She is a Spark engineer, functional programmer, and data scientist. She has worked on financial, political, and natural language problems. In addition to coding she is passionate about teaching and working with people. She has taught computer science and math in Ghana, and is now helping educate her peers on Spark in San Fransisco. She is currently co-authoring a book with Holden Karau for O’Reilly titled High Performance Spark which is in early release. Fangjin Yang (SF Bay) @fangjin