Japanese Language Lead — Voice AI QA & Data Governance

Cartesia seeks native-level Japanese language resources to lead end-to-end language work for voice AI. You will own annotation quality, audit data, monitor product performance, and run projects requiring deep linguistic expertise.

This ongoing contractor role fits someone who can operate independently across workstreams. The engagement expects roughly 40 hours per week with flexibility for US Pacific hours to sync with the team and real-time support.