Worked on the ARM-software/golang-utils repository to deliver a configurable split-mode parsing feature for list-of-pairs data, enabling users to choose between splitting at the first occurrence or all occurrences of a separator. Applied the Functional Options pattern in Go to enhance parsing configuration and improve API ergonomics, resulting in more flexible and maintainable code. Modernized existing code and expanded unit test coverage by updating core parsing logic and associated tests, which stabilized continuous integration and reduced lint-related issues. This work provided more robust data parsing workflows, allowing downstream consumers to control splitting behavior with minimal code changes and improved reliability.