A Grokking developer is a software engineer who fully and intuitively understands the systems they are working with. They are proficient in coding languages and development tools, and are able to design, implement, and test software applications. They "grok", or deeply comprehend, the complexities of software development, including troubleshooting and problem-solving, understanding data structures and algorithms, and mastering new technologies quickly. They also work collaboratively with other developers and stakeholders, demonstrating strong communication skills. They may also participate in code reviews, provide mentorship to junior developers, and contribute to the overall software development strategy.