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[ARTICLE · art-111723] src=ycombinator.com ↗ pub= topic=ai-agents verified=true sentiment=· neutral

Proliferate (YC S25) Is Hiring

Proliferate, a Y Combinator S25-backed startup building an open-source, self-hostable AI IDE for agent collaboration, is hiring founding engineers. Founder Pablo, who previously built enterprise AI search at Onyx (YC W24), says he has turned down eight figures in acquisition offers to continue the venture. The company is backed by True Ventures, Pear VC, and 50+ YC founders, and operates in person in SoMa, San Francisco.

read1 min views1 publishedAug 26, 2026
Proliferate (YC S25) Is Hiring
Image: Ycombinator (auto-discovered)

Do your life's work with agents

About Proliferate

Proliferate is the open-source, self-hostable AI IDE where you can collaborate with agents as a team.

Longer term, we are building the substrate through which companies deploy agents for real work. We believe the future of all work is companies staffed by thousands of agents and we’re building the platform that manages them.

We’re early, the product still has rough edges, and we’re oriented around large goals. We are backed by True Ventures, Pear VC, and 50+ YC founders- and we work together in person in SoMa, San Francisco.

About the founder

I’m Pablo! I finished my bachelor’s at 17, ran a consulting company at 18, completed my master’s in AI at 19, and joined Onyx (YC W24) as engineer #1. I spent a year building enterprise AI search before starting Proliferate.

I started Proliferate because I believe this is the most ambitious thing I could possibly be working on, and I’ve turned down eight figures in acquisition offers to keep building it.

The role

We are hiring exceptional founding engineers. You will be one of the first engineers at Proliferate, working side by side with the founder and early team, and owning major parts of the product end to end.

You might, one week to the next:

How we work

Benefits / company culture

We are intentional about our long term health and consider performance core to the company culture- we work according to the following.

You might be a great fit if

Interview process

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