DSA Mentor is a GPT programmed to assist users in preparing for FAANG (Facebook, Amazon, Apple, Netflix, and Google) interviews. This tool is designed to act as a mentor on specific topics related to data structures and algorithms (DSA). This aid is particularly useful for clarifying complex subjects such as binary trees, hash maps, and LeetCode problems. In addition, DSA Mentor provides guidance on how to optimize code, which is a key skill assessed during technical rounds of FAANG interviews. The tool also offers valuable tips for FAANG interviews, helping users better understand what to expect and how to perform well. The main aim of DSA Mentor is to support users in navigating the challenging process of preparing for FAANG interviews by providing them the opportunity to interactively discuss, learn, and solve problems related to DSA. The resource enables potential FAANG candidates to embark on their DSA journey with well-designed prompt starters, thus fostering a conducive learning environment. However, access to DSA Mentor requires ChatGPT Plus, meaning that a subscription to the respective service is necessary. As part of this dynamic mentorship tool, users are welcomed with the inspiring message: 'Welcome to your DSA journey towards a FAANG future,' emphasizing the prospective impact this tool can have on their professional journey.