AI Agent Specialist – Remote (Brazil-based)

Salary: Up to $1,900 USD/month Remote – Brazil-based candidates only

About TalentCross TalentCross partners with U.S.-based clients to connect LATAM professionals with remote opportunities. We focus on simple, clear communication and SEO-friendly job postings to help candidates find the right fit.

About the Role We are seeking an AI Agent Specialist to own, operate, and optimize production AI agents. You'll design experiments, run model and prompt comparisons, tune search and retrieval, and push data quality higher as we scale. This role is ideal for someone who lives in prompts, agents, and evals, and thrives in a fast-moving, startup-style environment.

Responsibilities

• Own and operate a fleet of production AI agents end-to-end • Continuously improve prompts, orchestration, and outputs • Build and run experimentation processes (A/B testing, evals, comparisons) • Optimize models, costs, and search APIs for accuracy and efficiency • Partner with data teams to raise AI-generated output quality • Support adjacent AI projects (customer support agents, internal tools) • Monitor agent performance, set up alerts, and maintain QA processes • Produce clear documentation and enable teammates to operate agents safely

Requirements

• Proven portfolio of AI agents or automations (videos, demos, repos required) • Strong prompt engineering experience, including multi-agent setups • Experience designing evaluations and driving measurable improvements • Hands-on with…