Confidential Client Case Study
Sovereign Cloud Architecture for a Financial-Grade Energy Certification Registry
Sovereign Cloud Architecture for a Financial-Grade Energy Certification Registry
Financial Ledger
Delivered UTXO-style, double-entry PostgreSQL ledger with deterministic concurrency behavior, DB-enforced invariants, and reconciliation gates.
Sovereign Cloud Architecture
Had production plan approved that solved operational risks by establishing client-owned enterprise-grade AWS infrastructure.
Historical Data Migration
Developed a phased historical data migration plan to successfully integrate legacy records into the new system prior to production cutover.
Summary
I led the technical architecture for a methane registry platform that required financial-ledger integrity, strict auditability, and production-grade security controls.
I delivered a UTXO-style, double-entry PostgreSQL ledger with deterministic concurrency behavior, DB-enforced invariants, and reconciliation gates. In parallel, I designed and presented a Sovereign Cloud Architecture memo that established a path towards client-owned AWS identity, storage, compute, and security operations.
The production design direction was approved.
Architectural Scope & Deliverables
- Financial-grade ledger architecture and implementation in PostgreSQL.
- Deterministic write-path contracts for authoritative ledger functions.
- Concurrency hardening and deadlock-resistant lock ordering.
- Security boundary enforcement at function privilege and role-grant level.
- Sovereign AWS target architecture across identity, storage, compute, data, and observability.
- Migration strategy, cutover controls, rollback criteria, and risk register for production adoption.
