Poovarasan Sandhanam

Developed React Native mobile apps using TypeScript and Firebase. Integrated CodePush for OTA updates; handled App Store and Play Store deployments. Implemented AWS Amplify and S3 for backend services and media file storage. Improved app performance by 25% using FlatList optimization and lazy loading. Set up CI/CD pipelines using GitHub Actions. Worked in Agile teams to deliver features with consistent sprint velocity.

Architected and delivered scalable, modular cross-platform mobile applications using React Native and TypeScript. Led end-to-end development including frontend, backend services, cloud infrastructure, and integrations. In fintech domain (Chola Consumer Loan), designed and implemented end-to-end digital lending workflows including KYC, eligibility checks, and EMI calculation. Built secure authentication systems (OTP-based login, session handling, secure storage) and integrated REST APIs for loan processing, customer data and third-party verification services. Optimised performance and reduced application load time by 35%. Implemented secure native module bridges and integrated Razorpay and Firebase. Established GitHub Actions-based CI/CD pipelines, automated testing, and monitoring tools, and mentored junior developers.

Built cross-platform apps with Firebase Auth, Firestore, and custom UI components. Created RESTful APIs using Node.js and Express.js. Wrote unit tests with Jest; contributed to CI pipelines and Agile ceremonies.