Backend Engineer – Scalable Ad Tech Systems

Koah; San Francisco (CA); On-site; USD 80,000 - 120,000; Full time

Job summary

A growing tech startup in San Francisco is seeking candidates passionate about building AI-native products in the ad tech space. Ideal candidates should have a strong background in performance optimization and software development, particularly with technologies such as Ruby on Rails and React. Join a small, fast-paced team that values creativity, trust, and the craft of coding while contributing to innovative projects shaping the ad ecosystem.

Qualifications

• Experience with debugging and optimizing performance in software applications.
• Attention to detail with a track record of creating reliable abstractions.
• Interest in experimentation and performance measurement.

Responsibilities

• Build scalable data models for ad requests.
• Design systems for new ad formats and engagement tracking.
• Develop low-latency frequency capping systems.

Skills

Debugging and performance optimization

Detail-oriented

Experimentation and measuring

Tools

Ruby on Rails

React

TypeScript

PostgreSQL

AWS

Job description

A growing tech startup in San Francisco is seeking candidates passionate about building AI-native products in the ad tech space. Ideal candidates should have a strong background in performance optimization and software development, particularly with technologies such as Ruby on Rails and React. Join a small, fast-paced team that values creativity, trust, and the craft of coding while contributing to innovative projects shaping the ad ecosystem.