2x founder

Nick Rubin

Investor at First Round

Founder

Sendo· Winter 2022 🇺🇸 San Francisco, California, United States

in LinkedIn 𝕏 @nickrubin

2025Investor· First Round Capital

Founder · since 2019

Company

First Round Capital

Role

Investor

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco, California, United States

current

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

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Sendo

The best SMS/RCS API for startups

Winter 2022

Experience

Career

First Round Capital
Investor · San Francisco, California, United States · 2025 – Present
2025
Sendo (YC W22)
Founder
Founder · New York, New York, United States · 2022 – 2025
2022
Winno
Founder
Founder & Editor · San Francisco, California · 2019 – 2021
2019
TreeHacks
Tech Lead · Stanford, CA · 2016 – 2019
2016
Hipcamp
Software Engineer · San Francisco · 2018
2018
Berkman Klein Center for Internet & Society at Harvard University
Software Engineer · Cambridge, MA · 2015
2015

Bio

Stanford '21. Building things since age 13, including a viral Chrome extension, an Ethereum prediction market and bots to buy streetwear. I love books and travel – ask me about my 11,000-mile train trip.