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Upstream

An email client that feels human and fun

7 employees

Pre-seed · $3.0M

About Upstream

Upstream is a modern email client designed to make email feel human again. It drafts replies in your exact voice using prompts you control, so you can fly through your inbox with a calmer, more enjoyable experience.

Open positions (2)

Founding Mobile Engineer

Paris, Île-de-France, FR

StandoutYBacked by Y Combinator · P26

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Founding Product Engineer

Paris, Île-de-France, FR

Company details

Team Size7

Funding

Total raised

$3.0M

Last stage

Pre-seed

Investors

Y Combinator

Founders

JT

Jonathan Tiret

I am the co-founder & CTO @ Upstream. My love for software started when I was only a teenager: I developed @ Dino Gaia, one of the most popular online French consumer games in the 2000s, registering a million visits every month. I've since built extensive technical hands-on and leadership experience across multiple sectors, including ride-hailing, fintech, and legaltech. I was most recently the VP of Engineering @ Doctrine before it got acquired.

Jonathan Tiret

I am the co-founder & CTO @ Upstream. My love for software started when I was only a teenager: I developed @ Dino Gaia, one of the most popular online French consumer games in the 2000s, registering a million visits every month. I've since built extensive technical hands-on and leadership experience across multiple sectors, including ride-hailing, fintech, and legaltech. I was most recently the VP of Engineering @ Doctrine before it got acquired.

Louis Lecat

I'm the founder & CEO @ Upstream. I was one of the early product people @ Asana, driving growth and adoption up to $100M ARR. I went on to lead the entire product team @ Algolia (YC W14) as their Head of Product through series B and C, assembling a team of 20+ talented product builders, while growing ARR 2.5x to $100M+. Also worked @ AgilOne (acquired) and graduated from @ Stanford and @ Ecole des Ponts

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.