Sanju Sivalingam is a product-focused founder and CEO with 7 years of hands-on experience designing and engineering user-centered mobile and web products from Chennai. He leads THISUX and recently took on a CEO role at Dun, combining UX design sensibilities with Android engineering to ship delightful, revenue-minded MVPs for startups and SMBs. A Google Developer Expert for Android and active open-source contributor, his MotionToast library and Android projects showcase a keen eye for UI polish, accessibility (dark mode) and modern Kotlin architecture. Sanju bridges design and code—what he calls User Experience Engineering—so teams move quickly from prototypes to production without losing craft. He’s equally comfortable refactoring complex Android flows as he is advising product strategy and go-to-market tradeoffs. Outside client work he mentors developers, emphasizing pragmatic engineering practices that improve UX and maintainability.
7 years of coding experience
4 years of employment as a software developer
Batchelor of Technology, Computer Engineering, Batchelor of Technology, Computer Engineering at BSA Crescent Institute of Science and Technology
📊 A Minimal Expense Tracker App built to demonstrate the use of modern android architecture component with MVVM Architecture
Role in this project:
Mobile Developer (Android)
Contributions:1 release, 20 reviews, 167 commits in 11 months
Contributions summary:Sanju was primarily involved in developing the Android application Expenso, focusing on implementing core functionalities. Their contributions included setting up the data store, repository, and Room database, along with defining the data model and DAO for transaction management. Further development included adding ViewState and TransactionViewModel and implementing UI elements like navigation, filter states, and menu interactions. The user also worked on share functionalities, error handling, and completing various UI elements.
🌈 A Beautiful Motion Toast Library for Kotlin Android
Role in this project:
Mobile Developer (Android)
Contributions:11 releases, 6 reviews, 54 commits in 1 year 10 months
Contributions summary:Sanju primarily contributed to the development of the `motiontoast` Android library. They implemented new features, including a "No Internet" toast, and enhanced existing toast types. Code changes involved modifying the toast's appearance, animations, and duration, and added dark mode support, showcasing a focus on UI/UX improvements. These updates and improvements were integrated and organized within the Kotlin codebase.
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