Machine Learning & NLP Expert

Weekday AI

6d • $80 - $110 • Remote

About The Position

Join a cutting-edge AI research initiative and help shape the next generation of frontier AI models. We are seeking experienced Machine Learning & NLP Experts to contribute their technical expertise toward training and evaluating advanced AI systems. In this role, you will design challenging, real-world machine learning and natural language processing tasks, create high-quality reference solutions, and assess AI model performance to identify reasoning gaps and improve overall capabilities. This is a part-time, fully remote opportunity requiring approximately 20 hours per week.

Requirements

• Deep hands-on experience in Machine Learning and/or Natural Language Processing through industry, research, or graduate/PhD-level work.
• Strong proficiency in Python with practical experience developing ML or NLP applications.
• Strong understanding of modern machine learning techniques, including: Model Training and Evaluation, Transformer Architectures, Large Language Models (LLMs), NLP Pipelines, Feature Engineering and Model Optimization.
• Experience with industry-standard frameworks such as PyTorch, TensorFlow, Hugging Face Transformers, or equivalent.
• Ability to commit approximately 20 hours per week.
• Excellent written communication skills and the ability to work independently in a remote environment.

Nice To Haves

• Experience in AI model evaluation, AI training data creation, or human-in-the-loop model assessment.
• Familiarity with Retrieval-Augmented Generation (RAG), vector databases, embedding models, or multimodal AI systems.
• Experience building benchmarking frameworks, automated evaluation pipelines, or testing infrastructure.
• Contributions to open-source ML/NLP projects or published research are a plus.
• Experience working with production-scale machine learning systems.

Responsibilities

• Design challenging, real-world machine learning and natural language processing tasks covering areas such as: Machine Learning Model Development and Evaluation, Natural Language Understanding (NLU), Natural Language Generation (NLG), Information Retrieval and Search, Applied Machine Learning Pipelines, Transformer Models and Large Language Models (LLMs).
• Develop accurate reference solutions and integrate tasks into agentic development environments using Python.
• Build executable evaluation frameworks and testing components where appropriate.
• Evaluate AI model outputs for technical correctness, reasoning quality, and overall performance.
• Identify capability gaps, classify model failure modes, and provide detailed written analyses.
• Create and refine evaluation guidelines, scoring rubrics, and quality standards for ML and NLP tasks.
• Collaborate with fellow subject matter experts to ensure consistency, accuracy, and high-quality training data.

What This Job Offers

• Job Type: Part-time
• Career Level: Senior