Mark Greene is a Sr. Software Applications Engineer for Big Data Systems at Charles Schwab. He is a two-time presenter at the Texas Linux Festival, speaking on Unicode and FOSS Privacy and Encryption. Mark lives in the Austin-metro area with his wife and daughter. He spends his free time experimenting with amateur radio, including Software Defined Radio. You can find him on UHF/VFH bands under the callsign KG5FTU.