Koah
Enterprise SaaSDirect Ashby career site

Software Engineer - Platform

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

Skills & highlights for this role

  • Terraform
  • AWS
  • Kubernetes
  • production systems at scale
  • performance optimization

Also useful

  • ClickHouse
  • Kafka
  • Ruby on Rails

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

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

Rolev.ai is a job search and application tool for US job seekers. For this Software Engineer - Platform role at Koah, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Start free with 5 tailored applications a monthChrome extensionFor AI assistantsPricingHow Rolev.ai comparesApplication guides

Similar roles

All Software Developer jobs

Common questions

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

This Software Engineer - Platform 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 - Platform at Koah?

For the Software Engineer - Platform role, Koah highlights experience with Terraform, AWS, Kubernetes, production systems at scale, performance optimization. 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 - Platform 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.

Tailor resume & applyCompany site