Principal AI Software Developer

Overview The Senior Principal Full Stack AI Engineer serves as a senior, hands-on full-stack AI engineer, leading the design, development, and delivery of large-scale mission-critical AI systems supporting the AIR Platform. This role combines senior technical leadership, hands-on expertise in AI and LLM systems built on a modern cloud stack (Next.js, Terraform, GitHub, AWS, Azure, and GCP), and ownership of enterprise architecture, governance, and innovation. This is a full-time position under Nexus for Pyramid Systems. Responsibilities Serve as a senior technical lead, defining AI and application architecture for the AIR Platform in partnership with and under the direction of the Director Establish enterprise modernization roadmaps aligned to mission outcomes, compliance, and scalability Lead architecture for distributed, cloud-native, and hybrid AI systems Define and enforce reference architectures, standards, and reusable frameworks Drive cross-program technical decision-making to ensure interoperability, security, and long-term sustainability Lead design, development, and deployment of advanced AI solutions, including large language models (LLMs) and foundation models, Retriev…