I am working in mobile technologies since last 4.5 years and have worked on many projects with different complexities. Projects have been done with different integrations like Barcode scanner, QR-Scanner, location on google map, navigation in map, live location tracking, mobile payments, real-time chatting, Json parsing, sqlite database, push notifications, manage large amount of data, video streaming, downloading content, uploading files, social media login, social media profile, live status updates and many more. In mobile applications, it stores data on server. We do analysis of data and display to admin person. Who can view different graphs and can modify some master data which needed to get over period of time. To make communication between mobile and server, we make APIs. Using many different technologies as per requirements we develop backend services through which data send/receive can be easy, fast and secure. To deliver a good quality project is not just about programming and testing and to manage project structure is also a part of it. QA makes project more stable and client can get good bug free system. Timely delivery of a product is also one important aspect of project. I believe in delivering good product in time.