Stephen Balogh

s2.dev (YC F25)

Co-founder

s2.dev· Fall 2025 🇺🇸 Berkeley, California, United States

in LinkedIn 𝕏 @sgbalogh0

2024Co-founder· s2.dev (YC F25)

Founder · since 2024

Company

s2.dev (YC F25)

Role

Co-Founder, CTO

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

s2.dev

API for unlimited, durable, real-time streams

Fall 2025

Experience

Career

s2.dev (YC F25)
Co-founder
Co-Founder, CTO · San Francisco Bay Area · 2024 – Present
2024
Etsy
Staff Machine Learning Engineer, Retrieval Systems · Brooklyn, New York, United States · 2023 – 2024
2023
Etsy
Senior Machine Learning Engineer, Search Matching · Brooklyn, New York, United States · 2020 – 2023
2020
Etsy
Software Engineer, Search Infrastructure · Brooklyn, New York · 2018 – 2020
2018
New York University
Data Services Specialist · New York, NY · 2015 – 2018
2015
New York University
Associate · New York, NY · 2014 – 2015
2014
University of Chicago Center for Cognitive and Social Neuroscience
Laboratory Manager · Chicago, Illinois · 2013 – 2014
2013

Bio

Loves Rust, and building systems that scale. Previously built novel infra for multi-modal product search at Etsy, and digital repository software at NYU