Full Stack Engineer

About the Company

Kepler is the agent harness—the infrastructure layer that wraps around AI models to make their outputs reliable, traceable, and verifiable. We provide a trust layer for high-stakes industries like finance, ensuring every AI output is auditable and reproducible.

Responsibilities

• Build core systems that power Kepler's AI research platform
• Develop backend services that orchestrate AI workflows
• Build data pipelines that process billions of data points
• Own features end-to-end, from UI components to backend infrastructure
• Implement verification rules and provenance tagging for data extraction

Requirements

• 5+ years of experience building production software
• Strong proficiency in TypeScript and React
• Experience with backend development
• Understanding of distributed systems (concurrency, fault tolerance, idempotency)
• Experience building systems where correctness is critical (e.g., payments, data infra)

Preferred Qualifications

• Experience with Rust
• Experience building large-scale data infrastructure

Benefits

• 100% covered medical, dental, and vision insurance for employees and families
• HSA maxed by the company
• Unlimited PTO
• Daily lunch in office
• Development and learning budgets