Senior Backend Engineer

We are looking for a senior engineer to join our team in San Francisco. As one of the founding members of our team, you will play a critical role in shaping our product and engineering culture. What you will do - Build Finn, the first AI-powered wealth manager. - Design and own the core backend infrastructure, including our multi-agent LLM architecture that powers financial reasoning, simulations, and user interactions. - Work with massive financial datasets at unprecedented scale, inventing systems that let LLMs interpret, evolve, and act on billions of real-world data points. - Push the boundaries of what AI can do in money management, from autonomous financial planning to market-aware agentic systems. - Collaborate closely with frontend, design, and the founding team to craft world-class user experiences that feel magical. What you are good at - Have 5+ years of experience as a backend engineer developing and deploying production-level backend systems - Experience with LLM models and AI-driven systems - either from past projects or a strong willingness to work on LLM-powered applications - Fluent in Node/Typescript, Python, Postgres, and AWS - Proven ability to architect complex distributed system with experience in services like Kafka, Redis, Kubernetes - Experience with performance and optimization problems and eagerness to both diagnose and prevent these problems - Comfortable taking ownership from start to finish, build new systems from scratch, and iterate quickly in a startup environment. If you want to build systems that rethink how people interact with money and solve problems that have never been solved before, we would love to talk.