Senior Fullstack Engineer, Mortgage Fulfillment AI

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Fullstack Engineer, Mortgage Fulfillment AI based in the United States. The Senior Fullstack Engineer will design, build, and operate production-grade AI agent systems that transform mortgage fulfillment through intelligent automation. This hands-on engineering role focuses on developing multi-step AI agents, robust evaluation frameworks, and reliable infrastructure that streamlines the mortgage journey from application to funding. You will tackle complex technical challenges involving large language models, workflow orchestration, third-party integrations, and production reliability in a regulated environment. Working closely with engineering, platform, and mortgage operations teams, you will turn ambiguous requirements into scalable solutions that reduce manual work and accelerate loan processing. You will establish rigorous standards for testing, observability, and system performance while continuously improving AI accuracy and reliability. This is an opportunity to shape the practical application of agentic AI in financial services within a collaborative, remote-first engineering environment.