Rob Koch
Software Engineer at Markwhen.com
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolRob Koch is a software engineer with 11 years of experience building full‑stack web applications and open-source products from prototype to production. Based in Seattle, he created and maintains Markwhen, a popular markdown-like timeline tool and collaborative editor with over 10k monthly active users, and contributes front-end improvements to projects like bolt.diy. He has driven product and architecture work at Google, Reddit, and the Defense Digital Service, including leading the federal Personnel Vetting Questionnaire replacement and shipping high-impact UX features used by millions. Rob blends pragmatic engineering (React, Vue, TypeScript, Node, PostgreSQL, Cloud) with a maker’s mindset for reducing user pain through elegant interfaces and tooling. He’s comfortable navigating stakeholder-driven programs and has a track record of turning complex requirements into usable, auditable systems. An unexpected strength: he routinely pioneers novel UX/encoding solutions (e.g., inventive QR embedding) and ships polished, collaborative web apps.
11 years of coding experience
5 years of employment as a software developer
Bachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Miami University
English, Chinese
Github Skills (17)
javascript10
file-management10
typescript10
ui-design10
uid10
front-end-development10
vue10
typescript-types10
typescripts10
react10
vue-jsx10
ui-components9
css9
context-menu9
web-development8
Programming languages (9)
Github contributions (5)
mark-when/markwhen
May 2021 - Jan 2023
Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 reviews, 282 commits, 2 PRs in 1 year 8 months
Contributions summary:Rob appears to be primarily involved in front-end development, contributing to the creation and maintenance of the user interface for the markwhen application. The commits demonstrate a focus on UI components and functionality, specifically time marker visualizations, event row rendering, and the implementation of a new event creation system. The work also involves the usage of various styling, likely using a CSS framework based on the code. The user's work demonstrates a good understanding of front-end development best practices.
markdowntimelinecalendarmarkwhenevents
stackblitz-labs/bolt.diy
Nov 2024 - Apr 2025
Prompt, run, edit, and deploy full-stack web applications using any LLM you want!
Role in this project:Front-end Developer
Front-end DeveloperContributions:6 PRs, 4 comments in 4 months
Contributions summary:Rob focused on enhancing the user interface and file management capabilities within the web application. They added support for Vue.js in the code editor and implemented context menus for file and folder interactions. Further improvements included features for copying file paths and relative paths, alongside consolidating sync and export functionalities into an overflow menu, streamlining the user experience.
full-stackllm
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