company

Research Scientist - LLM

Retell AISan Francisco Bay Area
On-site Full-time

Clicking Apply Now takes you to AutoApply where you can tailor your resume and apply.


Unlock Your Potential

Generate Job-Optimized Resume

One Click And Our AI Optimizes Your Resume to Match The Job Description.

Is Your Resume Optimized For This Role?

Find Out If You're Highlighting The Right Skills And Fix What's Missing

Experience Level

Entry Level

Qualifications

KEY RESPONSIBILITIESResearch & Experimentation – Investigate and develop new techniques for enhancing AI capabilities. Model Development – Design and implement models that optimize performance in real-world scenarios. Collaboration – Work closely with cross-functional teams to integrate research outcomes into production systems.

About the job

About Retell AI

Retell AI builds voice AI technology that helps businesses transform their call center operations. In just 18 months, thousands of companies have adopted Retell’s AI voice agents to streamline sales, support, and logistics, work that once required large human teams. Backed by investors including Y Combinator and Alt Capital, Retell has grown annual recurring revenue from $5M to $36M with a focused team of 20.

The company’s goal for 2026: a modern customer experience platform where AI powers entire contact centers. Retell is developing AI “workers” that can serve as frontline agents, quality assurance analysts, and managers, handling, evaluating, and improving customer interactions on their own.

Role Overview: Research Scientist – LLM

Retell AI is hiring a Research Scientist focused on large language models (LLMs) and audio processing. This role suits machine learning researchers who want to push the boundaries of real-time AI and see their work in production.

What You Will Do

  • Investigate new approaches in large language models and audio processing for human-like voice agents
  • Design and implement evaluation methods for complex, real-world conversational systems
  • Prototype systems to improve reasoning, reduce latency, and enhance conversation quality
  • Work closely with engineering and product teams to bring research advances into production

Impact

Research at Retell directly shapes the capabilities of voice AI agents for thousands of businesses. The work blends advanced research with practical deployment, improving how customers interact with automated systems across industries.

Location

This position is based in the San Francisco Bay Area.

About Retell AI

Retell AI is a pioneering company in the voice AI space, aiming to revolutionize customer interactions through advanced technology. With significant backing from top investors, we are dedicated to creating state-of-the-art solutions that empower businesses to enhance their customer experience.

Similar jobs

Tailoring 0 resumes

We'll move completed jobs to Ready to Apply automatically.