Software Engineer - Product
At a glance
Mid-level Software Engineering role at Koah. San Francisco · full-time · $180,000–$250,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Shape the engineering foundation and lead technical initiatives across the stack, helping set product direction
- Improve matching algorithms or build user experiences for a large audience
- Work with data and go-to-market partners to steer products toward customer needs
- Use experiments and user behavior data to guide product decisions
What you bring
- You have built and scaled production-ready systems and user experiences
- You can work across the stack, take on unfamiliar problems and navigate ambiguity
Who this fits
This role suits an engineer who wants end-to-end ownership, broad technical work and a voice in product and technical decisions. You’ll work in person in San Francisco and collaborate closely through fast feedback loops.
From the employer
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 the foundation of our engineering organization
Lead initiatives across the stack, with high agency in product direction and technical design
Dive deeply into technically challenging and rewarding work, whether it is optimizing our matching algorithms or creating world class experiences that reach millions of users
Partner with cross functional stakeholders in data and GTM to drive product direction that our customers need
Embrace an experimentation mindset - we are constantly trying to learn about how users are interacting with AI-native products, and use data from these experiments to drive our work.
You might thrive in this role if you:
Have experience building and scaling production quality systems and experiences
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
Have been a startup founder or an early-stage engineer
Software Engineering work from LinkedIn, X, Reddit and Upwork, in one list.
Each morning you get everything that fits, strongest first.
Software Engineering$180k+
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