A Kindle SDK developer designs, develops, and implements software applications for Amazon's Kindle devices. They use the Kindle Software Development Kit (SDK) to create interactive eBooks, develop games, or add new features to Kindle devices. Their responsibilities include writing code, debugging, and testing to ensure optimal performance and user experience. They also collaborate with other developers, graphic designers, and project managers to meet project objectives. Moreover, they stay updated with the latest technology trends for continuous improvement. They need proficiency in programming languages like Java or C++, understanding of APIs, and knowledge of the Kindle development environment.