I’m Karan Kumar, a passionate Software Engineer with 4+ years of experience in backend development using Java, Spring Boot, and microservices. I’ve mentored 500+ students and professionals in mastering DSA, cracking system design, and acing interviews at top tech companies. I'm also an author of 1 published book, 8 research papers in top journals, and a patent holder. Whether you're a beginner or prepping for FAANG, I can guide you step by step with mock interviews, resume reviews, and hands-on sessions. Let’s level up your tech journey together!