Research Scientist (Post-Training)

Our goal is an AI for voice conversations that feels like you're talking to a human. We’re building a duplex, speech-to-speech model with full developer control. MetaVoice is founded by: Sid, founding engineer at Wayve.ai ( $1B+ raised) We’re passionate about building products people truly love. Requirements and ExperiencePhD in ML or related field, with publications in top conferences 1+ years of experience in training LLM / diffusion / flow-matching on 1B+ param models OR SOTA speech models Experience with post-training data curation & supervised fine-tuning of pre-trained models. Experience designing & building evaluation workflows – automated or human-in-the-loop. [bonus] Early-stage startup experience. What we offerChange the world (when we succeed) Environment to do the best work of your life. Small team, great people. Opportunity to make cutting-edge research work from scratch for production scenarios. Work with 100+ TBs of data and 10B+ parameter models. CultureWe/'re an in-person team in San Francisco & love working together. It helps us learn from one another and make decisions quickly. We ship fast & obsess over making customers happy. We offer high autonomy, allowing everyone to do their best work. Significant equity as a founding team member $200K-$500K base Immigration support, we are immigrants ourselves Fully covered medical, dental, and vision insurance 401(k) Interview ProcessWe move with speed, and aim to go from first interview to offer within a week. Vibe check (30 mins): chat with one of the founders about the vision and your background 2 (x45 mins) Technical interviews Onsite co-work: Spend half a day with us. We/'ll build and iterate on a science hypothesis together#J-18808-Ljbffr

Created: 2026-02-19