Pytest career experience

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

Nov 2024 - Dec 2024 NetFS Multi-client network file system Software

Built TCP socket server with JSON protocol implementing 18 Linux commands, reader-writer locks, and threaded architecture
Implemented concurrent file access with reader-writer locks enabling multiple readers or single exclusive writer per path
Achieved 83% test coverage across 339 tests (314 unit, 25 integration) with pathlib security and sorted lock acquisition

Oct 2024 - Nov 2024 AkujobiP1Shell POSIX-compliant command-line shell Software

Built fork/exec/wait pattern with POSIX system calls for external commands, signal handling, and graceful error recovery
Designed modular architecture across 5 components (1,091 lines): REPL, YAML config manager, parser, builtins, and executor
Achieved 89% test coverage with 229 unit tests plus 4 bash integration tests and 4-level YAML config merging system