Founder Directory
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Founders3
Known for these resultsRole100%Role is parsed from founder titles in yc.db. Known for 100% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio100%Bio coverage: 100% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company100%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 100% of these rows have at least one match.School100%School is matched from bios, case-sensitive for acronyms. 100% of these rows have at least one match.
- Chalmers Brown@chalmers_brownFounder/CEO · JarminF25B2B · San Francisco
- Shirsendu Halder@shirsenhCo-Founder & Head of ML · JarminF25B2B · San Francisco
- Zack Leman@zackerylemanFounder/CTO · JarminF25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Chalmers BrownJarminFounder/CEOFall 2025B2BSan Francisco, United States5https://x.com/chalmers_brownShirsendu HalderJarminCo-Founder & Head of MLFall 2025B2BSan Francisco, United States5https://x.com/shirsenhZack LemanJarminFounder/CTOFall 2025B2BSan Francisco, United States5https://x.com/zackeryleman
Showing 1–3 of 3 founders
Zack Leman
Founder/CTO·Jarmin
PRIMARY INFO
RoleFounder/CTO
Team size5
BatchFall 2025
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Co-Founder & CTO at Jarmin.ai Previously - Staff Engineer at Meta Superintelligence Labs - SWE at Amazon Web Services (AWS) - CTO & co-founder of (catch) health - Founding SWE at Artera Education: Business Bridge Program @ The Tuck School of Business at Dartmouth Bowdoin College (Neuroscience & CS double major)
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Jarmin
AI Employees for human-level roles
