Selected engineering work
Work
Understand what John designed or built, the evidence available for it, and the boundary between demonstrated capability and unproven outcome.
Work pages are case studies rather than product claims. They explain the problem, John’s role, the implemented boundaries, selected evidence, current status, and limitations.
Substantial selected work appears alongside clearly labelled prototypes. Related Research interprets evidence; related Architecture extracts reusable design lessons without copying implementation documentation.
Substantial selected work
These initiatives have enough implemented scope and reviewed evidence to support full case studies.
Salus
A system-design case study in turning changing decentralized-market state into bounded, explainable decisions.
Read Non-production reference implementationDigital Banking Reference Implementation
A bounded reference implementation for durable digital-asset settlement, exact-value workflows, and reconciliation.
Read Architecture contributionDeFi Leveraging
A case study in equity-backed leverage tokens, collateral-ratio control, rebalancing, and bounded solver handoffs.
Read Engineering leadership and architectureStablecoin Intents
A contribution and engineering-leadership case study in stablecoin intent routing and proof-backed settlement.
Read Parachain architecture and venture formationBuilding a Polkadot Parachain — EAVE
A bounded case study of the EAVE architecture and venture-formation work, with explicit implementation limits.
Read Protocol design and source-bounded mechanicsDeFi Protocol Engineering — Kanga
A case study of protocol design, AMM and incentive mechanics, source-bounded analysis, and controls.
Read Integration architecture and delivery leadershipEnterprise SOA
A public-safe case study of enterprise integration architecture, service orchestration, and operational reliability boundaries.
ReadPrototypes and experiments
Prototype records preserve useful engineering experiments without presenting them as active products or production services.