ChoLab

Steffek Rainey is an award-winning industrial designer and inventor at Harvard University. He invented his first product at just 16 years old, and in the years since, he has created more than ten successful innovations spanning products, apps, and systems. Steffek focuses on building ventures that empower everyday people to take meaningful action to address some of the world's most urgent challenges, like plastic waste, epidemics, and climate change.

I’m currently pursuing my Master’s in Design Engineering at Harvard, focusing on AI-HCI. Alongside, I work at Scale AI on human-in-the-loop evaluation for generative AI models like GPT, Gemini, and Grok—researching multimodal systems and model Chain of Thought behavior. I love designing tools that tackle 0-to-1 problems in complex spaces and experimenting with new LLM workflows. This Fall, I’ll also serve as an Anthropic Ambassador, reviewing upcoming features, creating real-world use cases, and exploring hands-on integrations across industries. Previously, I led growth as a Product Lead at Korea’s largest unicorn fintech startup, and held product management roles at the Korean Government and LG. Recently, I was honored with the Entrepreneur Award at the Harvard President’s Innovation Challenge.

Diksha Chugh is a Master’s student in Design Engineering at Harvard with a background in computer science and AI. She works where design and engineering meet, using technology to create practical, human-centered solutions. Passionate about tackling big challenges, she focuses on creating a more sustainable future for both people and the planet. Diksha is driven by the belief that innovation should not only solve problems but also make life better and fairer for communities everywhere.