Resume Downloads: Leadership · Trading & DeFi · Financial Infrastructure · Platform & Distributed Systems

Executive Summary

Engineering leader, architect, and hands-on systems builder specializing in trading systems, financial infrastructure, DeFi protocol engineering, distributed systems, and AI engineering.

Over the past 20+ years I have designed, built, led, and delivered production systems across enterprise integration, payments, stablecoin infrastructure, blockchain networks, execution systems, and financial platforms.

Recent scope and outcomes:

• Built Rust-based trading infrastructure evaluating 1,100+ routes/sec
• Built route graphs spanning 17,000+ assets, 8,000+ liquidity pools, and 2.3M+ routes
• Led stablecoin payment infrastructure and cross-chain settlement work
• Supported distributed blockchain networks spanning 300+ nodes and 600+ validators
• Scaled engineering teams from early-stage startup through enterprise delivery environments

For a complete overview of John's experience, leadership, systems, and architecture work, view the Portfolio Presentation.

Engineering Leadership

• Scaled Harmony engineering organization from 6 to 20 engineers
• Led cross-functional teams of up to 10 engineers, product, and research staff
• Managed annual planning portfolio exceeding $3M across 100+ initiatives
• Founded and scaled Global Enterprise Solutions to approximately $800k annual revenue

Trading Systems

• Built Rust-based execution infrastructure evaluating 1,100+ routes/sec
• Built route graphs spanning 17,000+ assets, 8,000+ liquidity pools, and 2.3M+ routes
• Designed liquidity mapping, route evaluation, simulation, pricing, execution, and settlement systems
• Developed historical replay and strategy analytics platforms

Financial Infrastructure

• Led stablecoin payment infrastructure and programmable money work at Eco
• Built cross-chain routing and settlement infrastructure
• Delivered enterprise financial and loyalty infrastructure for clients including IBM, Deloitte, Emirates Airlines, and CIBC

Distributed Systems

• Built a Rust-based Polkadot parachain and distributed application platform
• Supported Harmony Mainnet launch, staking infrastructure, APIs, SDKs, and 50+ production upgrades
• Supported infrastructure spanning 300+ nodes and 600+ validators
• Built large-scale enterprise integration, messaging, and API platforms

DeFi Protocol Engineering

• Designed and implemented solver, liquidity, and route evaluation systems
• Built and researched intent-based execution systems
• Designed governance, tokenomics, validator, and protocol architecture for EAVE

AI Engineering

• Applied AI-assisted development workflows to engineering delivery, documentation, and architecture work
• Explored agent workflows for research tooling, system design, and developer productivity
• Used AI tooling to accelerate refactoring, architecture evaluation, and knowledge systems

Principal Engineer / Founder

Independent Research & Development (2018-Present)

Research, protocol development, fundraising, and consulting across trading systems, financial infrastructure, DeFi protocol engineering, distributed systems, and AI engineering.

Primary initiatives:

• Solver
• Salus
• EAVE
• Jincubator research and prototyping

Engineering Manager / Senior Protocol Engineer

Eco (2023-2025)

• Led cross-functional engineering team of 8-10 staff
• Built stablecoin infrastructure and programmable money systems
• Delivered cross-chain routing and settlement infrastructure
• Managed hiring, onboarding, performance reviews, and delivery execution

Ecosystem Architect

Harmony (2019-2020)

• Scaled engineering organization from 6 to 20 engineers
• Delivered mainnet launch, staking infrastructure, APIs, and SDKs
• Coordinated 50+ production upgrades
• Supported 300+ nodes and 600+ validators
• Supported developer ecosystem growth and validator onboarding

Chief Technology Officer

Loyyal (2016-2018)

• Led engineering teams across the United States and Africa
• Built enterprise blockchain and loyalty infrastructure
• Delivered solutions for IBM, Deloitte, Emirates Airlines, and CIBC
• Managed architecture, engineering delivery, and customer implementation work

Enterprise Architect / Founder / Engineering Manager

EFI, Autodesk, Global Enterprise Solutions (1986-2016)

• Managed $3M annual planning portfolio
• Coordinated delivery across 100+ initiatives and 50+ staff
• Built large-scale SOA and enterprise integration platforms
• Founded and scaled Global Enterprise Solutions to approximately $800k annual revenue

Bachelor of Computer Science
University of Queensland