During my past work experience, I gained expertise in HTML, CSS, JavaScript, Git, Ubuntu, NPM, REST APIs, Postman, databases, Node.js, PM2, AWS basics, Docker, logging, middleware, CloudWatch, pagination, payment gateways, OTP verification, third-party integration, caching, GCP, bug fixing, CMS integration, local server setup, AWS deployment, process management, Python, and Flask. I actively contributed to onboarding, project setup, code merging, and deployment. I designed APIs, handled errors, implemented transactions, soft delete, and improved code. I integrated various functionalities, resolved bugs, utilized Cloud services, and gained experience in Python and Flask.