Principal Research Scientist: Foundation Models & Real-Time AI

HellaGoodAudio; United States; Remote; USD 188,000 - 269,000; Full time

Benefits offered by this job

Equity

Benefits package

Job summary

Inworld is seeking exceptional researchers to advance realtime AI for consumer applications. You’ll own end-to-end research from concept to publishable results, framing questions, running experiments, and shipping impactful findings. We value fast iteration, clear demonstrations, and open collaboration across teams.

A base salary range is £140,000 – £200,000 with equity and benefits. UK work eligibility is required; visa sponsorship isn’t available. Relocation to SF may be considered.

Qualifications

• Foundation models: training, scaling and reward modeling concepts.
• Evaluation: benchmarks, eval loops, quality measurement.
• Frontier topics: multimodal models, agents, tool use, world models.
• PhD in ML/NLP — or equivalent demonstrated work.
• Public work: non-trivial AI side projects and open-source contributions.

Responsibilities

• Frame research questions, run experiments, and ship results.
• Own the end-to-end lifecycle from idea to publication.
• Balance research impact with production readiness and rigor.

Skills

Foundation models

Evaluation

Frontier topics

Published research

Full-stack research ownership

Pathfinders

Full-Cycle Researchers

First-Principles Engineers

Mission Owners

Education

PhD in ML/NLP

Job description

Inworld is seeking exceptional researchers to advance realtime AI for consumer applications. You’ll own end-to-end research from concept to publishable results, framing questions, running experiments, and shipping impactful findings. We value fast iteration, clear demonstrations, and open collaboration across teams.

A base salary range is £140,000 – £200,000 with equity and benefits. UK work eligibility is required; visa sponsorship isn’t available. Relocation to SF may be considered.