A LinkedIn API developer designs, implements, and maintains application programming interfaces (APIs) that allow third-party applications to interact with LinkedIn's platform. They create endpoints for data sharing, integrate LinkedIn features into other applications, and ensure the security and efficiency of these interactions. Their work enables features like profile viewing, connection updates, or job postings on external platforms. They troubleshoot issues, optimize performance, and regularly update the API to accommodate LinkedIn's evolving functionalities. They also ensure compliance with LinkedIn's standards and guidelines. Their role is crucial in extending LinkedIn's reach and functionality beyond its own platform.