William Longstreth is a professional in their field. He is proficient in English. Colleagues describe him as "I was partially responsible for managing William's internship project at OneWest Bank during the summer of 2013. William's project involved de novo development of interest rate curve construction algorithms for use by the Forecasting and Modeling Group, primarily for the LIBOR and treasury markets. I was very impressed with William's ability to operate independently, using and building on his expertise with the Bloomberg application programming interface to construct models for spot and forward rate curves. William built some very complex models in Excel for the bootstrapping of curves from relevant input securities as well as curve-smoothing use natural cubic spline methodology. These models have laid the foundation for important future work within the group. I was also impressed with William's implementation in C# 4.0 of the algorithms required to predict payment, settlement, and rate-reset dates for interest rate swaps. These algorithms have already found significant usage for our group. William managed to accomplish all of this in only a ten-week internship program--almost entirely on his own. I recommend William to any employer as a strong mathematical mind with demonstrable technical skills in financial engineering and a deep understanding of the LIBOR and treasury markets." and "I have known Will for probably 8 years now. Will is a smart guy who puts thought into the things he says. Cycling semi-professionally shows he's got the guts, tenacity, and focus to be a winner wherever he applies his energies. He's an honest and competent person with whom I would entrust my money."