Koah
AI & Machine LearningDirect Ashby career site

Software Engineer - Product

Location
San Francisco, CA · On-site
Level
Mid-level
Listed
30 days ago

Skills & highlights for this role

  • Ruby on Rails
  • React
  • TypeScript

Also useful

  • PostgreSQL
  • ClickHouse
  • Kafka
  • Terraform
  • AWS

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: iOS, Android, Web, Flutter, React Native

In this role, you will

  • 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.

You might thrive in this role if you

  • 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

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 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.

Read the original posting

From Koah's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Software Engineer - Product job at Koah located?

This Software Engineer - Product position at Koah is located in San Francisco, CA (On-site). Always check Koah's application page for specific state eligibility or relocation policies.

What qualifications are required for Software Engineer - Product at Koah?

For the Software Engineer - Product role, Koah highlights experience with Ruby on Rails, React, TypeScript. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Software Engineer - Product position at Koah?

This listing links directly to Koah's Ashby application page. You can apply directly on Koah's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.

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