Staff ML Engineer — Lead Production-Grade AI Systems

A1 is building a proactive AI chat app for everyday users to bring intelligence to conversations, errands, organising and workflows. This role leads the execution layer of A1’s intelligence, translating research direction into reliable, scalable ML systems.

You will own end-to-end ML system execution, fine-tune models, and design scalable inference while collaborating with engineering teams. This position sits at the intersection of research, infrastructure and product, ensuring models are