[İş Radarı](https://jobradar.live/) / [Jobs](https://jobradar.live/ilanlar) / Applied Scientist

Active
Hybrid
San Francisco, California, United States
Posted · 01.10.2025
Ashby (US)

# Applied Scientist

Koah

Who We Are
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.
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.
Our Stack
• 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
Example Projects
• Design efficient algorithms for real-time bidding systems, building upon the current pricing literature
• Create and productionize regression models to predict end conversions based on demographic, audience, and semantic data
• Apply privacy-preserving clustering methods to categorize conversational data to improve advertiser outreach
• Analyze and pore over data to find alpha that can improve the core ad matching system balancing publisher and advertiser outcomes
You might be a fit if
• You have an advanced degree in Physics, Computer Science, Mathematics, Statistics, Engineering, or a related field
• You enjoy identifying and owning challenging problems, forming testable hypotheses, and conducting impactful research to drive significant business impact
• You have a relentless focus on continuous learning and making an impact with an ability to question the status quo
• You have strong mathematical and statistical modeling skills
• You enjoy communicating conclusions to both technical and non-technical audiences alike

This job was verified from Ashby (US). Applications are completed on the original source.

[Apply on the original listing ↗](https://jobradar.live/ilan/f8e39cd2-af1f-4b76-8078-5ad346f9c333/git)

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