You'll serve as a technical architect within our distributed Rails 8 ecosystem, designing and building applications that seamlessly blend traditional web technologies with generative AI. Working closely with our CTO, you'll oversee the full lifecycle of features—from conception through production—across our portfolio of financial platforms that collectively reach tens of millions of investors. Your responsibilities span designing microservices that intelligently leverage language models for data processing and user engagement, managing state through AI-assisted patterns, and establishing best practices for system reliability and scalability. You'll mentor team members on emerging AI integration patterns, make critical decisions on technology selection, and drive architectural improvements that balance shipping velocity with code quality. The environment operates on Shape-Up methodology, emphasizing realistic project scoping and on-time delivery without hero culture. Candidates should demonstrate 8+ years of production Rails experience, proven expertise integrating third-party APIs and LLM services, and a track record of building systems serving millions of users. Experience with containerization, database optimization, and modern JavaScript frameworks is essential. Your ideal background includes shipping consumer-facing fintech products, though domain expertise can be developed on the job.