Our experts in residence
BU Spark!, through the Boston University Faculty of Computing & Data Sciences, hosts distinguished individuals and alumni as part of its Experts in Residence Program. Experts in residence get deeply involved with Spark! by leading initiatives, providing strategic counsel to the Spark! team, and directly engaging with and supporting students. They also pursue projects with support from student teams. Learn more about the Experts in Residence Program.
Ayora Berry, Ed.D.
Expert in Residence for Product Innovation + Vice President, PTC
Ayora is a software product leader and educator with experience in academic, non-profit, and corporate sectors. e takes a holistic approach to problem solving that blends business, design and technology frameworks with a focus on incubating new solutions in the areas of CAD, PLM, IOT, AR, ALM FSM, AI, and edtech. He is currently the vice president of Product Strategy at PTC, an engineering software company with 37,000+ customers worldwide. He founded Elements88.com, an edtech consulting firm that offers services in strategy, app development, and education programming. Ayora holds a Bachelor of Arts in History, a Bachelor of Science in Biology, a Master of Teaching, and a Doctorate in Education. He lives in Arlington, Massachusetts.
Adam Friedman
Expert in Residence + Founder and CEO, Civera
Adam is an entrepreneur, political organizer, and full-stack software engineer. He is founder and CEO of Civera, a small software consultancy in Cambridge, whose mission is to liberate public data and improve government transparency. Civera’s flagship product is ElectionStats, a publishing platform used by seven states to make election results and voting statistics far more accessible to the public. Adam has also served as a leading advocate for ranked choice voting. He co-founded Rank the Vote in 2020 and co-founded ranked choice voting organizations in over 20 states, training up volunteer leaders on the grassroots capacity growth model he built and executed as the founder and Executive Director of Voter Choice Massachusetts (VCMA) between 2016 and 2019. VCMA transformed into the YES on 2 ballot measure campaign of 2020 and became the largest statewide movement for ranked choice voting in US history. Adam has a Bachelor of Arts in History from Boston University, and resides in Somerville, Massachusetts.
Tom Hopper
Expert in Residence + Director, Center for Housing Data at MHP
Tom (he/him) is a housing policy professional and data scientist focused on making complex data sets and policy topics more accessible to a general audience using interactive tools and visualizations. Tom has over 15 years of experience in the affordable housing field, including developing database systems, designing metrics, and creating data tools and analytical reports that provide insight into issues facing affordable housing developments. He has also led public policy research efforts on topics such as transit-oriented development, housing production, affordability, land use, and housing stability. Tom has a bachelor’s degree in economics, a master’s degree in city planning from Boston University, and a master’s degree in urban informatics from Northeastern University.
Michelle Johnson
Expert in Residence + Associate Professor Emerita, Boston University
Michelle is an associate professor emerita at the Boston University Department of Journalism. She retired in 2022, where she taught a variety of courses focused online journalism and media storytelling. She is a former editor of the Boston Globe and Boston.com. A graduate of the Columbia University School of Journalism, Michelle was awarded the school’s distinguished alumni award in 2020. In 2022, she was the recipient of the Online News Association’s Rich Jaroslovsky Founder Award, which honors “a senior-level individual who has significantly advanced or made lasting contributions to the field of digital journalism.” She was also inducted into the Association of LGBTQ Journalists Hall of Fame in 2022. Michelle was named 2013 Educator of the Year by the National Association of Black Journalists. She served as the very first Academic Representative on the board of the National Association of Black Journalists from 2015 to 2018. She writes and edits AI Insider, a newsletter that tracks the latest developments in artificial intelligence.
Carl Williams
Expert in Residence + Assistant Professor, Cornell Law School
Carlton (he/him) is an assistant professor of clinical law at Cornell Law School. He is a movement lawyer and organizer dedicated to building and supporting liberation struggles. He has practiced criminal and civil rights law in Massachusetts for many years. He began his legal career as a criminal attorney with the Roxbury Defenders and later served as a racial justice attorney with a national civil liberties non-profit. Carlton has been an advocate on issues of war, immigrant rights, LGBTQ rights, and Black and Palestinian liberation. He is a member of the National Lawyers Guild and has served as the chair of its Massachusetts board of directors. He was part of the legal defense for the Occupy Boston movement, providing legal, bail, and court support and training to the thousands of participant-organizers. In 2015, he served on the working group that organized the inaugural Law for Black Lives convening and was a featured speaker in its RadTalks event. He has taught issues of social justice and the law at Northeastern University School of Law and Yale Law School. Carlton was the executive director of the Water Protector Legal Collective, defending and supporting Indigenous environmental justice and sovereignty. He is a graduate of the University of Rhode Island, the Pre-Law Summer Institute for Native Americans, and the University of Wisconsin Law School.
Freddie Vargus
Expert in Residence + Former Senior Machine Learning Engineer, GitHub
Freddie is currently building a company focused on AI evaluation, leveraging his prior experience as a Senior ML Engineer at GitHub. He has had a career focus on building systems and tools for Machine Learning & Data Science, and before GitHub he worked at various startups in quant finance, agriculture, and e-commerce. He also has experience in maintaining and contributing to open-source software, and idea-stage venture capital. Freddie has a Bachelor’s Degree in Computer Science from Boston University.
Paul Singer
Expert in Residence + Investigations and Impact Editor at GBH News Center for Investigative Reporting
Paul is a career reporter, now applying his breadth of experience to his current position as Investigations and Impact Editor at the GBH News Center for Investigative Reporting. Most notoriously, Singer spearheaded GBH’s award-winning series, the Color of Public Money, which has exposed the systemic exclusion of minority-owned businesses from public contracts in Massachusetts. His other achievements include stints at USA Today, serving as UPI’s White House Correspondent, and acting as stage manager for the National Folk Festival in Lowell and other cities.
Stephen Ellis
Expert in Residence + Director of Analytics, BU Sustainability
Stephen oversees data collection, analysis, and reporting for BU Sustainability on a range of topics such as energy, waste, green buildings, and transportation, and key reports such as BU’s GHG (greenhouse gas) inventory, and STARS (Sustainability Tracking, Assessment & Rating System). BU serves as a Committee Member, STARS Steering Committee, and an Advisory Council Member, Diversity, Equity & Inclusion Committee of the Association for the Advancement of Sustainability in Higher Education (AASHE).
Ricardo Villamil
Expert in Residence + Software Engineering Manager, Slang
Originally from Bogotá, Colombia, Ricardo moved to Boston over 25 years ago. He studied at BU where he obtained both his Bachelor’s and Master of Science degrees in Computer Science and graduated summa cum laude. He has always been passionate about coding and technology in general, as well as coaching and mentoring to share that passion. Currently, he manages the software engineering team at Slang to create powerful backend systems that fuel their language learning platform. Previously, Ricardo worked at HubSpot where he honed his leadership and backend systems skills, while his teaching assistant role at Harvard University Extension School allowed him to guide students in AI, robotics, and wearable technology. Ricardo is passionate about using technology to solve real-world problems and is always eager to take on the next big challenge. In his spare time, he likes to play tennis, run, ski, and is also an airplane pilot!
Julie Lee
Expert in Residence + Technology for Liberty Fellow at ACLU of Massachusetts
Julie (she/they) is the Technology for Liberty Fellow at the ACLU of Massachusetts. She works at the intersection of technology and civil rights and civil liberties, using data-driven investigations to hold government and corporations to account. Her work focuses on surveillance, privacy, and algorithmic decision-making/“AI”, such as investigating police use of surveillance technologies, and the sale of cellphone location data. Prior to joining the ACLU of Massachusetts, she was a postdoc at New York University. She holds a PhD in Neuroscience from University College London and a BSc in Psychology from the University of Bristol. Her academic expertise is in reinforcement learning and decision-making, using the tools of computational modeling, machine learning, and computational neuroscience broadly.
Jack Lull
Expert in Residence + Principal Scientist at Adobe
Jack is a longtime veteran of the software industry in the Boston area and has served in both technical and senior management roles at four successful startups. He’s currently a Principal Scientist at Adobe, primarily focused on architecture for large-scale software-as-a-service products. Jack is a three-time graduate of Boston University with a BS/MS in Computer Science and MBA. He currently resides in downtown Boston, Massachusetts.