👋 Hey, I’m Joaquín Béjar

I build open-source, ultra-efficient trading infrastructure in Rust, with C++/Python bindings where you need raw speed.
My stuff is meant for quants, trading engineers, and indie traders who want hedge-fund-grade tooling without the hedge-fund price tag.

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💡 Why sponsor?

Support lets me spend real dev time on performance, correctness, docs, & solid releases instead of just maintaining repos.

💎 Benefit What you get
Early builds Alpha/Beta releases before anyone else
Influence roadmap Your issues/PRs prioritized
Deep dives Design notes, perf benchmarks & latency posts
Private Discord AMA, workshop sessions, trading memes

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🚀 Core Projects (with status & highlights)

Here’s a snapshot of the repos that define my work right now — all battle-testable building blocks for quant/trading infra: 

Repo What it is Status
OptionStratLib v0.14.1 – comprehensive Rust options library Full-stack options pricing & strategy engine (25+ strategies, greeks, simulations) ⭐ 162 stars
OrderBook‑rs – high‑perf limit order book core Thread-safe LoB matching engine optimized for low latency ⭐ 275 stars
PriceLevel Lock-free price level primitive for matching engines ⭐ 33 stars
deribit-fix Reusable FIX client framework for Deribit ⭐ 13 stars
market-maker-rs Avellaneda-Stoikov market-making strategies library ⭐ 39 stars
quant-trading-system Rust CLOB + AMM system combining order book & AMM logic ⭐ 17 stars
DXlink Rust realtime feed client for tastytrade’s DXLink ⭐ 9 stars
tradier Rust wrapper for Tradier REST/WebSocket ⭐ 7 stars
OptionChain-Simulator REST sim for option chains & analytics pipelines ⭐ 9 stars

These repos form a stack from pricing & risk modelling to order execution infrastructure — all reusable for production systems or research labs.

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📌 What your support enables

With sponsors, I can:
• Ship production-ready releases (semver, CI/CD, docs)
• Add async/await support + full benchmarks
• Build complete backtest & live test harnesses
• Deep documentation & tutorial series for each core library
• Maintain quality with tests, perf tracking, and stable APIs

Basically: make this stack useful beyond just a GitHub readme.

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💼 Consulting & Custom Builds

Need something bespoke?
• Fast matching engines + pricing frameworks
• Custom options analytics libraries
• Performance audits (Rust/C++/Python)
• Integration into quant stacks / research platforms

Sponsors get priority access & queue bump on paid work.