In my last ~6 years of experience, I have worked at Servify, Frappe and SixMod5; and have built services that have scaled to millions.
In SixMod5, I have helped build a Time Tracker App using NodeJs and MySQL.
In Frappe, I built a mobile framework using Flutter which is now open source and is used and developed by the community.
In Servify, I have developed critical inventory management apis using NodeJs and MySQL, developed Wallet Management and Payment integration services, implemented Redis for caching which gave ~3x performance boost to apis, implemented RabbitMQ for heavy and long running tasks asynchronously.
I love understanding CS from core level hence in my free time I research and learn about Distributed Systems, Microservices, Databases, Web fundamentals, Data Structures and Algorithms