Worked on the CQCL/hugr repository, focusing on compiler development and backend optimization using Rust and LLVM. Delivered a feature that exposed a public getter for the current FunctionValue in EmitFuncContext, improving emitter usability and safety, and reinforced this with targeted unit testing. Enhanced code encapsulation by setting internal linkage of helper functions to Private, reducing symbol exposure. Addressed dead code elimination by aligning LLVM function linkage with hugr node visibility, enabling more effective optimization and reducing unnecessary code in binaries. The work demonstrated a methodical approach to maintainability, regression safety, and runtime efficiency through precise IR-level changes and robust testing.