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Applied Scientist

United States, San Francisco 200000.00 - 300000.00 USD / Year · Job Posted February 18, 2026
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Job Description

At Koah Labs, we believe in rewarding world-class talent with highly competitive compensation. Our approach ensures that every team member is recognized and incentivized for their impact with a comprehensive package that includes a strong base salary, meaningful equity, and top-tier benefits. We are committed to providing an environment where our people are empowered to do their best work, knowing their skills and contributions are valued and rewarded accordingly. 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 $5.7M 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.

Job Responsibility

  • 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

Requirements

  • Advanced degree in Physics, Computer Science, Mathematics, Statistics, Engineering, or a related field
  • Enjoy identifying and owning challenging problems, forming testable hypotheses, and conducting impactful research to drive significant business impact
  • Relentless focus on continuous learning and making an impact with an ability to question the status quo
  • Strong mathematical and statistical modeling skills
  • Enjoy communicating conclusions to both technical and non-technical audiences alike

What we offer

  • Offers Equity
  • Top-tier benefits

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