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Amadeus Search

Founding Full-Stack / Platform Engineer

Amadeus Search, San Francisco, California, United States, 94199

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Role:

Founding Full-Stack / Platform Engineer Employment Type:

Full-time, On-site Location:

San Francisco, CA Compensation:

$220k - $280k base + competitive equity Visa:

Not available

Company Overview

Kaizen builds

reinforcement learning environments

that allow AI to train from its own experiences instead of relying solely on human-labeled data - a critical step toward autonomous AI and AGI. In just

5 months , they've gained traction with

frontier AI labs

that depend on their platform for high-volume AI training. Role Summary

Employee #4, responsible for building

developer tools, internal platforms, and scalable AI training infrastructure . You'll create reusable systems enabling rapid development and deployment, directly supporting

frontier AI research

and

autonomous agentic AI systems . Key Responsibilities Develop critical infrastructure, internal tools, and

CI/CD pipelines Build React frontends + Python backends for platform tools Deploy

scalable AI training systems

on AWS/GCP Design

reusable components

and automation to eliminate repetitive dev work Establish engineering best practices for scaling from

3 ? 30+ engineers Ideal Candidate Profile 2-5 years platform engineering experience building tools that speed up development Full-stack skills with

React.js ,

TypeScript , and Python ( FastAPI ,

Django , or

Flask ) DevOps knowledge (service configuration, CI/CD, monitoring, deployment automation) AWS/GCP deployment for production systems Experience at a company of 30+ employees where tools were used widely Bonus: public portfolio, Docker, microservices, open-source work, top CS school background Culture & Work Style In-person in SF (employee #4 in a growing AI startup) Direct impact on AGI infrastructure Close collaboration with

frontier AI labs High ownership, greenfield architecture, and long-term platform vision