Summer 2026 Software Engineering Intern

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.

Interning at Koah means you’ll help shape 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

Example Summer Internship Projects

• Build an internal tool to make our engineering and customer success processes more efficient. Work with the team to understand pain points, prototype solutions, and ship something that saves time every day.

• Analyze historical click and conversion data to identify patterns, then propose new features for our ad matching system which leverage these insights.

• Identify front-end product improvements, propose solutions, then build, test, and ship impactful changes.

Timeline

• We intend to make hiring decisions in February and March 2026.

• We expect candidates to be available for an approximately 10-week internship starting in the late spring or early summer 2026.

You might be a fit if

• You are pursuing a degree in Physics, Computer Science, Mathematics, Statistics, Engineering, or a related field

• You enjoy identifying and owning challenging problems, forming testable hypotheses, and conducting impactful research to drive significant business impact

• You have a relentless focus on continuous learning and making an impact with an ability to question the status quo

• You enjoy communicating conclusions to both technical and non-technical audiences