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Remote Jobs in Brazil

2172 jobs
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AI Trainer - Advanced Java Developers

Prolific 51-250 Professional Services

Prolific is seeking experienced Java developers to train and evaluate AI models as paid domain experts on a flexible, remote platform.

Java Machine Learning
10 hours, 8 minutes ago

Quantitative Sales Associate

Databento 11-50 IT Services

Databento is hiring a Quantitative Sales Associate to manage the full sales cycle for its market data platform serving finance and fintech customers.

C++ CRM GitHub HubSpot Python Rust
10 hours, 8 minutes ago

AI Trainer - Clinicians

Prolific 51-250 Professional Services

Prolific is seeking clinicians to review and evaluate clinical AI outputs as paid domain experts contributing human feedback to improve model quality and safety.

10 hours, 8 minutes ago

AI Trainer - Advanced Mandarin Fluency (FR)

Prolific 51-250 Professional Services

Prolific is seeking an Advanced Mandarin speaker to join its domain expert participant pool, where they will help train and evaluate AI models on paid Mandarin-language tasks.

10 hours, 8 minutes ago

AI Trainer - Medical Doctors (Boston)

Prolific 51-250 Professional Services

Prolific is seeking Medical Doctors to join its Domain Expert participant pool and help train and evaluate AI models using clinical judgment on paid tasks.

10 hours, 23 minutes ago

AI Trainer - Advanced Arabic Fluency (FR)

Prolific 51-250 Professional Services

Prolific is seeking an AI Trainer with advanced Arabic fluency to help train and evaluate AI models through paid domain-expert tasks.

10 hours, 23 minutes ago

AI Trainer - Advanced Korean Fluency (GER)

Prolific 51-250 Professional Services

Prolific is hiring an AI Trainer for Advanced Korean Fluency to help evaluate and improve AI models through paid language tasks on its participant platform.

Notion
10 hours, 23 minutes ago

AI Trainer - Advanced Japanese Fluency (CAN)

Prolific 51-250 Professional Services

Prolific is seeking an Advanced Japanese-fluent AI Trainer to complete paid data tasks that help train and evaluate AI models using high-quality human feedback.

Notion
10 hours, 23 minutes ago

AI Trainer - Advanced Mandarin Fluency (CAN)

Prolific 51-250 Professional Services

Prolific is seeking an Advanced Mandarin Fluency AI Trainer to complete paid language tasks that help train and evaluate AI models from home.

10 hours, 38 minutes ago

AI Trainer - Concierge (Remote)

Prolific 51-250 Professional Services

Prolific is hiring AI Trainers for its Concierges participant pool to review and improve AI model outputs based on clinical scenarios.

10 hours, 53 minutes ago

AI Trainer - Advanced Urdu Fluency (EST)

Prolific 51-250 Professional Services

Prolific is seeking advanced Urdu speakers to join its platform as domain expert participants, where they will help train and evaluate AI models through paid language tasks.

10 hours, 53 minutes ago

Senior Data Engineer

Consensys 251-1K Internet Software & Services

Consensys is hiring a Data Engineer for its Data team to build and operate the data infrastructure that powers analysis across the organization.

Apache Airflow Apache Spark AWS Blockchain CI/CD Dagster dbt Ethereum GCP GitHub Actions Pulumi Python Segment Snowflake SQL Superset Terraform
11 hours, 8 minutes ago

STEM Expert (US & International)

HumanSignal 1-10 Internet Software & Services

HumanSignal is hiring a STEM Expert to review, annotate, and evaluate scientific content for AI development projects that improve model performance in scientific reasoning and problem-solving.

Machine Learning
11 hours, 8 minutes ago

AI Training - Machine Learning Specialist (PST)

Prolific 51-250 Professional Services

Prolific is hiring AI Trainer – Machine Learning Specialists to apply professional machine learning expertise in training and evaluating AI models through paid participant tasks.

Computer Vision Deep Learning Machine Learning NLP Statistics
11 hours, 8 minutes ago

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