Backend/Platform Software Engineer

Anthropic is seeking backend/platform software engineers to join their Product Foundations organization, focusing on building foundational primitives that accelerate product development across the company. The role spans multiple teams including Product Platform, Accounts Platform, Billing Platform, and Apps Platform, each responsible for critical infrastructure components.

The Product Platform team develops core components like rate limiting, LLM sampling, and multimodal processing. The Accounts Platform team handles identity and authentication infrastructure, while the Billing Platform team manages the core billing infrastructure powering all Anthropic's products. The Apps Platform team builds primitives for AI-first product development for Claude.ai.

As a Backend/Platform Software Engineer, you'll work on scalable distributed systems, collaborate with product teams, and contribute to Anthropic's mission of creating safe and beneficial AI systems. The company values empirical science approaches to AI research and maintains a highly collaborative environment with frequent research discussions.

Anthropic offers a competitive compensation package ranging from $320,000 to $405,000 USD annually, along with benefits including equity donation matching, generous vacation and parental leave, and flexible working hours. The position requires at least 25% time in their San Francisco office, and visa sponsorship is available for qualified candidates.

The ideal candidate will have 6+ years of experience, strong coding skills, and the ability to work effectively in a fast-paced environment. Experience with NLP, ML models, REST APIs, and React is valuable. Anthropic encourages applications from diverse candidates and values representation in their team, recognizing the significant social and ethical implications of their AI systems.