I'm Rishav Kumar, a Software Development Engineer at Amazon, based in Bangalore. I graduated with a B.Tech in Computer Science from IIIT Ranchi. I have experience working on cloud infrastructure, building large-scale production systems, developing security features, and contributing to open- source projects. I've also worked on subscription services, system design, and have hands-on experience across the full software development lifecycle. Additionally, I've conducted multiple interviews, giving me insight into what top tech companies look for in candidates. My tech stack includes Python, Java, JavaScript, C++, React, and a wide range of AWS services. I'm here to help with SDE interview prep, DSA strategy, system design, career guidance, cloud development, and getting started with open-source contributions.