Senior AI Engineer - Model Selection and Orchestration

• Senior AI Engineer with experience building production AI systems, model orchestration, tool calling, retrieval, and modern software engineering practices to build reliable AI capabilities across customer-facing and internal experiences.
• Hands-on engineer who owns components of the decision and orchestration layer that determines when agents should use a model, tool, retrieval system, or deterministic workflow, balancing quality, safety, latency, reliability, and cost.
• Remote-first opportunity for US-based employees with the option to work in-person out of our Manhattan office.

Start your adventure with Zip

Become a part of Zip's Engineering team and take on exciting challenges at the intersection of AI, software engineering, and financial technology. At Zip, our engineers build systems that move real money and serve millions of customers, making reliability, security, and sound engineering judgment fundamental to how we build.

We are seeking a Senior AI Engineer to help turn rapidly evolving AI capabilities into dependable customer experiences and useful tools for our teams. You’ll work within our AI Platforms team, building shared capabilities that support Zia, our customer-facing AI experience, as well as internal agents and AI-powered workflows across Zip.

You’ll play a hands-on role in d