Software Engineer - Data / ML jobs in United States
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Koah · 1 month ago

Software Engineer - Data / ML

positionUnited States
timeFull-time
remoteRemote
seniorityEntry, Mid Level
money$180K/yr - $300K/yr

Koah Labs is building an ad network for AI-native products, aiming to help publishers monetize and advertisers reach the right audience. The role involves shipping code that shapes the company while focusing on performance optimization and data-driven decision-making.

AdvertisingAdvertising PlatformsArtificial Intelligence (AI)Sales

Responsibilities

Build data pipelines using Debezium to stream real-time changes from PostgreSQL to our OLAP database for analytics workloads
Reduce p99 latency in critical write paths by optimizing SQL query execution plans, implementing robust retry mechanisms, and enforcing strict timeouts for third-party services
Tune conversion and clickthrough rate metrics in our core ad matcher from analyzing impression and click data
Enhance ad matching algorithms using regression analysis to identify data patterns and develop hypotheses for new predictive features that improve conversion likelihood
Set up experiment tracking and observability with logs and custom metrics that make it easy for us to understand why certain ads are chosen

Qualification

PythonPostgreSQLAWSRuby on RailsReactTypeScriptTerraformDebuggingPerformance OptimizationData AnalysisExperimentation

Required

Experience with data pipelines and streaming technologies such as Debezium
Proficiency in SQL and optimizing query execution plans
Experience with data analysis and regression analysis
Familiarity with experiment tracking and observability tools
Strong debugging and performance optimization skills
Detail-oriented with a data-driven approach

Preferred

Experience with PostgreSQL, ClickHouse, Redis, and Kafka
Familiarity with Ruby on Rails, React, and TypeScript
Experience with cloud infrastructure such as AWS and Terraform
Knowledge of ad matching algorithms and metrics

Company

Koah

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Koah is the GenAI Ad Network: Publishers can monetize AI chat without compromising UX — and advertisers can reach high-intent users with 1:1 engagement inside GenAI environments.
dateFounded in 2024
location
San Francisco, California, USA
people-size2-10 employees
web-link
https://www.koahlabs.com/

Funding

Current Stage
Early Stage
Total Funding
$5M
Key Investors
Forerunner
2025-09-07Seed· $5M
2024-01-01Pre Seed
Company data provided by crunchbase