Native ads powered by real-time intent matching — not borrowed from the last era. The monetization layer for AI apps. Backed by South Park Commons.
About the role
You are detail oriented and like to create good abstractions that others rely on You enjoy experimentation, measuring, and creating reliable systems
What they're looking for
- You like debugging and optimizing performance
- You are detail oriented and like to create good abstractions that others rely on
- You enjoy experimentation, measuring, and creating reliable systems
- You want ownership of foundational systems
- You enjoy working closely with product and data science to turn ambiguous problems into measurable outcomes
More about this role
Koah Labs is building the ad network to power the next generation of AI-native products. Our mission is to help publishers monetize and help advertisers reach the right audience — without compromising speed, UX, or privacy.
We’re a small, tight-knit team in San Francisco with backgrounds at X, Apple, Meta and early-stage startups. We’ve raised from top investors and are growing fast with real traction on both the publisher and advertiser sides of the marketplace.
Working at Koah means joining at the ground floor: you’ll ship code that shapes the company and the ecosystem we’re building. We move quickly, operate with high trust, and care deeply about craft.
Infra : Terraform, AWS, LGTM (Loki, Grafana, Tempo, Mimir), Tailscale, Cloudflare
Data : PostgreSQL, ClickHouse, Redis, Kafka, Python
Core Application : Ruby on Rails, React, TypeScript
SDKs : Flutter, React Native, Android, iOS
Build scalable data models that support multiple impressions for an ad request allowing us to align publisher and advertiser interests
Design abstractions that allow us to experiment and ship new formats that allow for a flexible way of tracking engagement events
Build a low-latency frequency capping...
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