Unknown Company

Fastapi Backend co-founder

bellevue, wa • Posted 4 days ago
Remote Full Time IT & Technology

2 days ago Be among the first 25 applicants

Technical Co-Founder Opportunity — Shopint.AI

We are aiming for Y Combinator. We’re building with a YC mindset: high ownership, fast iteration, and strong technical foundations.

About Shopint

Shopint is a decision intelligence platform that helps people and businesses understand large volumes of publicly available customer feedback. We analyze public reviews to surface recurring product issues and reliability signals, turning noisy information into clear, neutral insights — without tracking users.

Our long-term goal is to build a neutral decision‑intelligence layer that can support both human decision‑making today and machine reasoning in the future. We’re building carefully, but moving fast. Shopint is currently in MVP/demo B2C testing stage and we are intentionally validating fundamentals before any full B2C launch.

What You’ll Work On

  • Build and own the B2B backend infrastructure
  • Design and implement multi‑tenant APIs
  • Secure data pipelines and analytics endpoints
  • Enterprise‑ready foundations: auth, billing, usage tracking
  • Scale the system as customers and data grow

Must Have

  • 3+ years Python backend experience
  • Strong FastAPI experience
  • Security mindset (multi‑tenant isolation, input validation, SQL injection prevention)
  • Production experience (error handling, monitoring, scaling real systems)

Nice to Have

  • Stripe integration
  • Redis / caching / rate limiting
  • Background jobs (Celery, RQ, or similar)
  • AWS experience (ECS, RDS, S3)
  • Prior B2B SaaS experience

Who We’re Looking For

  • A co‑founder who: comfortable with early‑stage ambiguity, understands B2B SaaS fundamentals, wants real ownership, not just a job, and is aiming for YC / venture‑scale outcomes.

What You Get

  • Ownership of backend architecture and execution
  • Direct influence on product direction
  • A serious path toward YC and beyond

What We Do

  • AI‑powered analysis of common themes and patterns
  • Currently in early beta with active testing

B2B Vision

  • Retailers need aggregated product feedback insights
  • Brands want scalable sentiment understanding
  • Research teams need structured review intelligence
  • Shopint’s data pipeline is designed to support these needs

Location: Seattle preferred (remote‑friendly for the right partner)!!!

And this is a co‑founder opportunity. We’re looking for a long‑term technical partner who can move fast, think independently, and build at a YC‑level pace.

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