This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff AI Marketing Systems Engineer based in United States. This is a high-impact, hands-on engineering role focused on building AI-native systems that transform how Sales and Marketing teams work. You’ll design, build, and operate production-grade agent workflows that surface intelligence, automate content creation, and respond to real-time deal and campaign signals. The role spans LLMs, retrieval, tool calling, agent orchestration, data platforms, and enterprise integrations. You’ll work directly with sellers, marketers, and cross-functional technical teams to understand workflows and turn them into reliable AI-powered products. A major focus will be building systems that are secure, permission-aware, observable, evaluable, and genuinely useful in day-to-day work. You’ll have significant autonomy to shape architecture, product direction, technical standards, and the roadmap from prototype through production. This is an opportunity to help define how AI becomes a trusted operating layer for modern go-to-market organizations.