Remote AI/ML Engineer

rex.zone • Brazil
Remote
Apply
AI Summary

Rex.zone connects professionals with AI/ML work, focusing on model training pipelines, dataset reliability, and scalable operations. Main responsibilities include AI/ML pipeline support, data labeling tooling, QA evaluation, and training data quality checks. Key requirements include mid-senior engineering experience in a STEM domain.

Key Highlights
Support AI/ML pipelines
Data labeling tooling and QA evaluation
Training data quality checks
Key Responsibilities
Support AI/ML pipelines through data labeling tooling, QA evaluation, and training data quality checks
Execute prompt evaluation and structured feedback loops (RLHF) tied to large language model evaluation
Validate named entity recognition outputs and perform error analysis for NLP tasks
Review computer vision annotations (e.g., bounding boxes/segmentation) and ensure guideline compliance
Perform content safety labeling reviews using established taxonomies and rubrics
Create audit-ready documentation, metrics reporting, and issue tracking to reduce rework cycles
Technical Skills Required
Python SQL Data Labeling Tooling QA Evaluation Named Entity Recognition Computer Vision Annotations Content Safety Labeling
Benefits & Perks
Competitive hourly rate
Full-time remote work

Job Description


Remote STEM Jobs in Brazil

Rex.zone connects remote professionals with AI/ML and engineering work that strengthens model training pipelines, improves dataset reliability, and supports scalable evaluation operations across distributed teams.

What You Will Do

  • Support AI/ML pipelines through data labeling tooling, QA evaluation, and training data quality checks
  • Execute prompt evaluation and structured feedback loops (RLHF) tied to large language model evaluation
  • Validate named entity recognition outputs and perform error analysis for NLP tasks
  • Review computer vision annotations (e.g., bounding boxes/segmentation) and ensure guideline compliance
  • Perform content safety labeling reviews using established taxonomies and rubrics
  • Create audit-ready documentation, metrics reporting, and issue tracking to reduce rework cycles

Required Qualifications

  • Mid-Senior engineering experience in a STEM domain
  • Strong problem-solving, documentation habits, and comfort working fully remote
  • Ability to follow detailed rubrics and evaluation instructions precisely
  • Working knowledge of Python and SQL for analysis and validation

Tools & Workflow

  • Python, SQL, spreadsheet-based QA workflows, issue tracking, and internal annotation/evaluation tools
  • Dataset QA practices such as sampling strategies, consistency checks, and reproducible reporting

Compensation

Competitive hourly rate: $30–$50/hr (USD).

Remote Type: Remote. Employment Type: Full-time.

Similar Jobs

Explore other opportunities that match your interests

Technical Support Engineer

Programming
•
3d ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Entry level

Fundraise Up

Brazil
Visa Sponsorship Relocation Remote
Job Type Contract
Experience Level Mid-Senior level

Pyramid Consulting, Inc

Brazil

Senior Compliance Specialist

Programming
•
1w ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

Loka

Brazil

Subscribe our newsletter

New Things Will Always Update Regularly