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Rebolt

AI-Powered Company OS

Y CombinatorWinter 2025ActiveB2BEnterprise SoftwareAIAI Assistant

What they do

Problem

AI-Powered Company OS

Founders

Celia Manzano

Founder

Cofounder at Rebolt. Former cloud architect at Salesforce - leading technical sales on key accounts from $150k - $3M. Also worked as solution engineer at Apryse (SDK for document processing) and developed the torque vectoring ECU at UPM Racing (Formula SAE). UPM Aerospace Engineer BS

LinkedIn · X

Javier Sanchez

Founder

Cofounder at Rebolt. Prev Founding Engineer at Stack AI (YC W23) - Enterprise AI platform, where I steered and built core product features and brought key engineering hires from seed to series A ($2M ARR). Former Software Engineer at Ubuntu. Lead the software team and developed the LiDAR perception system for UPM Racing (Formula SAE). UPM BS CS and Telecom Engineering.

Open roles 5

Founding Growth Engineer

San Francisco, CA, US / Remote (Madrid, MD, ES; London, England, GB) · Full-time · $60K - $180K · 0.50% - 2.00%

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Founding Frontend/Design Engineer

San Francisco, CA, US / Remote (Barcelona, CT, ES; Madrid, MD, ES; London, England, GB) · Full-time · $60K - $180K · 0.50% - 2.00%

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Founding Forward Deployed Engineer

San Francisco, CA, US / Remote (London, England, GB; Madrid, MD, ES; Madrid, Community of Madrid, ES; Barcelona, CT, ES; Barcelona, Catalonia, ES) · Full-time · $60K - $180K · 0.50% - 2.00%

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Founding AI Engineer

San Francisco, CA, US / Remote (Madrid, MD, ES; Madrid, Community of Madrid, ES; Barcelona, CT, ES; Barcelona, Catalonia, ES; London, England, GB) · Full-time · $60K - $180K · 0.50% - 2.00%

Apply ↗

Founding Backend Software Engineer

San Francisco, CA, US / Remote · Full-time · $60K - $180K · 0.50% - 2.00%

Apply ↗