Where does Joseph Metzinger work?

Joseph Metzinger is Founder of Mozio and Founder at Stacksi.

What companies did Joseph Metzinger found?

Joseph Metzinger founded Mozio, Stacksi.

Where did Joseph Metzinger go to school?

Joseph Metzinger studied at University of California, Berkeley (Bachelor of Arts, Computer Science); Y Combinator.

Joseph Metzinger

Founder

Founder at Stacksi · Founder at Mozio

Los Angeles Metropolitan Area

FoundedMozio Stacksi · YC

Find your path to Joseph

319 people in our graph share verified history with Joseph — schools, employers, funds. One of them is your warm intro.

MattunlockedJoseph: together at University of California, Berkeley (2011)

×11Joseph: together at University of California, Berkeley

About

Joseph Metzinger studied computer science at UC Berkeley. He previously served as co-founder and CTO at Mozio from 2011 to 2020 before co-founding Stacksi, where he currently holds the CTO role.

Founder at Stacksi YC W21

Intro paths

Joseph went through Y Combinator (Winter 2021) — any YC alum in your network can reach them through the YC community.

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In turn, Joseph can intro founders to Stacksi's investors below.

Stacksi's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2021

Co-founders at Stacksi

Emre Murray MangirFounder

Founder at Mozio

Intro paths

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In turn, Joseph can intro founders to Mozio's investors below.

Mozio's investors · 5

Alpaca VCNew York · $500K – $1.3M checks Asset Management CompanyMenlo Park · $500K – $2M checks HOWZAT PartnersLuxembourg · since 2023 JetBlue VenturesSan Francisco SKY VCNew York

Co-founders at Mozio

David LitwakFounder

Experience

DrataSenior AI Engineering Managercurrent2026 — presentLos Angeles Metropolitan Area
DrataAI Engineering Manager2025 — 2026Los Angeles Metropolitan Area
Mozio GroupBoard Member / Advisorcurrent2020 — presentSan Francisco Bay Area
Mozio GroupFounder & CTO2011 — 2020San Francisco Bay Area
SafeBaseHead of Innovation (Acquired by Drata)2023 — 2025Los Angeles Metropolitan Area
StacksiFounder & CTO (acquired by SafeBase)2020 — 2023Los Angeles Metropolitan Area

Skills & more

PythonJava12MySQL3CDjango1PerlAndroidRuby on Rails2Objective-C1Microsoft Office1LispAlgorithms6

+5 more

ManagementStart-upsSocial MediaTestingLeadership

From Joseph's professional profile.

Frequently asked questions

Who is Joseph Metzinger?: Joseph Metzinger studied computer science at UC Berkeley. He previously served as co-founder and CTO at Mozio from 2011 to 2020 before co-founding Stacksi, where he currently holds the CTO role.
Where does Joseph Metzinger work?: Joseph Metzinger is Founder of Mozio and Founder at Stacksi.
What companies did Joseph Metzinger found?: Joseph Metzinger founded Mozio, Stacksi.
Where did Joseph Metzinger go to school?: Joseph Metzinger studied at University of California, Berkeley (Bachelor of Arts, Computer Science); Y Combinator.