Backend-focused Software Engineer with 7+ years building production systems with TypeScript, Node.js, NestJS, FastAPI, and Python across fintech, SaaS, e-commerce, and APIs serving thousands of users. I also have strong experience in AI and Robotics, working with RAG systems, AI/ML model training and fine-tuning, vector databases, ROS2 and microcontrollers. Proficient with cloud infrastructure (Linux, Nginx, Docker, Kubernetes, AWS, Azure) and focused on building systems that are reliable, scalable, and solve real problems.