Six Figure Work

Software Engineer, Early Career

Koah

Company websitekoahlabs.com (Koah, opens in new tab)

Base salary $120K  to $160K

Employer-published annual base salary, USD. Advertised base range in San Francisco, CA

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You apply on the employer's own site. Six Figure Work does not handle applications.

  • LocationSan Francisco, CA
  • WorkplaceOn-site
  • Status at last checkSource accepting applications when checked
  • Last checked (1 h ago) · observed since

About this job

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: iOS, Android, Web, Flutter, React Native

In this role, you will:

  • Help shape core ad experiences and shape how people see ads across our ad network

  • Tackle meaningful challenges with increasing autonomy, crafting code that millions of users will experience

  • Take ownership of projects that matter, make critical technical decisions, and contribute your unique perspective to our product vision.

  • Work alongside passionate experts across design, product, and data to create the advertising experience in this new era

You might thrive in this role if you:

  • Enjoy proactively communicating with both technical and non-technical stakeholders

  • 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

Want to stand out?

We receive a high volume of applications, and we want to give everyone a fair chance to show us what they can do beyond their resume.

We’ve put together a short, optional take-home assessment. It’s not required to apply, but completing it is highly encouraged and will help us prioritize reviewing your application.

Complete the optional take-home assessment

Source: Koah on Ashby · View original posting (opens in new tab)

Pay in context

This role's base floor ($120,000) is above 5% of the 4,298 Software Engineering roles in California listed on this site; 46 others list the same floor. Their median floor is $176,000; the middle half runs from $149,100 to $202,000.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 7, 2026.

This range next to 5 other live Koah roles with the nearest advertised base floor
Chart as a table
This range next to 5 other live Koah roles with the nearest advertised base floor
RolePublished base
Software Engineer, Early Career (this listing)$120K - $160K
Software Engineer - Product$180K - $250K
Software Engineer - Backend$180K - $250K
Software Engineer - Platform$180K - $250K
Data Scientist$180K - $250K
Applied Scientist$200K - $300K

Same $100K to $400K scale as every card. All Koah roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-08-18
Where this pay comes from

Location as the employer wrote it: San Francisco

USD 120,000 – 160,000 · 1 YEAR · Salary

Method
Structured pay field published by the employer
Checked
Rule set
us-base-v2

The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.