Software Engineer, Agent

Sierra is seeking a Software Engineer, Agent to design and deliver production-grade AI agents for customer-facing applications. The role involves full ownership of the agent development lifecycle from pilot to deployment, working directly with large enterprises and startups to build scalable AI systems. You will also shape the future of Sierra's platform by surfacing unmet needs and collaborating with research and product teams.

Required: experience building and scaling production systems, strong problem-solving in ambiguous environments, a builder mindset, comfort working directly with customers, and excellent communication skills. Nice-to-have: experience with AI/LLM systems in production, founder or founding engineer background, familiarity with AI agent tools (eval frameworks, RAG, prompt engineering), and proficiency in React, TypeScript, or Go.