Worked on backend infrastructure and feature development across freedomofpress/securedrop and invoke-ai/InvokeAI, focusing on reliability and developer productivity. In securedrop, improved the testing ecosystem by removing obsolete dependencies and streamlining test configurations, which reduced maintenance overhead and enhanced continuous integration stability. For InvokeAI, implemented Hugging Face blob URL normalization, enabling direct download support and expanding test coverage to ensure correctness and regression safety. Employed Python, Bash, and YAML to deliver these improvements, emphasizing maintainability and efficient testing workflows. The work prioritized robust backend development and testing practices, positioning both projects for faster feature delivery and more reliable development cycles.