David Blass
Founder at Arktype
Somerville, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolDavid Blass is a founder and software engineer with nine years of experience building developer-focused tools and test automation, now leading Pullfrog and authoring ArkType—the first isomorphic type system for JS/TS. He combines deep TypeScript and type-system expertise with hands-on experience shipping devtools, testing platforms, and scalable UI test solutions across startups and Amazon. David has a track record of turning testing and automation pain points into productized solutions (e.g., PyEcho at Amazon and the record-and-playback tooling at Redo), and he led ArkType’s advanced static inference work that pushes TypeScript’s type capabilities. Based in Somerville, he blends entrepreneurial leadership with product-first engineering and often invents new paradigms to cut maintenance and improve developer experience.
9 years of coding experience
8 years of employment as a software developer
Computer Science, Entrepreneurial Leadership, Philosophy, Computer Science, Entrepreneurial Leadership, Philosophy at Tufts UniversityMarshwood High School
French, English
Github Skills (200)
postgresql10
watch10
deno-deploy10
material-ui10
class-validator10
typebox10
abi10
type-system10
turborepo10
visual-studio10
apollo-client10
bundler10
form-validation10
transpiler10
schema10
Programming languages (6)
Github contributions (5)
arktypeio/arktype
Jun 2019 - Jan 2023
TypeScript's 1:1 validator, optimized from editor to runtime
Contributions:21 releases, 268 reviews, 1138 commits in 3 years 7 months
static-typingruntime-typecheckingjavascriptparsingisomorphic
arktypeio/arkdark
Aug 2021 - Feb 2023
Contributions:12 commits, 30 pushes, 1 branch in 1 year 6 months
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