Lead Search Systems Engineer – Agentic & Production-Ready

Mercor; Toronto; Remote; CAD 90,000 - 130,000; Full time

Job summary

Mercor is seeking engineers who have shipped production search systems and are deeply thoughtful about requirements and optimizations. You will discuss how you’ve improved search quality, evaluation methods, and tradeoffs with real-world impact. Bring war stories—the messier and more specific, the better.

The interview is a 25-minute conversational session with no coding or take-home tasks, focused on how you think about search quality and system design in production environments.

Qualifications

• Engineers who have shipped production search systems and care about requirements and optimization.
• Experience designing systems used by real users and quantifying impact.
• Familiarity with agentic search and large language models is a plus.

Skills

Production search systems

Agentic / LL M based search

Relevance / retrieval

Data infrastructure

Evaluation & metrics

Job description

Mercor is seeking engineers who have shipped production search systems and are deeply thoughtful about requirements and optimizations. You will discuss how you’ve improved search quality, evaluation methods, and tradeoffs with real-world impact. Bring war stories—the messier and more specific, the better.

The interview is a 25-minute conversational session with no coding or take-home tasks, focused on how you think about search quality and system design in production environments.