Worked on the bigcommerce/b2b-buyer-portal repository to improve the reliability of product search functionality by addressing issues with special character handling in GraphQL queries. Focused on replacing string interpolation with GraphQL variables in TypeScript to prevent 400 Bad Request errors, particularly when product names included double quotes. Scoped the solution to a single file, ensuring maintainability and consistency with existing variable-based query patterns. Updated related storefront tests and the MSW GraphQL handler to reflect the new approach, validating various search scenarios. Demonstrated strong skills in API development, GraphQL, and testing while reducing customer-facing errors in the product search experience.