Senior Software Engineer

Responsibilities

• Perform full-stack product work including React interfaces, APIs, and backend services
• Develop MCP tools and integrations to extend agent capabilities
• Build agent loops and orchestration logic
• Engineer system prompts as high-quality engineering artifacts
• Conduct evals and experiments to improve reliability in real usage
• Utilize GROQ to provide the agent with deep understanding of structured content
• Shape the product direction in collaboration with product and design teams

Requirements

• Strong proficiency in TypeScript and React across the full stack
• Proven experience shipping LLM-based systems in production
• Systems-thinking approach to user intent, edge cases, and failure modes
• Strong technical writing skills for engineering precise system prompts
• Comfort working with probabilistic systems and statistical evaluation
• Experience or curiosity regarding MCP, tool-use patterns, and agent architectures

About the Company

Sanity is an AI-powered content operating system that allows teams to model, create, and automate content. Used by companies like Figma, Anthropic, and Riot Games, Sanity treats content as data to provide a single source of truth that is seamlessly adapted across any channel.