Machine Learning Engineer - Persana AI

About Persana

Persana AI (YC W23) is revolutionizing how companies execute their go-to-market strategies with our innovative GTM agents. Our proprietary AI technology analyzes billions of data points across professionals, companies, and market signals to help sales teams identify high-probability prospects, engage the right decision-makers, and create personalized outreach that gets responses. Companies using our platform see 3-5x higher conversion rates while their sales teams spend 70% less time on prospecting.

The Opportunity

We're seeking an exceptional Machine Learning Engineer to join our AI team and help advance our agent-based technology. In this role, you'll work on developing and optimizing the core ML systems that power our GTM agents, focusing on embedding models, retrieval systems, and large language model applications. This is a unique opportunity to apply cutting-edge AI techniques to solve real business problems at scale.

What You'll Build

• Advanced embedding models that capture the semantic relationships between companies, people, and roles
• Sophisticated retrieval augmented generation (RAG) systems to ground our agents in factual data
• Fine-tuned language models for industry-specific tasks like prospect qualification and outreach generation
• Evaluation frameworks to measure and improve agent performance across multiple dimensions
• Production ML pipelines that can efficiently process and learn from billions of data points

Your Impact

• Shape the core AI technology that differentiates Persana in the market
• Develop novel approaches to improve agent reliability and reduce hallucinations
• Build systems that deliver measurable business value to our customers
• Collaborate with product and engineering to bring ML innovations into production