Hi, I'm Arman Singh, a Senior Full Stack Engineer with 4+ years of experience building and scaling web applications across healthcare, enterprise, and AI-driven products. My expertise includes Node.js, React, Next.js, TypeScript, MySQL, PostgreSQL, MongoDB, AWS, system design, and REST API development. Throughout my career, I've worked on backend architecture, database optimization, authentication systems, performance improvements, and AI-powered solutions. I enjoy helping developers prepare for technical interviews, strengthen their backend and full-stack development skills, improve their resumes, and gain confidence in system design discussions. Whether you're preparing for a Full Stack Developer role, looking for feedback on your resume, or wanting to improve your understanding of backend engineering, I'd be happy to help.