Founding AI Engineer jobs in United States
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Semble AI (YC F25) · 1 month ago

Founding AI Engineer

positionSan Francisco, CA
timeFull-time
remoteOnsite
senioritySenior Level
money$150K/yr - $250K/yr

Semble AI is a startup focused on transforming the building-system design industry by creating AI agents that automate the design process. As a founding AI Engineer, you will work closely with the founders to develop systems that enhance building design efficiency and compliance with evolving codes.

Artificial Intelligence (AI)Public SafetySaaSSoftware

Responsibilities

Work directly with the founders to own and build systems such as vision pipelines that segment rooms, walls, and architectural elements from noisy PDFs/CAD files
Develop LLM + RAG workflows that interpret building codes and produce compliant designs
Build full-stack features across our React/Node/Postgres platform

Qualification

Machine LearningFull-stack EngineeringAI AgentsTypescriptPythonVision ModelsPostgreSQLReliable SystemsFast-paced EnvironmentTeam Collaboration

Required

Strong experience in ML (vision AND LLMs)
Experience in backend development
Experience in building AI agents
Experience in full-stack engineering
Ability to thrive in fast-moving environments
Passion for shipping end-to-end solutions
Commitment to building reliable, production-grade AI systems
Desire to be early at a YC startup and influence the company's trajectory

Company

Semble AI (YC F25)

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AI Design for the Future of Building.
dateFounded in 2025
location
San Francisco, California, USA
people-size2-10 employees
web-link
https://sembleai.com

Funding

Current Stage
Early Stage
Total Funding
$0.5M
Key Investors
Y Combinator
2025-12-03Pre Seed· $0.5M

Leadership Team

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Jonathan Tyshler
CEO
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Ethan Boyers
Co-Founder & CTO
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Company data provided by crunchbase