Software Engineer - Product

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 $5.7M 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:
  Postgre
  
  SQL, Click House, Redis, Kafka, Python
• Core Application:
  Ruby on Rails, React, Type Script
• SDKs:
  Flutter, React Native, Android, iOS

• Help shape the foundation of our engineering organization
• Lead initiatives across the stack, with high agency in product direction and technical design
• Dive deeply into technically challenging and rewarding work, whether it is optimizing our matching algorithms or creating world class experiences that reach millions of users
• Partner with cross functional stakeholders in data and GTM to drive product direction that our customers need
• Embrace an experimentation mindset - we are constantly trying to learn about how users are interacting with AI-native products, and use data from these experiments to drive our work.

• Have experience building and scaling production quality systems and experiences
• Are comfortable working across the stack, tackling new tasks out of your comfort zone, and can handle ambiguity
• Work well in-person and enjoy fast feedback loops
• Enjoy breaking down problems and testing your hypotheses
• Get excited about end-to-end ownership within high agency environments
• Have been a startup founder or an early-stage engineer