Upstream

The first inbox designed for humans and agents

Paris, France

7 employees

Pre-seed · $3M

About Upstream

Your inbox, handled for you. Upstream's agents sort the noise, draft replies in your exact voice, follow up at the right time, and do what you ask - like finding receipts or scheduling meetings - so you can fly through your inbox and have fun doing it.

Open positions (2)

Founding Product Engineer

Full-time

Paris, Île-de-France

$75k – $100k

Founding Mobile Engineer

Full-time

Paris, Île-de-France

$75k – $100k

Company details

Team Size7

LocationParis, France

Funding

Total raised

$3M

Last stage

Pre-seed

Investors

Y Combinator

Founders

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

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.

What happens next.

No applications, no recruiter spam. Just the intro.

Confirm the fit

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

I pitch you to the company

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

A meeting lands on your calendar

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