Hi, I'm Sonu, a Senior Full Stack Engineer specializing in building scalable SaaS products, AI-powered applications, and cloud-native solutions. Over the past 4+ years, I've worked with startups and international clients to deliver production-ready software across multiple domains. My expertise includes designing system architectures, developing full-stack applications, integrating AI models, automating business workflows, and deploying secure, scalable infrastructure on AWS. I work across the entire product lifecycle—from understanding business requirements and planning architecture to development, deployment, optimization, and maintenance. My core expertise includes: Full Stack Development (React, Next.js, Node.js, Express, TypeScript) Python (FastAPI, Django) AI & LLM Integrations (OpenAI, Claude, Gemini, LangChain) REST APIs & Microservices PostgreSQL, MongoDB, MySQL AWS (EC2, RDS, S3, CloudFront, Docker, Nginx) DevOps, CI/CD, Performance Optimization AI Automation, Workflow Design, and Business Process Automation I enjoy solving complex engineering challenges, reviewing system architecture, mentoring developers, and helping founders turn product ideas into scalable software. Whether you need guidance on software architecture, AI implementation, backend systems, cloud deployment, or full-stack development, I'm happy to help.