Meet the team

Core team

Howie Lempel


Howie previously worked on global catastrophic risks as a program officer at Open Philanthropy. Before that, he went to Yale Law for two years, where he spent his summers as a public defender in Louisiana and suing prisons with poor conditions at the ACLU. He left Yale to join Open Philanthropy while it was still being incubated at GiveWell. Howie has also worked on white collar crime at the Manhattan DA’s office and on U.S. economic policy as a research assistant at the Brookings Institution. As an undergraduate, Howie studied mathematical economics and interdisciplinary social studies at Wesleyan University, a small liberal arts college in Connecticut.

[email protected]
Author archive

Benjamin Todd

President & Founder

Ben managed 80,000 Hours while it grew from a lecture, to a student society, to the organisation it is today. Before 80,000 Hours, he was the first undergraduate to intern as an analyst at a top investment fund. He has a 1st from Oxford in Physics and Philosophy, has published in Climate Physics, once kick-boxed for Oxford, and speaks Chinese, badly.

Author archive

Alex Lawsen


Alex studied Physics at Oxford, after which he completed Teach First and taught Physics and Maths at King’s Maths School. Alongside teaching he worked for SoGive as a senior analyst. He’s a moderator and enthusiastic forecaster on Metaculus and has run occasional forecasting workshops, including for Cambridge Existential Risk Initiative, Stanford Existential Risk Initiative, and the LSE Arete fellowship.

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Arden Koehler

Website Director

Before coming to 80,000 Hours, Arden got a PhD in philosophy from New York University, with a specialisation in ethics and attitudes toward time.

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Author archive

Bella Forristal


Before joining 80,000 Hours, Bella worked in movement building at Effective Altruism Oxford, and was part of the co-founding team of the Global Challenges Project. She studied Classics & Philosophy at Oxford, with a particular interest in ethics and non-human animals.

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Benjamin Hilton

Research Analyst

Benjamin is a former civil servant, having worked as a policy adviser across the UK government in the Cabinet Office, Treasury and Department for International Trade. He has master’s degrees in economics and theoretical physics and he has published in the fields of physics, history and complexity science.

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Author archive

Brenton Mayer

Director of Internal Systems

Brenton came to 80,000 Hours after practicing clinical medicine in Australia. He co-founded the Run to Better Days and Effective Altruism Australia, non-profits promoting effective development aid for people living in extreme poverty. He once represented his city in table tennis and takes the sport way too seriously.

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Habiba Islam


Habiba previously served as the Senior Administrator for the Future of Humanity Institute and the Global Priorities Institute at Oxford. Before that she qualified as a barrister and worked in management consulting at PwC specialising in operations for public and third sector clients.

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Jenna Peters


Before 80,000 Hours, Jenna worked as a project manager at the Centre for Effective Altruism and a Post-Baccalaureate Fellow at the Center for Global Women’s Health Technologies at Duke University. Jenna graduated summa cum laude from Duke University with a BS in neuroscience.

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Luisa Rodriguez

Research Analyst

Before joining us, Luisa was Will MacAskill’s Chief of Staff at the Forethought Foundation. Before that, she conducted cause prioritisation research at Rethink Priorities and the Future of Humanity Institute, and cost-effectiveness analysis for nonprofit and government programs at ImpactMatters, Innovations for Poverty Action, and GiveWell.

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María Gutiérrez Rojas

Job Board Manager

María graduated from NYU Tisch’s Film and TV program with a concentration in traditional hand-drawn animation and received several scholarships from The Art Student’s League of NY, where she studied representational painting and drawing.

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Maria Bækkelie

Job Board Curator

Maria is a service designer and has previously worked at a large Norwegian bank and Oslo Public Library. She holds MSc in Industrial Design and has studied Global Health at the Norwegian University of Science and Technology. In 2014 she joined the newly started EA chapter at her university and has since co-founded both and Effective Altruism Norway.

Matt Reardon


Matt came to 80,000 Hours after three years of litigating for a top global law firm. Before that, he led Harvard Law School’s Effective Altruism student group. He continues to support EA groups at law schools and EA community building in the legal field more broadly.

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Michelle Hutchinson

Assistant Director of One-on-one Programme

Michelle holds a PhD in Philosophy from the University of Oxford, where her thesis was on global priorities research. While completing that, she did the operational set-up of the Centre for Effective Altruism and then became Executive Director of Giving What We Can. She came to us fresh from setting up the Global Priorities Institute at Oxford.

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Niel Bowerman

Director of One-on-One Programme and Job Board

Niel was a co-founder of the Centre for Effective Altruism and previously served as Assistant Director at Oxford University's Future of Humanity Institute. He holds a PhD in physics from Oxford, and served as a climate science advisor to the Office of the President of the Maldives. Niel sits on the board of the Centre for Long-Term Resilience.

[email protected]
Author archive

Rob Wiblin

Head of Research

Rob won a scholarship to study genetics and economics at the Australian National University, graduating top of his class and being named Young Alumnus of the Year in 2015. He worked as a research economist in various Australian Government agencies, before moving to the UK to work at the Centre for Effective Altruism, where he was Research Director and then Executive Director, before moving to 80,000 Hours. He was also a founding board member of Animal Charity Evaluators and a member of the World Economic Forum's Global Shapers Community.

Author archive

Roman Duda

Software Engineer

Roman did a fully-funded Masters in Philosophy at Oxford, during which he also consulted for a major energy company on their business strategy, whilst also studying Mandarin Chinese. With a strong interest in Quantified Self, he has worked at the start-ups Memrise and Self Spark.

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Author archive

Sashika Coxhead

Operations Specialist

Before working at 80,000 Hours, Sash was a junior doctor in London. She graduated from King’s College London in 2018, where she received multiple awards for academic excellence and did research on HIV that was published in Nature Microbiology.

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Ben Cordell

Audio Engineer

Ben is an electronic music artist and audio engineer. He received both his bachelor's and master's degrees from the Jacobs School of Music at Indiana University, focusing on double bass, music technology, and audio engineering. When he's not working, Ben loves making music and playing with his two cats.

Katy Moore

Editorial and Content Assistant

Katy holds a BA in History from Oregon State University and a Master of Library and Information Studies from the University of Alberta. Previously she's worked as a plain language specialist and content coordinator in the areas of public legal information and mental health services. When she's not working, you can find her chasing warm weather to go on nature hikes and canoe trips with her slightly neurotic dog.

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Keiran Harris

Podcast Producer

Keiran is a former professional poker player and coach. He was sponsored by PokerStars, the largest online poker company in the world, and made dozens of instructional videos for Run It Once, a leading poker strategy community. He’s had articles published in Forbes and Quillette, and made the obvious transition from a graduate psychology program at the University of Melbourne to producer of the 80,000 Hours Podcast.

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Valerie Richmond

Software Engineer

Valerie received Bachelor's and Master's degrees in computer science from MIT, where she researched self-driving car safety models. She then worked on software to speed up US clinical trials. She has interests in ethics, weightlifting, dogs, and the outdoors.

CEA staff who work with 80,000 Hours

80,000 Hours is part of the Centre for Effective Altruism.

Andrew Leeke

Operations Associate

Andrew ensures that operations within CEA run smoothly, ensuring that staff have access to information and are happy with HR systems. He studied psychology and philosophy at the University of Oxford.

Chloe Malone

U.S. Operations Specialist

Chloe is responsible for analyzing and improving our operations, managing our legal compliance, and handling some of our external communications. She was previously the communications coordinator for Effective Altruism Australia; alongside her work for CEA, she's currently a project manager for a fundraising gaming app being developed for an NGO. She graduated from the University of Sydney and holds a B.A. in two majors: Philosophy, and Media and Communications.

Josh Axford

Head of Operations

Josh manages operations for CEA in the UK. Before joining CEA, he went from COO to CEO of a marine research charity working towards a world where marine life and humans thrive together. He studied Physics at university and attended the Royal Military Academy of Sandhurst, where he was commissioned as an officer in the British Army. He is also a professionally trained project manager and an alpine mountaineering instructor.

Litawn Gan

Finance & Data Lead

Litawn oversees financial control, budgeting, and forecasting for CEA. Before joining CEA, he worked on data visualisation and analysis with RC Forward. Litawn holds a BSc in physics from Stanford University.

Our Advisors

Prof. Will MacAskill

Co-founder and Trustee

In 2009, Will co-founded Giving What We Can, a leading charity evaluator that has raised over $400m in pledged donations to effective charities and advised the UK government, World Bank, Oxfam among others. In 2011, he co-founded 80,000 Hours with Ben. Currently an Associate Professor of moral philosophy at Oxford, Will has pledged to give over half his income to charity, and is the author of Doing Good Better.


Claire Zabel


Claire leads Open Philanthropy's grantmaking on effective altruism, and does research and makes grants relating to the reduction of global catastrophic risks. She has a B.S. and M.S. in Earth Systems from Stanford University, where she did research related to the science, ethics, and governance of solar geoengineering. She joined our governing board in 2019.

Dr Owen Cotton-Barratt


Owen has a PhD in pure mathematics from Oxford. He has published in several disciplines and now works as a Research Fellow at the Future of Humanity Institute. We turn to him when we need to vet some tricky analysis.

Tasha McCauley


Tasha is a technology entrepreneur and CEO of GeoSim Systems, which centers around a new technology that produces high-resolution, fully interactive virtual models of real cities. She also serves on the board of directors of OpenAI, an AI research company focused on discovering and enacting the path to safe artificial general intelligence.

Dr Toby Ord


Toby is a Fellow of Oxford University’s Future of Humanity Institute, an expert in global prioritisation, and has been repeatedly covered in the international media for promoting cost-effective philanthropy and founding Giving What We Can.

Professor Hilary Greaves


Hilary is a Professor of Philosophy at the University of Oxford and Director of the Global Priorities Institute. Her research focuses on issues of global priorisation, foundational issues in consequentialism, interpersonal aggregation, population ethics, moral uncertainty, and the interface between ethics and economics. She has been interviewed about these topics on our podcast, and joined our governing board in 2019.


Peter Hartree


Peter is currently pursuing independent study, supported by the Long-Term Future Fund. He previously worked in various roles at 80,000 Hours.


Brian Tse


Brian works on the governance, safety and international relations of AI. He is a Senior Advisor at the Partnership on AI and a Policy Affiliate at the University of Oxford’s Centre for the Governance of AI. He is a former investment banker at J.P. Morgan. Brian advises us on careers related to Sino-Western cooperation.