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Mesmer

The operating system for the 100x Engineering Team

Y CombinatorSpring 2025ActiveB2BEngineering, Product and DesignArtificial IntelligenceSaaSProductivityTeam Collaboration

What they do

Problem

Engineering teams struggle to get consistent, scalable productivity gains from AI agents and lack visibility into bottlenecks and execution quality.

Solution

Mesmer provides an operating system platform that helps teams deploy and manage agentic workflows across engineering to speed delivery, improve quality, and reduce bureaucracy.

Who it's for

Founders, CTOs, and engineering teams adopting AI agents to accelerate software development.

Founders

João de Paula
Founder

Co-Founder and CEO at Mesmer (P25), the operating system for agentic engineering teams. Previously cofounder at Origin Financial ($400M) and Glio (S13), first LatAm company to go through YC. Serial entrepreneur, self-taught engineer, and product leader with 15 years of experience making something people love.

Sergio Oliveira Bergmann
Founder

Co-founder and VP of Engineering at Mesmer, where we're building AI-powered agents to help tech founders overcome the coordination challenges that arise as their startups scale. With over 15 years of engineering leadership in fintech and digital banking, I've spent my career developing products that transform complex challenges into seamless user experiences. I'm focused on leveraging technology to empower founders, simplify growth, and amplify innovation.

Lucas Silva
Founder

Cofounder and CTO at Mesmer (X25). Previously cofounder at Qual Farmácia (2018) and Director of Engineering at Origin Financial. 18 years experience as engineering leader. Passionate about building products that matter

Company timeline

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