I am Gowri Sankar, a Full-Stack Developer from India with 15+ years of professional experience in building scalable web and mobile applications. I specialize in end-to-end application development, working confidently across both backend and frontend technologies. My core backend expertise is in Node.js and Serverless architectures, with extensive experience in PHP, MySQL, WordPress, Laravel, and other PHP frameworks. I am the Founder and Product Owner of RigApp ([login to view URL]) — a production-grade SaaS platform built for borewell rig business owners to manage operations, finances, inventory, and field activities. RigApp is designed as a Serverless, Multi-Tenant system with a strong focus on scalability, cost efficiency, and real-world business workflows. Through RigApp, I have hands-on experience in: - Designing multi-tenant data models and tenant isolation strategies - Building serverless APIs using AWS Lambda, API Gateway, DynamoDB, and S3 - Implementing authentication, authorization, and role-based access - Managing inventory lifecycle logic (usage-based assets, consumables, and billing) - Developing mobile-first and hybrid applications for real operational use cases On the frontend and mobile side, I have developed numerous hybrid mobile and web applications using Angular, Nextjs, VueJs, React, Ionic with seamless integration to serverless backends and cloud services. I enjoy architecting and delivering solutions that are: - Cloud-native and serverless - Multi-tenant and SaaS-ready Secure, scalable, and performance-optimized Built from real product ownership experience, not just theory Thank you for taking the time to review my profile. Please feel free to contact me if you believe my skills and product experience make me a strong fit for your project or long-term engagement.