Senior AI Engineer — RLHF & Model Alignment (Remote)

prolificacademicltd; United States; Remote; USD 55,000 - 110,000; Full time

Benefits offered by this job

Fully remote

Flexible scheduling

Short onboarding after assessment

Job summary

prolificacademic ltd is seeking a senior AI/ML engineer participant based in Liverpool to apply deep technical knowledge to guide next-gen large language models. This paid, flexible engagement emphasizes expert human judgment over production systems, with remote-friendly setup.

You will review explanations, audit training loops, and provide structured feedback for RLHF, focusing on alignment, safety, and usefulness, with tasks typically lasting one hour.

Qualifications

• BS, MS or PhD in Computer Science, Artificial Intelligence, Robotics, or a related quantitative discipline with a machine learning focus.
• Hands-on professional experience building, deploying, or fine-tuning machine learning models in production environments.
• Deep familiarity with neural network architectures such as Transformers, CNNs, and RNNs, along with modern optimization techniques.
• Practical experience with prompt engineering, RLHF, or retrieval-augmented generation (RAG) pipelines.
• Strong analytical instincts for spotting hallucinations, bias, contamination, or flawed mathematical reasoning in AI-generated content.

Responsibilities

• Review AI-generated explanations of model architectures, loss functions, and backpropagation for technical correctness.
• Audit ML code such as training loops, preprocessing scripts, and evaluation notebooks for efficiency and accuracy.
• Provide structured human feedback that supports reinforcement learning from human feedback (RLHF) workflows aimed at alignment, safety, and helpfulness.
• Analyze chain-of-thought reasoning from AI systems and pinpoint where logical chains break down.
• Run comparative benchmarks across model outputs using defined technical taxonomies and performance metrics.

Skills

Strong analytical skills

Production ML experience

Prompt engineering/RLHF/RAG knowledge

Education

BS/MS/PhD in CS/AI/Robotics or related quantitative field

Tools

PyTorch

TensorFlow/Keras

NumPy

Pandas

Scikit-learn

Hugging Face Transformers

Vector databases (Pinecone/Milvus/Weaviate)

Job description

prolificacademic ltd is seeking a senior AI/ML engineer participant based in Liverpool to apply deep technical knowledge to guide next-gen large language models. This paid, flexible engagement emphasizes expert human judgment over production systems, with remote-friendly setup.

You will review explanations, audit training loops, and provide structured feedback for RLHF, focusing on alignment, safety, and usefulness, with tasks typically lasting one hour.