About
Phelim Bradley completed a PhD in Bioinformatics, developing software for bacterial data analysis using graph structures. He is co-founder and CEO of Prolific, a platform providing online research capabilities through a verified participant pool and integrated research tools.
Phelim Bradley @phelimb
When we started @Prolific, we were motivated by the question "what if MTurk was actually good"? It's sad to see Mturk closing it's doors, but it's not a surprise. Itβs the result of years of degrading data quality and an unhealthy marketplace. The future of AI and science https://t.co/MBuFrKpwEq

Jul 1, 2026 Β· β₯ 33 Β· β 4
Phelim Bradley @phelimb
Just launched https://t.co/JKAmAdLWrG. Our AI research team (PAIR) have been busy - working on science of evaluation: how to measure AI systems well, grounded in real human judgement at population scale. Check out the work thatβs live, but thereβs much more to come!
Jun 18, 2026 Β· β₯ 2
Phelim Bradley @phelimb
This one's been a long time coming! Longitudinal projects are live now on @Prolific, a dedicated way to run multi-wave research from start to finish. https://t.co/VJB6Khjb0J
Jun 12, 2026 Β· β₯ 6 Β· β 1
Founder at ProlificYC S19
Intro paths
Phelim went through Y Combinator (Summer 2019) β any YC alum in your network can reach them through the YC community.
In turn, Phelim can intro founders to Prolific's investors below.
Prolific's investors Β· 2
Experience
- Pioneer FundVenture Partnercurrent2023 β present
- ProlificCEOcurrent2021 β present
- ProlificCTO2014 β 2021London Area, United Kingdom
- Wellcome Trust Centre for Human Genetics, University of OxfordDPhil β Genomic Medicine and Statistics2013 β 2018
- IlluminaBioinformatics Intern2013Greater Cambridge Area
- University of CambridgeMPhil β Computational Biology2012 β 2013
- Tyndall National InstituteResearcher2011 β 2012Cork, Ireland
- University College Cork, Ireland (UCC)Computational Physics Lab Demonstrator2011 β 2012Cork, Ireland
- University of California, BerkeleyOpen Educational Resources Researcher2011Berkeley, California
- International HouseResident Assitant2011Berkeley, California
- University of California, BerkeleyUndergraduate Researcher2010
- Cornell UniversityUndergraduate Researcher2010Tompkins County, New York, United States
- Self-EmployedPrivate Tutor in Physics, Maths and Science (to ages 15-20)2009 β 2010Cork, Ireland
Education
- Y CombinatorS19, S192019
- University of OxfordDoctor of Philosophy (PhD), Genomic Medicine and Statisitics2013 β 2018
- University of CambridgeMaster of Philosophy (MPhil), Computational Biology2012 β 2013
- University College CorkBSc, Physics2008 β 2012
- Christian Brothers CollegeLeaving Certificate, English2001 β 2008
Skills & more
+12 more
CSSWeb DevelopmentMySQLCStatisticsComputational PhysicsVisual BasicRSimulationsPhysicsBioinformaticsComputational BiologyFrom Phelim's professional profile.
Same school
Also attended Y Combinator1,463
+ 1,457 more
Also attended University of Oxford745
+ 739 more
Also attended University of Cambridge652
+ 646 more
Also attended University College Cork34
+ 28 more
Shared employers
Also worked at Pioneer Fund56
+ 50 more
Also worked at Wellcome Trust Centre for Human Genetics, University of Oxford2
Also worked at University of California, Berkeley184
+ 178 more
Also worked at Cornell University76
+ 70 more









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