I am a senior developer and team leader working for the finance industry, or more specifically, credit card business. For the last 5 years, I had been working on SPDB & ABC & CMBC, designing and developing multiple credit card related projects and products. Although at work I mainly use the Java, I also keep an eye on other great and graceful tools or creations. Recently I am interested in machine learning, looking forward to getting a position about data science or big data fields.