Founding Full-Stack / Platform Engineer

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

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