Founding Engineer jobs in United States
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Contrario (YC W25) · 2 months ago

Founding Engineer

Contrario is a modern, AI-powered recruiting marketplace that connects elite startup recruiters with fast-growing companies. They are seeking a founding engineer to shape the technical foundation of the company by building AI-powered search and retrieval features across their full stack.

Artificial Intelligence (AI)B2BSaaS

Responsibilities

Build AI features from the ground up: Design and implement intelligent search, retrieval, and recommendation systems that power our core product
Own the full stack: Ship features end-to-end in Next.js, TypeScript, and Supabase -- from database schemas to user interfaces
Move fast: Launch features quickly, gather feedback, and iterate rapidly in a startup environment
Shape the culture: As engineering employee #1, you'll help define our engineering practices, team culture, and hiring bar

Qualification

Full-stack software engineeringTypeScriptNext.jsAI/ML conceptsPostgresUser experience focusIndependent operationThrives in ambiguity

Required

0-3 years of full-stack software engineering experience
Strong proficiency with TypeScript and modern web frameworks (Next.js)
Solid understanding of AI/ML concepts -- but you should be comfortable working with LLMs, embeddings, vector databases, and retrieval systems
Experience with databases and backend systems (Postgres/Supabase knowledge is valuable)
Product-minded engineer who cares deeply about user experience
Thrives in ambiguity and can operate independently

Company

Contrario (YC W25)

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Contrario is a recruiting marketplace powered by software and AI workflows, giving high-growth startups and enterprises access to high-quality candidates while streamlining every step of hiring.

Funding

Current Stage
Early Stage
Total Funding
$0.5M
Key Investors
Y Combinator
2025-03-12Pre Seed· $0.5M
Company data provided by crunchbase