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Denzell Twerdohlib.dev

Aspiring quant developer • TypeScript • Systems-minded

Building reliable software for research and trading.

I’m focusing on the fundamentals that matter in trading environments: correctness, latency-aware design, reproducibility, and clear communication of assumptions.

C++ (learning)TypeScriptPython (for research)Data pipelinesBacktestingMarket microstructure

Featured work

Event-Driven Backtest Engine

A shipped, correctness-first event-driven backtesting engine in TypeScript: deterministic replay, explicit execution assumptions, testable boundaries.

Shipped
TypeScriptBacktestingArchitecture

Market Microstructure Notebook

Notes + small experiments: spreads, order book dynamics, slippage, and common execution metrics.

WIP
MicrostructureExecutionResearch

What I optimize for

  • Correctness and tests
  • Clear interfaces & invariants
  • Performance where it matters

What I’m learning

  • Order book & execution models
  • Time series + statistical basics
  • C++ for low-latency systems

What I’m building next

  • A tiny backtesting engine
  • Vol surface demo
  • Research notes in public