COLE HARTMAN

コール・ハートマン

Hi, I’m Cole…

A growth minded, full stack software engineer with experience building apps and services across many languages and technologies.

My enthusiasm lies in creating software that bridges the gap between complex systems and their demands, delivering robust and scalable solutions.

WORK

Software Engineer Intern at Notion

Incoming SWE intern in San Francisco.

Summer 2026

Software Engineer Intern at GitHub

Rebuilt GitHub's Personal Access Token UI, reducing permission selection time by 40% and cutting input errors by 35%.

Summer 2025

Software Engineer Intern at Converge

Maintained and improved the Electron desktop app, increasing engagement by 48% and reducing deployment time by 70%.

Fall 2024

Software Engineer Intern at Happy Kiln

Led development of the modern e-commerce storefront using Next.js and Shopify’s Storefront API.

Summer 2024

Software Engineer Intern at Pure Mentorship

Modernized company website and improved codebase structure within a 4-person engineering team.

Spring 2024

PROJECTS

Serenity

Engineered a low-latency brainwave pipeline to compute stress biomarkers and detect overstimulation with LLM-based signal analysis.

Safety Snap

OSHA safety violation detection using Google Gemini vision + Supabase. Achieved 96% accuracy across 500+ evaluated site images.

N1X

Self hosted cloud service

ME

clicking

I build keyboards because they’re a controllable interface. Sound, travel, and resistance all respond to you. The way I use a computer revolves around the layouts, layers, and ergonomics. I prefer tools that adapt to my workflow, not the other way around.

sounds

I listen to music from many places: bossa nova, jazz, house, Spanish guitar, Masayoshi Takanaka, and everything adjacent. Raised by a professional musician and photographer, I grew up in a home shaped equally by jazz and visual art.

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reading

I read what piques my curiosity to learn. Fiction, interdisciplinary research, and anything in between. Recently I've been drawn to the intersection of technology and human experience. Currently exploring deep rainforest ecosystems and the architecture of autonomous AI agents.