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Software engineer and technical leader with more than two decades of experience spanning hands-on engineering, distributed-systems architecture, financial infrastructure, blockchain, and engineering leadership.

Over the past eighteen months, I have deliberately focused more deeply on hands-on engineering in Rust, trading systems, DeFi, and distributed infrastructure. Most recently, I designed and built Salus, a Rust/Tokio distributed trading platform spanning real-time market ingestion, graph-based evaluation, simulation, execution, replay, and strategy analysis, while also consulting on Solidity and Rust DeFi protocol infrastructure.

This recent work builds on a longer technical history including Rust/Substrate blockchain development, Solidity protocols, Go services, stablecoin infrastructure, payments, APIs, enterprise integration, architecture, and engineering leadership.

Recent scope and evidence includes:

• Designed and built Salus across a retained Ethereum topology containing 3,415 tokens, 4,552 pool components, and 2,401,108 catalog routes
• Measured retained Base workloads at 16,537 sustained and 38,462 peak route evaluations/sec; these are workload-specific route-evaluation measurements, not end-to-end trading or profitability claims
• Consulted on DeFi infrastructure spanning leverage tokens, auction-based rebalancing, lending integrations, smart contracts, and protocol execution
• Designed and implemented Kanga Finance, a Solidity-based DEX spanning AMMs, liquidity, staking, incentives, yield, and protocol administration
• Designed and built EAVE, a Rust/Substrate Polkadot parachain and DeFi platform spanning runtime, governance, staking, liquidity, APIs, and cross-chain architecture
• Led stablecoin payment infrastructure and cross-chain settlement initiatives at Eco
• Supported Harmony infrastructure spanning 300+ nodes and 600+ validators while helping scale engineering from 6 to 20 engineers

For optional deeper technical evidence, including architecture case studies, engineering decisions, distributed-systems design, protocol engineering, trading infrastructure, and implementation walkthroughs, view the Technical Portfolio.

Areas of Focus

• Trading & Market Infrastructure
• Distributed Systems & Platform Engineering
• Engineering & Technical Leadership
• Financial & Protocol Infrastructure
• AI/ML Infrastructure & Engineering

Trading & Market Infrastructure

• Designed and built Salus, a Rust/Tokio platform spanning market ingestion, graph-based route evaluation, simulation, execution, replay, and strategy analysis
• Built and measured a retained Ethereum topology containing 3,415 tokens, 4,552 pool components, and 2,401,108 catalog routes
• Engineered bounded asynchronous processing, deterministic execution boundaries, state-freshness controls, execution telemetry, and multi-chain processing
• Built solving, liquidity mapping, intent execution, and DeFi market infrastructure across Rust and Solidity

Distributed Systems & Platform Engineering

• Built Rust/Tokio systems using asynchronous pipelines, bounded queues, graph processing, state management, exact arithmetic, and deterministic execution
• Designed and built EAVE, a Rust/Substrate Polkadot parachain and distributed DeFi platform
• Supported Harmony Mainnet launch, staking infrastructure, APIs, SDKs, validator tooling, and 50+ production network upgrades
• Built large-scale enterprise integration, messaging, API, and service-oriented platforms

Engineering & Technical Leadership

• Led an 8-engineer team building stablecoin payment and financial infrastructure at Eco
• Helped scale Harmony engineering from 6 to 20 engineers while retaining close technical ownership of production infrastructure
• Led distributed engineering teams and technical partnerships as CTO at Loyyal
• Led architecture across 100+ enterprise initiatives, managed $3M+ planning portfolios, and founded a consulting firm generating approximately $800K annual revenue

Financial & Protocol Infrastructure

• Led stablecoin payment infrastructure, programmable money, cross-chain routing, settlement, wallet, and proving services at Eco
• Consulted on DeFi leverage-token infrastructure, auction-based rebalancing, lending integrations, and protocol execution
• Designed and implemented Kanga Finance, a Solidity DEX covering AMMs, liquidity, staking, incentives, yield, and protocol administration
• Built smart-contract wallets, decentralized naming, intent/solver infrastructure, and blockchain protocol systems

AI/ML Infrastructure & Engineering

• Applied AI extensively within software engineering across architecture, implementation, testing, documentation, and code review
• Developed structured AI-assisted engineering workflows while retaining deterministic engineering, validation, and human-review boundaries
• Current focus includes the engineering systems around AI/ML: data and evaluation pipelines, distributed processing, reliable backend infrastructure, and observability

Founder / Principal Engineer

Jincubator / johnwhitton.com (2018–Present)

Building distributed systems, trading infrastructure, financial infrastructure, protocol engineering, and supporting technical research, with a deliberate recent focus on deeper hands-on engineering in Rust, trading systems, DeFi, and distributed infrastructure.

Recent and representative initiatives:

• Salus (2025–Present): Designed and implemented Rust/Tokio trading and distributed-systems infrastructure spanning market-data ingestion, graph-based evaluation, simulation, execution, replay, strategy analysis, historical analysis, telemetry, observability, and execution evidence across Ethereum, Base, and Unichain
• Seamless (2025–2026): Consulted on Solidity and Rust leverage-token infrastructure, auction-based rebalancing, Morpho lending integrations, CoW Protocol execution, ERC-6909 accounting, and protocol invariants
• EAVE: Designed and built a Rust/Substrate Polkadot parachain and DeFi platform spanning validator and runtime infrastructure, governance, staking, liquidity, EVM compatibility, APIs, developer tooling, and cross-chain architecture
• Kanga Finance: Designed and implemented Solidity DEX infrastructure spanning AMMs, multi-asset liquidity, staking, incentives, yield strategies, flash loans, fee conversion, and liquidity migration
• Built supporting systems including 1wallet, 1ns, intent/solver infrastructure, execution tooling, and DeFi protocol integrations

Engineering Manager / Senior Protocol Engineer

Eco Inc. (Aug 2023–Jan 2025)

Built and led stablecoin infrastructure, programmable money systems, and cross-chain execution services for a blockchain-based financial platform.

• Led a cross-functional team of 8–10 engineers, product, and research staff across backend, DevOps, protocol, and platform initiatives
• Owned hiring, onboarding, performance reviews, career development, and delivery execution across engineering teams
• Designed and delivered cross-chain routing, execution, and settlement infrastructure across Ethereum and Layer-2 ecosystems
• Built and operated wallet, routing, proving, and payment services supporting bend.eco and the broader Eco stablecoin ecosystem
• Developed intent-based execution systems and protocol infrastructure supporting programmable money and distributed financial applications
• Operated production AWS infrastructure using Kubernetes, Docker, Terraform, MongoDB Atlas, PagerDuty, and Datadog; delivered major initiatives including Currency 1.5 and ecosystem infrastructure upgrades

Ecosystem Architect

Harmony (May 2019–May 2020)

Led developer-platform, ecosystem-engineering, and distributed-infrastructure initiatives for the Harmony Layer-1 blockchain.

• Helped scale engineering from 6 to 20 engineers through recruiting, onboarding, mentorship, and developer advocacy
• Led delivery of mainnet launch, token swap, staking infrastructure, APIs, SDKs, developer tooling, and ecosystem integrations
• Coordinated 50+ production network upgrades across infrastructure supporting 300+ nodes and 600+ validators
• Built and supported developer platforms, APIs, SDKs, monitoring systems, and operational tooling for network growth and adoption
• Managed partner integrations, developer onboarding, validator enablement, and ecosystem technical initiatives

EVP Technical Process → Chief Technology Officer

Loyyal (2016–2018)

Progressed from EVP Technical Process to CTO, leading architecture, engineering, and delivery for an enterprise blockchain payment and loyalty platform.

• Led distributed engineering teams across the United States and Africa and owned hiring, engineering processes, technical delivery, and team development
• Built enterprise transaction-processing, payment, and loyalty systems using Ethereum and Hyperledger technologies
• Designed and operated private blockchain networks, permissioned APIs, and enterprise integrations on IBM Cloud infrastructure
• Delivered Dubai Points, a blockchain-based loyalty and tourism platform supporting broad partner participation
• Managed strategic technical partnerships and delivery across IBM, Deloitte, Emirates Airlines, and CIBC

Manager, Enterprise Systems Architecture

EFI (2009–2015)

Led enterprise architecture, planning, and delivery initiatives across EFI's global technology organization.

• Managed annual planning, prioritization, resource allocation, and delivery across 100+ initiatives with annual budgets exceeding $3M and coordination across 50+ staff
• Designed and delivered EFI Business Integration Services (EBIS), a service-oriented architecture integrating SAP, Salesforce, licensing, ecommerce, logistics, manufacturing, and external partner systems
• Led architecture and delivery of strategic licensing, ecommerce, employee systems, enterprise integration, and platform-modernization initiatives
• Coordinated engineering teams, product owners, architects, and business stakeholders while mentoring technical and delivery leaders and driving Agile practices

Founder

Global Enterprise Solutions Inc. (2000–2009)

Founded and scaled a specialist SAP and enterprise-integration consultancy serving clients across Australia and the United States.

• Grew the business to approximately $800,000 annual revenue while recruiting and managing engineering consultants and operations staff
• Led enterprise architecture, SAP implementations, systems integration, and consulting engagements across finance, logistics, manufacturing, and government sectors
• Managed client delivery, budgeting, partner relationships, vendor coordination, consultant placement, and business operations
• Delivered large-scale SAP and enterprise software implementations spanning revenue management, financial systems, logistics, and operational platforms

Bachelor of Computer Science

University of Queensland, Australia