Senior AI Engineer (Remote) – Contract, Up to $80/hr

prolificacademicltd; United States; Remote; USD 83,000 - 110,000; Full time

Benefits offered by this job

Fully remote

Flexible hours

Job summary

prolificacademicltd is seeking senior AI/ML engineers for a fully remote, contract-based role. You will contribute to training and evaluating large language models, review model explanations, and provide expert feedback through RLHF-based workflows.

The position emphasizes production-grade ML with Transformers, CNNs, and RNNs, plus prompt engineering and RAG. Flexible hours and rapid onboarding are highlighted, with pay described per task and hour.

Qualifications

• Hands-on experience building, deploying, or fine-tuning ML models.
• Experience with neural networks: Transformers, CNNs, RNNs and optimization.
• Experience with prompt engineering, RAG, or RLHF.
• Ability to audit model logic and detect data contamination.

Responsibilities

• Review AI explanations of architectures, losses, and backpropagation for accuracy.
• Audit ML code/notebooks for efficiency and correctness in training/eval pipelines.
• Provide high-quality human feedback to align models through RLHF.
• Assess how AI handles complex chain-of-thought prompts and pinpoint failures.
• Benchmark model outputs against defined taxonomies and metrics.

Skills

ML model development

Production ML

Transformers

RAG RLHF

Model auditing

Education

PhD in CS/AI/related

MS in ML/AI

Tools

PyTorch

TensorFlow/Keras

Hugging Face Transformers

Amazon SageMaker

Pinecone

Milvus

Weaviate

Job description

prolificacademicltd is seeking senior AI/ML engineers for a fully remote, contract-based role. You will contribute to training and evaluating large language models, review model explanations, and provide expert feedback through RLHF-based workflows.

The position emphasizes production-grade ML with Transformers, CNNs, and RNNs, plus prompt engineering and RAG. Flexible hours and rapid onboarding are highlighted, with pay described per task and hour.