Software Engineer: Backend & Infrastructure

About the role Your role, should you choose to join us, will be as an Infrastructure / Backend Engineer on our founding team. You're the right person for this role if you're excited to build not just robust systems, but help shape the technical backbone of a category-defining company from day one. You're a great fit if you're known for making infrastructure elegant, reliable, and secure — even under demanding workloads. You find energy in scaling systems that power intelligent agents, and you take pride in building foundations others can depend on. Your responsibilities will include: Designing and maintaining secure, scalable infrastructure for AI-powered agents in production Deploying and optimizing AI-heavy services with high availability and performance requirements Managing infrastructure as code, cloud environments, and CI/CD pipelines Implementing monitoring, observability, and alerting to ensure system reliability Contributing to infrastructure security and best practices You likely have: Experience deploying and productionizing ML or AI-heavy workloads Expertise in building secure, scalable systems on platforms like AWS, Azure, or GCP Deep knowledge of backend systems, networking, and container orchestration (e.g., Kubernetes) Familiarity with infrastructure security principles and compliance (e.g., SOC2) The mindset of an owner: proactive, hands-on, and driven to solve problems end-to-end Compensation The rare opportunity to join a formidable team to build an enduring company, in person, as a first 20 employee Competitive compensation Significant equity upside Medical / dental / vision This role is based in person in San Francisco, CA (not remote).