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Koah Labs

Software Engineer - Platform

San Francisco · New York

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hirly's read of this role

Role family
Engineering
Seniority
Mid level
Stated salary
$180,000 – $250,000 per year
Country
US
Work mode
On-site / unstated
First seen by hirly
1 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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.

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

The Role

We are looking for strong engineers with experience and interest in designing, building, and maintaining the infrastructure that make up our adtech platform.

You might be a fit if

You have maintained or operated serious systems in production at scale

You are detail-oriented and care about performance

You enjoy diving deep into problems and owning the platform layer that powers our product

You enjoy experimentation, measuring, and creating reliable systems

You want to own a breadth of systems

Original posting on Koah Labs's site ↗

Listed on hirly, a job board. hirly is not the employer: Koah Labs is hiring for this role.

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