Jon Jiao worked on backend development for the Northeastern-Electric-Racing/Argos repository, focusing on improving code quality and maintainability within the RuleManager component. He identified and removed an unused warning print statement, which reduced unnecessary log noise and contributed to a cleaner codebase. By prioritizing code hygiene and leveraging his skills in Rust and Git, Jon ensured that the RuleManager would be easier to maintain and safer for future modifications. Although no major bugs were addressed during this period, his targeted refactoring enhanced the stability and clarity of the project, supporting smoother ongoing development and more reliable test signals for the team.