David B. Orr, Director
Chaplain, Metropolitan Jewish Health System
Dr. David Orr, MDiv, PhD, provides spiritual care for terminally ill patients and their families, most recently as a hospice chaplain at MJHS hospice in New York City. Dr. Orr received his post-graduate training in pastoral care at New York Presbyterian Hospital and Jewish Theological Seminary. He specializes in trauma care for children. He earned his PhD in Religious Ethics, as well as his Master of Divinity Degree, from Union Theological Seminary. Dr. Orr received his BA in Social Studies, magna cum laude, from Harvard College. He lives in New York City with his husband and two children.
Diana Miller, Treasurer
Partner at Wiss & Company, LLP
Diana Miller has over 18 years of experience in public accounting, serving a plethora of clients in not-for-profit, higher education, government and commercial organizations, performing audits, reviews, compilations, tax and consulting services. As Partner-in-Charge of our Not-for-Profit Group, Diana’s day-to-day responsibilities include overseeing the direction and strategy of the group while building client relationships and managing engagement teams. Additional responsibilities include identifying, researching and resolving accounting and auditing issues encountered on engagements and overseeing the preparation of nonprofit tax returns. Diana possesses significant not-for-profit and governmental auditing experience with associations, foundations, churches, healthcare entities, private schools, school districts, colleges and universities, municipalities and counties. In addition to performing financial audits, she has also performed numerous single audits and special consulting engagements. Diana has served on various special projects for clients, including the State of New Jersey Department of Education. She has also assisted clients with assessing internal controls and developing an accounting policies and procedures manual.
Marcus Mitchell, Director
Senior Engineering Director, Google New York
Marcus Mitchell is a Senior Engineering Director at Google. He works on software to automate Google’s supply chains for building data centers, consumer electronics, and more. He previously worked on Google Checkout, Google Wallet, Google.org, and search personalization. He is also on the board of All Star Code and works on Google initiatives to increase diversity in the tech industry. He received his undergraduate degree in engineering from Harvard and his PhD from Caltech.
Derek Jean-Baptiste, Chairman
Managing Director, Technology Division, JP Morgan Chase & Co.
Derek Jean-Baptiste is Head of Machine Learning Engineering and Services for Corporate Technology. Since joining JPMC, he created the Everest Team focused on creating a single set of services to manage the flow (Registration, Landing, and Transformation) of data through the Corporate Technology Data Ecosystem. Additionally, he is responsible for running the centralized team responsible for creating common platforms and services for machine learning for Corporate.
Elisabeth Mason, Director
Stanford Poverty and Technology Lab
Elisabeth Mason is the Founding Director of the Stanford Poverty and Technology Lab (formerly Stanford Technology, Opportunity and Poverty Lab or STOP) and a Senior Advisor at the Stanford Center on Poverty and Inequality. Previously, Elisabeth was the Co-Founder and CEO of Single Stop, a national anti-poverty initiative. A native of East Harlem where she developed her passion for social justice, Elisabeth was named “New Yorker of the Year” in 2015 by NY1 for her groundbreaking work fighting poverty, which reached nearly 20 percent of low-income New Yorkers.
Christina Lewis, Secretary
Founder & President, All Star Code
Christina Lewis is the Founder and President of All Star Code. Since its founding in 2013, All Star Code has taught coding to over 600 students via its flagship Summer Intensive program in New York City, Jersey City, and Pittsburgh, with many students going on to major in computer science in top schools around the country, intern with leading tech companies, and launch their own startups.
Formerly an award-winning journalist, Lewis’ work has been featured in publications such as The New York Times Magazine and The Wall Street Journal, where she spent five years as a staff writer. Building on the legacy of her late father, prominent Wall Street financier Reginald F. Lewis, Christina is a Director of The Reginald F. Lewis Foundation. She is also a member of the Hunter College Computer Science Advisory Board and an elected Director of the Harvard Alumni Association. Lewis has a Bachelor of Arts from Harvard College and lives in New York City with her husband and two children.
Elliott Breece, Director
Founder in Residence, Area 120
Gavin Leo-Rhynie, Director
Head of Platform Technology, Goldman Sachs
Gavin is co-head of the Platform Business Unit in the Technology Division and is a member of Firmwide Technology Risk Committee. Previously, he was head of Asia Pacific Technology from 2015 until his return to New York in 2017. Gavin joined Goldman Sachs in 1994 and has had roles across Foreign Exchange Trading & Sales Technology, Interest Rate Products Technology and Prime Services Technology. He became a technology fellow in 2006 and was named managing director in 2010 and partner in 2016. Gavin is on the board of CFY New York, a nonprofit organization that helps students in low-income communities utilize digital learning to further their education. Gavin earned bachelor’s degrees in computer science and economics from the University of Pennsylvania.
Michael Winchell, Director
COO of Trade Informatics Inc
From 2012 through 2015 he served as Chief Investment Officer and founder of Larkin Point Investment Advisors LLC. Michael served Mariner Investment Group as a global macro portfolio manager from 2008 through 2011. From 1999 through 2007, he was a managing partner of Hunter Partners and COO of Bear Wagner Specialists LLC, a company jointly owned by Hunter Partners LLC and Bear, Stearns & Co., Inc.
Michael served as Chief Risk Officer of Bear, Stearns & Co. from 1989 through 1998, and additionally as head of International Fixed Income Trading from 1995 through 1998. He was a member of the Risk, Funding and Credit Committees. In 1997, he was elected to the Bear Stearns’ Board of Directors.
Mr. Winchell has a BA and MA from the University of North Carolina at Greensboro and received his MSc in Economics from North Carolina State University. Michael joined the Finance Committee of All-Star Code in 2018.
Djassi Julien, Associate Board Member
Software Engineer at Google
Djassi Julien is a Software Engineer at Google, where he works on improving the experience of Google Search users by organizing the search results page. He participated in the All Star Code Summer Intensive in 2014 and is a member of the first cohort of All Star Code alumni. He is also the first All Star Code alumni to sit on All Star Code’s Board of Directors. He graduated in May from Harvey Mudd College where he studied Computer Science, Mathematics, and Literature.