AI Engineer/ML Engineer - Senior Developers - AI Training - Memphis, US

Prolific is building a global platform for high-quality human data used in AI development.

The role

We're looking for AI and Machine Learning Engineers to help train and evaluate the next generation of LLMs using deep technical expertise. Candidates complete a short assessment to evaluate suitability for AI tasks. Successful participants are invited to complete paid tasks focused on training and evaluating AI models.

Researchers looking for these skills tend to pay up to $80 per hour. Tasks may require one hour of uninterrupted work, though many are shorter.

What you'll bring

• BS, MS, or PhD in Computer Science, Artificial Intelligence, Robotics, or a related quantitative field with a focus on Machine Learning
• Experience building, deploying, or fine-tuning ML models in a production environment
• Professional-level understanding of neural network architectures including Transformers, CNNs, and RNNs
• Hands-on experience with Prompt Engineering, RLHF, or RAG workflows
• Ability to audit complex model logic and evaluate ML algorithms
• High attention to detail in identifying hallucinations, biased outputs, and logical failures in AI-generated content

What you'll be doing in the role

• Review AI-generated explanations of model architectures, loss functions, and backpropagation for technical accuracy
• Validate ML-specific code such as training loops, preprocessing scripts, and model evaluations
• Provide human feedback to improve model alignment, safety, and helpfulness
• Assess AI reasoning on complex chain-of-thought prompts and identify reasoning failures
• Conduct comparative testing of model outputs using technical taxonomies and performance metrics

Key Technologies

• PyTorch or TensorFlow/Keras
• Python with NumPy, Pandas, and Scikit-learn
• Hugging Face Transformers
• AWS SageMaker or Google Cloud Vertex AI
• Weights & Biases and LangChain
• Pinecone, Milvus, or Weaviate for vector database and RAG evaluation

Why join as a participant

• Competitive pay rates
• Flexible hours
• Remote work opportunities
• Opportunity to influence the next generation of AI systems

By submitting your application, you agree that Prolific may collect personal data for recruiting and organizational planning purposes.