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Optimistic Concurrency

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1 career item uses Optimistic Concurrency.

Nov 2025 - Dec 2025 SoloBank Event Sourcing and CQRS banking demo app with Streamlit UI, and Typer CLI Architecture
  • Built Event Sourcing/CQRS system with SQLite WAL event store, separated read/write models, and functional domain
  • Achieved 98% test coverage with 152 tests across 7 modules: domain, events, service, projector, CLI
  • Developed Typer CLI and Streamlit web UI with async projector (0-2000ms lag) processing 4 event types
Event SourcingCQRSDomain-Driven DesignPythonSQLiteWAL ModeTyperStreamlitAsync ProjectionOptimistic ConcurrencyPytestEventual ConsistencyIdempotent HandlersYAMLThreadingFunctional ProgrammingTesting
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