Open to opportunities

William Baker

@williambaker

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Senior fintech and trading systems architect with quantitative expertise.

United States

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What I'm looking for

I seek hands-on senior roles building scalable trading, payments, or DeFi platforms where I can lead architecture, mentor teams, and drive production ML and low-latency trading systems.

I am a FinTech and quantitative engineering professional with over a decade of experience designing, building, and operating trading, payments, and financial infrastructure platforms across traditional markets, crypto, and DeFi.

I have hands-on expertise in system architecture, scalable microservices, trading protocol integration (including FIX and MetaTrader), and production ML/AI model deployment. I have built DEX/CEX tools, yield-farming and staking systems, algo-trading platforms, and high-performance trading servers that handle massive chart and request volumes.

I lead teams and advise hedge funds, startups, and crypto firms on trading, payments, and risk systems, combining practical trading strategy experience (arbitrage, market making, pair trading) with strong software engineering across Python, C++/C#, Java, Go, Rust, and modern cloud/data stacks.

Experience

Work history, roles, and key accomplishments

Current

Blockchain & AI Expert

Current

Self-Employed

Jan 2022 - Present (4 years 1 month)

Designed and delivered DeFi, DEX/CEX, and AI-driven products including yield-farming, staking, automated compounding, trading automation and chatbot integrations; advised hedge funds and crypto startups on trading, payments, and risk systems.

Solidity Rust Avalanche Smart Contracts Python AI ML NLP System Architecture

Software Engineer & Team Lead

Global Financial Consultants Pte. Ltd.

Jan 2019 - Jan 2022 (3 years)

Led a team to build scalable web and mobile fintech platforms including a MetaTrader-integrated forex trading platform, algo-trading/no-code backtesting tools, and copy-trading systems with real-time replication and risk management.

React PostgreSQL Real Time Systems Team Leadership

Software Engineer & Project Manager

Shanghai Lingang Holdings Corporation Limited

Jan 2014 - Jan 2019 (5 years)

Architected high-speed data acquisition and trading systems, developed desktop trading tools for FX/futures/stocks, and implemented arbitrage, pair-trading, and market-making strategies to improve performance and profitability.

C++Signal Processing Trading strategies High Speed Data Acquisition Performance Optimization