Member of Technical Staff, AI Developer Experience

As an AI Developer Experience Engineer at Crosby, you'll play a critical role in building the internal systems that enable our team to develop, evaluate, and ship AI features quickly and reliably. You’ll focus on improving the developer experience around LLMs, data, and experimentation — creating tools and infrastructure that accelerate iteration while maintaining quality.

You’ll partner closely with engineers, data scientists, and researchers to streamline workflows across prompting, evaluation, fine-tuning, and deployment. This role is for someone who is obsessed with leverage — building systems that make other engineers dramatically more productive.

• Build AI developer tooling: Design and implement internal tools for prompt management, evaluation, experimentation, and model iteration.
• Improve iteration speed: Create systems that enable rapid testing, debugging, and comparison of model outputs across different approaches.