Rebolt Builds Multi-Agent AI Software Systems and Opens Founding Engineering Hiring

Rebolt, a San Francisco-based software startup backed by Y Combinator (W25), is expanding its team to build tailor-made AI software and automated agent workflows on top of existing enterprise systems. Founded in 2025, the three-person company raised $500,000 in Seed funding to enable users to create internal applications and manage multi-agent workflows by conversing with AI.

Enterprise Software Expertise from Salesforce and Stack AI Alumni

Rebolt was founded by Celia Manzano and Javier Sanchez, who met as engineering students at Universidad Politécnica de Madrid (UPM), where Manzano developed torque vectoring electronic control units and Sanchez led software engineering and LiDAR perception for UPM Racing.

Manzano, who holds a BS in Aerospace Engineering from UPM, previously worked as a cloud architect at Salesforce leading technical sales on key accounts ranging from $150,000 to $3 million. She also served as a solution engineer at Apryse focusing on document processing SDKs.

Sanchez, who serves as CTO, holds degrees in Computer Science and Telecommunications Engineering from UPM. He previously worked as a software engineer at Ubuntu before joining Stack AI (YC W23) as a founding engineer. At Stack AI, Sanchez helped steer core product development and scaled key engineering hires as the platform grew from seed to Series A and reached $2 million in annual recurring revenue.

Scaling Multi-Agent Infrastructure Across Five Founding Roles

Rebolt sits on top of customer backend infrastructure to deploy custom workflows and autonomous agents. The team is currently recruiting five founding engineers to build out its core engine, platform architecture, and client integration systems:

• Founding AI Engineer: Responsible for shipping production-ready multi-agent systems and creating tools for deploying scalable AI workflows. The role bridges research and engineering to design, evaluate, and optimize core AI systems that empower end users to build internal applications.
• Founding Backend Software Engineer: Focuses on architecting and shipping core backend services and data models that power multi-agent AI workflows. The engineer works with Python and TypeScript to scale the platform's execution engine.
• Founding Forward Deployed Engineer: Embeds directly into client workflows to identify automation opportunities and build custom integrations connecting Rebolt to CRMs, databases, and freight management systems, while automating phone, email, and messaging systems.
• Founding Frontend/Design Engineer: Designs user experiences and implements UI interactions using React, Tailwind, and Next.js while establishing and maintaining a design system and prototyping new product features.
• Founding Growth Engineer: Focuses on technical strategy and revenue optimization by designing growth experiments and building features like billing systems and onboarding flows across the product funnel.

All open positions offer salary ranges between $60,000 and $180,000 USD and accommodate remote work across select international hubs alongside San Francisco.

Open Roles at Rebolt

See all open roles at Rebolt