Florian Weber

Florian

I’m a product engineer living in Barcelona, currently working on creative AI agents at Glif. Before that I was on the founding team at Twitter and co-founder and CTO of Amen.

I like working with small teams on new products, figuring out what they should do, shaping how they work and building them.

Recent work at Glif

I’ve been a product engineer at Glif since 2023, working through its evolution from an AI workflow builder to a creative AI agent.

  • Prompt primitives: styles and characters. Reusable building blocks for creative work, starting with styles and characters. The idea is to make creative choices easier to discover, combine and reuse, while improving the quality and consistency of the results.
  • Custom agent harness. I built much of the custom harness behind Glif’s creative AI agent. My work includes context and media management, durable execution, support for different language models, and tool-call cost estimation and billing.
  • Multiplayer experiments. Shared rooms where people and multiple AI agents can interact and work with generated artifacts.

How I work

I’ve mostly worked as a product engineer on early stage projects. I’m usually one of the first engineers on teams, often with a focus on social, new forms of interaction and AI.
I believe that the best new products are created when you embrace uncertainty, follow hunches and pursue initially vague objectives. Consciously admitting that you don’t know most things yet gives the freedom to ask good questions, experiment and build truly great products. Over the years, I’ve gotten very comfortable with this approach and enjoy the magic that can happen when everyone in a small, multidisciplinary team is comfortable with wearing many hats.

Earlier work

As a founding team member and engineer at Twitter, I built the first version with Jack Dorsey, and we continued developing the product together. I also built the public API and I worked on figuring out core product features like following and the character limit.
I also co-founded and was CTO of Amen, a social network startup aimed at creating structured data about “the best” in the world using a combination of ML and a unique playful mechanism. I built and led a team of engineers, worked on product and growth and helped raise venture capital.
Between Amen and Glif, I worked as a product engineer on early-stage projects, among them MUBI, Radicle and a streaming platform for Deutsche Grammophon. I also mentored founders at Berlin Founders Fund.

Contact

I’m always happy to chat. Please reach out via email or Twitter.
I’m also doing unoffice hours. You can book 30 minutes in my calendar here to talk about some ideas you have, a project you are working on or anything else.

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