FinTech is using technology to customize and automate the process of financial activities. Investment, lending, transfer and insurance form pillars of all financial activities. Respectively, Robo-advisors \Investment Management technology ( Investment ), Decentralized & Data-driven lending \ credit scoring technology ( lending ), Blockchain\ payment system (transfer) and InsurTech (Insurance)are the prominent FinTech areas emerging to upgrade and disrupt traditional financial intermediaries. FinTech provides customized services to clients on a large scale within the huge and complicated financial system with little or none intermediaries. As a result, there arise a lot of problems for asset allocation and risk management. The talk will present a framework for solving investment-related decision-making problems in FinTech areas. A novel integrated asset allocation model will be presented. Application in customized investment management services for sovereign wealth funds, family offices as well as personal investors will be shown. Application for insurance companies and pension plans will also be discussed. Open questions in this emerging interdisciplinary field of FinTech will be given at the end.