1) The document discusses the author's role in several projects related to developing mobile applications and infrastructure for financial services. 2) The author helped develop a mobile app for investors to check portfolios and trade from Android and iOS devices, implemented a mobile bond trading system using USSD codes, and helped formulate a cyber security framework. 3) The author also assisted with upgrading the Central Depository System from a two-tier to three-tier system which involved acquiring a new system to store investor details, biometric data, and shareholdings information.