Contract AI Engineer — RLHF & Model Alignment (Remote)

prolificacademicltd; United States; Remote; USD 66,000 - 110,000; Full time

Job summary

prolificacademicltd in Belfast is seeking experts to participate in a paid study contributing to training and evaluation of large language models. This contract role offers flexible remote scheduling and typically requires up to one hour per task.

You will review explanations, audit code, provide structured feedback for RLHF workflows, and assess reasoning in prompts, with compensation up to $80 per hour.

Qualifications

• BS/MS/PhD in CS/AI/Robotics or related field with ML focus.
• Hands-on production experience with building/deploying or fine-tuning ML models.
• Strong knowledge of Transformer, CNNs, RNNs and optimization techniques.
• Experience with prompt engineering, RLHF, or RAG workflows.

Responsibilities

• Review explanations of model architectures and training details for accuracy.
• Audit ML code, training loops, preprocessing scripts, and notebooks for efficiency.
• Provide structured feedback to support RLHF and model alignment.
• Assess chain-of-thought prompts and identify reasoning failures.
• Benchmark model outputs against technical taxonomies and metrics.

Skills

ML model development

NLP/Transformers

RLHF / prompt engineering

Model auditing

Attention to detail

Education

ML-focused degree

Tools

PyTorch

TensorFlow/Keras

NumPy/Pandas/Scikit-learn

Hugging Face Transformers

AWS SageMaker / Vertex AI

Job description

prolificacademicltd in Belfast is seeking experts to participate in a paid study contributing to training and evaluation of large language models. This contract role offers flexible remote scheduling and typically requires up to one hour per task.

You will review explanations, audit code, provide structured feedback for RLHF workflows, and assess reasoning in prompts, with compensation up to $80 per hour.