Team
Charles co-founded Meridian Labs in 2025 to advance the public understanding of AI systems through comprehensive evaluation tools and research. Prior to founding Meridian, Charles was a Technology and Security Policy Fellow at the RAND Corporation, where he helped develop Inspect AI.
Previously, Charles worked at Posit, PBC, where he created the Quarto scientific publishing system. Charles also founded Lose It! co-founded Onfolio, and was a VP of Engineering at Allaire Corp.
Previously, Charles worked at Posit, PBC, where he created the Quarto scientific publishing system. Charles also founded Lose It! co-founded Onfolio, and was a VP of Engineering at Allaire Corp.
J.J. co-founded Meridian Labs in 2025 to build open source tools for AI research and evaluation. J.J. also works as an advisor to the UK AISI and is a visiting researcher at the US CAISI, focusing on platform technology and AI measurement science.
Previously, J.J. founded several tech companies, creating a variety of products including the RStudio statistical computing environment, the Quarto scientific publishing system, and the Cold Fusion web application server.
Previously, J.J. founded several tech companies, creating a variety of products including the RStudio statistical computing environment, the Quarto scientific publishing system, and the Cold Fusion web application server.
Eric co-founded Meridian Labs in 2025, bringing extensive expertise in software architecture and engineering leadership. Most recently, he served as Distinguished Engineer at Sonos after leading their entry into B2B as Senior Director for Sonos for Business.
Previously, Eric co-founded Talko Inc. as VP of Development, was Partner Software Engineering Manager at Microsoft across Xbox and Office platforms, and was a co-founder/VP of Development at Groove Networks, was a founding engineer at SilverStream Software and led development at Iris Associates (Lotus Notes).
Previously, Eric co-founded Talko Inc. as VP of Development, was Partner Software Engineering Manager at Microsoft across Xbox and Office platforms, and was a co-founder/VP of Development at Groove Networks, was a founding engineer at SilverStream Software and led development at Iris Associates (Lotus Notes).
Alexandra is Technical Program Manager at Meridian Labs. Prior to joining Meridian, Alexandra co-founded the AI Safety Engineering Taskforce in 2024, where she led the development of Inspect Evals, an open-source repository of 100+ AI evaluations.
Previously, Alexandra was Engineering Lead at Wise. She has published research on AI evaluations and adversarial training, and holds an MSc in Big Data Engineering from the University of Stirling.
Previously, Alexandra was Engineering Lead at Wise. She has published research on AI evaluations and adversarial training, and holds an MSc in Big Data Engineering from the University of Stirling.
Ransom joined Meridian Labs in 2025 as Principal Researcher. Prior to joining Meridian, Ransom served as Principal Software Architect at Microsoft, where he led the technical design of Copilot Pages and directed the development of Microsoft Loop Copilot, delivering features with exceptional customer feedback.
Previously, Ransom built a machine learning team focused on improving collaboration in Microsoft Office,, shipped Azure ML FPGA inferencing, co-founded Talko Inc. (acquired by Microsoft) as service team lead, and was an engineer at Groove Networks where he designed their peer-to-peer synchronization engine. He holds 20+ patents and published research in cryptography.
Previously, Ransom built a machine learning team focused on improving collaboration in Microsoft Office,, shipped Azure ML FPGA inferencing, co-founded Talko Inc. (acquired by Microsoft) as service team lead, and was an engineer at Groove Networks where he designed their peer-to-peer synchronization engine. He holds 20+ patents and published research in cryptography.
Kai joined Meridian Labs in 2026 as a Research Engineer, where he works on advancing the state of automated alignment auditing and evaluations in collaboration with the UK AI Security Institute.
Prior to joining Meridian, Kai was an Anthropic Fellow and MATS AI Safety Researcher, where he developed Petri, an open-source alignment auditing tool that enables diverse and rapid evaluations of model alignment. Petri has been widely adopted by researchers across multiple organizations and most frontier labs.
Kai has conducted predeployment safety audits of frontier models and has been working on model evaluations for over two years, collaborating with researchers at Anthropic, Google DeepMind, OpenAI, and Stanford. He holds an MSc from Stanford University, where his research focused on AI safety and alignment.
Kai has conducted predeployment safety audits of frontier models and has been working on model evaluations for over two years, collaborating with researchers at Anthropic, Google DeepMind, OpenAI, and Stanford. He holds an MSc from Stanford University, where his research focused on AI safety and alignment.
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