFT and Low-Latency Firms Test in C++ Interviews C++ is the dominant language for low-latency trading

Execution and Slippage for Quant Interviews: Market Impact, Algorithms, and the Cost of Trading Execution is where strategy meets reality.

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