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Sail Research

Open-source AI inference for autonomous agents

Member of Technical Staff - Monetization

Backend EngineeringUpdated on Nov 9
Full-timeSan Francisco, CA, USANo salary listed

About the Job

Requirements

  • Familiarity with usage-based billing and payment systems, or interest in learning them.
  • Experience owning high-throughput, reliable production systems.
  • Solid distributed systems fundamentals.
  • Product sense, with experience and enthusiasm for building user-friendly products and experiences.
  • Interest in compute and inference economics.
  • Eagerness to work with agents while maintaining healthy skepticism and critically evaluating high-level design decisions and system components.
  • Strong interpersonal and technical communication.

Responsibilities

  • Design and operate billing for all current and future Sail offerings, spanning self-serve customers, enterprise commitments, and routing partners such as OpenRouter.
  • Develop new ways to price and package AI infrastructure, including novel billing features such as Supercache.
  • Build observability for customer spend and company revenue, connect revenue to compute costs, and create tools and user experiences that help customers monitor usage and maximize cost efficiency.
  • Build and maintain organization identity, permissioning, authentication, and abuse prevention.

About the Company

Sail Research

Open-source AI inference for autonomous agents

Sail Research provides AI inference services for open-source models at scale to power autonomous background agents. It offers a private-beta OpenAI-compatible API that supports open models like Deepseek, Kimi, and Qwen, plus fine-tuned versions, enabling token-serving for customers. It handles end-to-end work, including CUDA GPU optimization, tweaking inference engines, and distributing workloads across multiple providers with spot compute to reduce costs. Its goal is to help autonomous agents make meaningful independent progress on complex problems by delivering reliable, scalable, and affordable open-model inference through an OpenAI-compatible API.

Company size
11-50
Company stage
Series A
Total funding
$80M
Headquarters
San Francisco, CA
Founded
2026

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