Staff Software Engineer, Full-Stack

ABOUT THE ROLE A well-funded, Series A/B–and-beyond AI fintech platform — now at Series D — is hiring a Staff Software Engineer, Full-Stack to help shape a cutting-edge AI product built on large language models (LLMs). Sitting within a 51–200 person Engineering team in New York City (on-site), you'll own major features across the stack, partner closely with Product and Customer Success, and push the boundaries of what AI-powered tooling can do for the financial services industry. This is a high-impact, high-autonomy role for an engineer who thrives in fast-moving environments and cares deeply about craft, scalability, and user experience. Visa sponsorship is not available for this role. WHAT YOU'LL DO - Shape product direction and own technical design for AI-powered features across the full stack. - Deliver major product features end-to-end, from design through production launch. - Build and maintain feedback loops with end users and the Customer Success team to continuously improve the product. - Architect scalable systems and implement robust, performant software components. - Ensure platform reliability, observability, and operational excellence for production services. - Collaborate with cross-functional engineers and domain experts to solve complex, ambiguous problems. - Iterate on UI/UX and product design to deliver experiences that delight users. WHAT WE'RE LOOKING FOR Must-haves: - 5+ years of industry experience in full-stack software engineering, delivering production-grade web applications. - Extensive experience with React and TypeScript for front-end development. - Proven experience deploying production applications with Python, Next.js, NestJS, Docker, AWS, and Tailwind CSS. - Hands-on experience adopting the latest framework features in production (e.g., React Server Components, streaming). - Experience collaborating with product, design, and domain experts to architect scalable systems in a fast-paced environment. - Bachelor's degree in Computer Science or equivalent practical experience. - Strong CS fundamentals, self-motivated owner mindset, and exceptional attention to detail. - Genuine enthusiasm for AI/LLM tooling and a demonstrated passion for early-stage or hyper-growth companies. Nice-to-haves: - Background as an early engineer at a hyper-growth startup. - Experience at a leading AI research institution or a world-class product organization. - UI/UX and product design sensibility. - Domain familiarity with financial services or fintech workflows. LOCATION This role is on-site in New York City, NY. Remote or hybrid arrangements are not available. Visa sponsorship is not offered.