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BootLoop builds a firmware agent that tests code with scopes and debug probes

BootLoop, a Y Combinator Summer 2025 startup founded by Noah Pacik-Nelson and Chris Markus, is building an AI agent that writes and tests firmware. The company says the agent reads datasheets and schematics, then validates code on customer boards with oscilloscopes, logic analyzers and debug probes. In pilots, its own engineers run the agent and a person reviews every line.

Open original source ycombinator.com · Y Combinator

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Briefing

In the pilot program, BootLoop's own engineers work on one firmware problem for a customer as forward-deployed engineers, using the agent internally. Afterward the customer gets a custom version of the agent for later work. The launch post also says the agent writes in the customer's style and proprietary libraries, tests in simulation as well as on hardware, and is the first ITAR-capable coding agent.

According to the YC page, Chris Markus, the CTO, was lead software engineer for SpaceX's Starship booster catch system and built firmware for its Raptor engine. Both founders worked on an FDA-authorized ventilator. The page lists a team of three and an opening for a founding embedded engineer. The launch post links a video that we have not watched.

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