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Xuan-Huy CaoXC

Xuan-Huy Cao

Senior Rust Engineer - Backend & Systems

€650/day
Paris, FR
3-7 years

Average response time: 1 hour

About Xuan-Huy

Senior Rust engineer with 6 years building low-latency, backend systems from the ground up. I help teams design and ship performance-critical infrastructure: backend services, real-time data pipelines, distributed systems, and trading infrastructure that has to be fast, correct, and reliable under load.

I work across the full backend stack. As founding engineer at a trading firm, I built market data ingestion services, order-execution gateways, order book servers, and a DSL compiler turning natural-language strategies into optimized Rust.

Before that I built embedded and signal-processing systems in C and C++, and a digital-twin simulation engine for large electrical grids.

Rust is my primary language, but I'm pragmatic. C++, Python, or TypeScript, whatever the problem needs. I have strong mathematical foundations (silver medalist at the national Mathematics Olympiad), which shows up in the work: graph theory, formal verification, and provably correct system design.
  • English

    Native or bilingual

  • French

    Fluent

  • Vietnamese

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Structure
    Founding Engineer (Freelance)
    TECH
    July 2024 - Today (2 years)
    Paris, France
    - Founding engineer and first hire alongside the CTO (ex-Jump Trading); built the firm's low-latency trading infrastructure from scratch in Rust
    - Built market data ingestion services and order-execution gateways for Hyperliquid and Drift (Solana perpetuals DEX)
    - Built the order book server and strategy engine for high-frequency execution
    - Designed the mathematical model translating natural-language strategies into a DAG-based DSL and proved its correctness; engineered the compiler and code generator emitting optimized Rust strategy templates
    Rust Trading Blockchain Back-End development AI Agent
  • Alpi (Schneider Electric)
    Systems Engineer
    ENERGY AND UTILITIES
    September 2023 - September 2024 (1 year)
    Paris, France
    Designing and implementing complex graph algorithms to simulate and analyse large-scale electrical networks. Worked in C++ with a strong graph-theory foundation.
    C++ Back-End development System engineering
  • Echosens
    C++ Developer
    June 2022 - September 2023 (1 year and 3 months)
    Paris, France
    Developed the examination engine for non-invasive liver-health devices, extracting quantitative metrics from ultrasound scan results. Worked in C++ on the signal-processing pipeline that turned raw scan data into reliable diagnostic measurements.
    C++ Signal Processing Embedded Systems SQL

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Education

  • Software
    INSA Lyon
    2020
    Software

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