Zachary Becker contributed targeted engineering work to the cosmos-sdk and tokio repositories over a two-month period, focusing on codebase maintainability and asynchronous programming patterns. In cosmos-sdk, he removed an unused ORM module along with related encoding, key management, and testing utilities, reducing dead code and simplifying the build system for more predictable releases. For tokio, he refactored example workflows to use Rust’s select! macro instead of join!, clarifying concurrent task handling and aligning with best practices in asynchronous programming. His work demonstrated depth in repository management, Rust, and Go, emphasizing code clarity and maintainability rather than broad feature delivery.