Grant Custer
Designer & Engineer
Slowly going out on a limb
About
I'm a designer and engineer focused on new and alternative interfaces. I specialize in prototyping and I love to work iteratively through a design in code.
Finding the right primitives for exploring a system is one of my favorite challenges.
I've built interfaces focused on spatial thinking, AI capabilities, and data visualization. I like to work on small, collaborative teams.
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Portrait made with ghost
Work
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Prototyping interfaces for interacting with large language models. Going beyond chat. Focused on increasing our understanding and control.
Creative technologist
2023-Present
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Experimental web-based creative tools. Featuring image distorters, freeform text editors, and weird website builders. Targeted experiments in alternative interfaces.
Creator, designer & engineer
Side project: 2019-Present
Featured
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Flow
An experimental image editor that lets you set and direct pixel-flows.
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A directed typing experiment. You choose the direction the letters should flow.
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Adjust the grid size and text direction to create weird and expressive layouts.
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Prototyping a new flutter-based tablet operating system focused on deep work. Trying to rethink things from the ground up.
Software engineer
2023
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Virtual spaces where you can meet, collaborate and play. I led engineering on features like drawing and screenshare, and built prototypes for experimental features like card stacking.
Engineer
2022
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A better system for image organization. I led front-end engineering for the first versions of an experimental interface that lets you browse and make connections between thousands of images. We used WebGL to build a reactive, intuitive way to explore images clustered through machine learning.
Front-end engineer
2021
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A research lab. We built quarterly prototoypes exploring machine learning capabilities. I designed and built the front-end for experiments exploring capabilities like summarization, sentiment analysis, and prediction. I also led design for the branding and print reports.
Designer & engineer
2014-2021
Featured
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Active Learner
An interactive visualization of active learning data labeling and how it affects a model.
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Turbofan Tycoon
A federated learning demonstration in the form of turbofan factory simulation game.
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Textflix
Sentiment analysis of movie review visualized and compared across different models.
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Worked on many early-stage prototypes and experiments, including Instapaper, Poncho, and Findings.
Designer & engineer
2012-2014
More
Work and inspiration in progress
Thoughts, quickly written
Grant Custer
Designer & Engineer
Index
2025