Senior Lead Machine Learning Engineer, Agentic AI

Upwork is seeking a Senior Lead Machine Learning Engineer to architect, ship, and scale the next generation of agentic intelligence across Upwork. The role involves designing and implementing multi-agent systems, developing protocol-aware agents and services, and owning reliability at scale. The ideal candidate has senior-level experience in applied ML/ML systems, hands-on mastery of LLM adaptation, and strong software fundamentals.

Requirements

• Build Agentic Intelligence
• Develop protocol-aware agents and services
• Own reliability at scale
• Train, Align, and Evaluate LLMs for Agents
• Engineer Agentic Platform Backend Infrastructure
• Lead, Partner, and Uplevel the Ecosystem

Benefits

• Competitive benefits offered by partner
• Access to Upwork's resources, culture, and growth opportunities
• Potential for employment with Upwork once hub is established