Agent Engineer

Mercor

. Build and operate LLM agents in production .

Posted 10/26/2026contractRemote • United StatesMid-LevelSenior💰 $100 - $500 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and operating LLM agents in production, with a strong focus on agent reliability, evaluation, and adoption. Proficient in analyzing internal assistant usage and managing cloud-based operations.

Highest-signal resume keywords

LLM Agent DevelopmentAgent Reliability AssessmentCloud Sandbox OperationsInternal Assistant Adoption AnalysisAgent Observability and Cost Tracking

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

LLM Agent DevelopmentAgent EvaluationScheduled Job OperationsLong-Running Agent WorkCloud Sandbox ManagementInternal MonoagentsShared Company MemoryReusable Skills and PlaybooksAgent Tool and MCP SurfacesAgent Observability

Soft Skills

Conversational AI Interview Skills

Tech Stack

Tools & technologies

Cloud

About the role

Key responsibilities & impact

Build and operate LLM agents in production
Assess agent reliability, evaluation, and adoption
Operate scheduled jobs, long-running agent work, and cloud sandboxes
Analyze internal assistant adoption and usage
Work with company data, shared memory, reusable skills and playbooks, tool and MCP surfaces
Understand how to observe agent actions and costs
Complete a short conversational AI interview
Participate in a live 30-minute conversation with the Mercor team

Requirements

What you’ll need

Experience building and operating LLM agents in production
Shipped an agent used by real users and taken responsibility when it broke
Experience evaluating whether an agent improved or worsened after a change
Experience operating agents beyond a single request, including scheduled jobs, long-running work, or cloud sandboxes
Visibility into internal assistant adoption within an organization
Experience with internal monoagents connected to company data, shared company memory, reusable skills and playbooks, agent tool and MCP surfaces, and agent observability and cost tracking
Ability to complete a conversational AI interview
No coding or take-home assignment required
Must be a qualified applicant; reasonable accommodations available upon request

Benefits

Comp & perks

$100 to $500 for the live 30-minute conversation, paid on completion of the call
Referral payments of up to $250 for each successful referral
Reasonable accommodations upon request