Sofia Vanhanen

About

I'm the co-founder and CTO at Mosaic Labs, where I build experimental LLM interfaces to facilitate group deliberation.

I've worked as a full-stack engineer in web, mobile, and game projects since 2017, starting at 18 years old.

Outside work, I live a nomadic lifestyle, and spend my time exploring communities, embodiment, spirituality, and improvisation in art and life.

Current positions

Mosaic Labs

_{Co-Founder & CTO}

Building interfaces for AI-mediated collective reasoning and deliberation, and conducting research into how AI assistance can help humans collaboratively solve problems, with funding from sources focused on AI risk.

AI Safety Camp

_{Research Lead}

Managing six people over two teams as part of the Autostructures track in the 2025 AISC. Part of the Live Theory research direction, my focus is on the design and development of innovative, intelligent interfaces, empowering a human-centered approach to the future of AI and science more broadly.

Available for consulting

With experience spanning from multiple founding engineer roles to leading major features at Small Giant Games (starting at age 18), my current stack focuses on TypeScript, React, Tailwind, Node.js, PostgreSQL, Docker, and Google Cloud. See LinkedIn for my complete work history.

In teams, I move fluidly between technologies and roles. I'm used to taking a concept from zero to production, handling both technical implementation and practical UI/UX decisions along the way.

I'm particularly interested in projects involving innovative interface design, generative AI applications, digital democracy initiatives, and tools for thought—but I'm open to other work where my technical skills can create impact. If you have a complex problem needing creative solutions, let's talk.

Get in touch →

Project highlights

Nexus: AI-mediated deliberation

_{Technical Lead & System Architect}

LLM Interface Research React/TypeScript Multi-user Platform Deliberation

A platform for group deliberation that uses large language models to help groups understand each other better and surface insights and solutions that wouldn't have been found otherwise.

Autoblog: Dynamic content personalization

_{Creator & Developer}

LLM Interface Research React/TypeScript Next.js Adaptive Content

An interface that helps writers publish authentic thoughts while enabling readers to make sense of them in their unique context. Using AI to dynamically translate and personalize content, Autoblog demonstrates how technology can scale nuance and context in ways previously impossible.

Pantheon: AI-facilitated metacognition

_{Technical Lead & System Architect}

LLM Interface Research React/TypeScript Client-side App Tools-for-thought

An AI-facilitated metacognition tool exploring new ways to use LLMs to improve human thinking. Intricate, customizable AI characters and a novel, tree-like UI structure empower the user to think and work in new ways.

Cities of Orare: A vision of the future

_Co-Author

Worldbuild Future Studies Digital Democracy Award-winning

A vision of a positive future in 2045, where AI-powered prediction markets and digital democracy amplify collective intelligence, enhancing liberal democracy, economic distribution, and policy-making. Cities of Orare won the Foresight Institute Worldbuilding Course of 2024.

Harmony: Multi-user epistemic chatbot

_{Technical Lead & System Architect}

Chatbot Integration Python Structured Facilitation

A Slack- and Discord-based chatbot facilitating users in the double crux technique, enabling smoother argument resolution. Created as part of the Epistea fellowship program of 2023.