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Software Engineer - Platform

Koah Labs

New York, NYFull-time$180–250K/yrPosted 7mo agoVerified open 1w ago
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At a glance

Compensation
$180–250K/yr
Location
New York, NY
Schedule
Full-time
Work Authorization
Not specified

Job overview

Koah Labs is hiring a Software Engineer - Platform. Koah Labs builds an AI‑native ad network to help publishers monetize and advertisers reach audiences while preserving speed, UX, and privacy, operating as a small, fast‑growing team in San Francisco.

Key focus areas include Maintain or operate serious systems in production at scale, Be detail‑oriented and care about performance, and Dive deep into problems and own the platform layer that powers the product.

Preferred (not required): Terraform, AWS, Loki, and Grafana.

Skills & qualifications

RequiredNice to have

Skills

TerraformAWSLokiGrafanaTempoMimirTailscaleCloudflarePostgreSQLClickHouseRedisKafkaPythonRuby on RailsReactTypeScriptFlutterAndroidiOSDesigning InfrastructureBuilding InfrastructureMaintaining InfrastructureDetail-OrientedPerformance FocusProblem SolvingA/B TestingMeasurementCreating Reliable SystemsSystem Ownership

Qualifications

Experience Operating Systems in Production at Scale

Full job description

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

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