Most In Demand STEM Jobs Brazil (Remote, Full-Time)

Overview

Rex.zone highlights the most in-demand STEM roles for teams building modern AI systems, including work tied to LLM training pipelines, RLHF evaluation, prompt evaluation, QA evaluation, and data labeling. Roles are Remote and FULL_TIME, typically Mid-Senior level.

In-demand roles you may match

* Machine Learning Engineer

* Data Engineer

* Software Engineer

* Cloud Engineer

* Cybersecurity Engineer

* Computer Vision Engineer

* NLP Engineer

Common Responsibilities (vary By Role)

* Build and operate production systems for AI/ML delivery and evaluation

* Improve model performance through data-centric iteration and offline/online metrics

* Support LLM evaluation loops (rubric scoring, QA evaluation, prompt evaluation)

* Partner with labeling teams/vendors to ensure annotation guidelines compliance

* Harden reliability, observability, security, and cost controls in cloud environments

About AI/ML Workflow Alignment

These roles often intersect with RLHF, evaluation pipelines, content safety labeling, NER, CV annotation, and dataset quality practices to improve training data and model outcomes.