Senior Machine Learning Expert

Senior Machine Learning Expert (AI Training)

About the Role

What if your deep expertise in machine learning could directly shape how the world's most advanced AI systems reason, plan, and make decisions? We're looking for Senior Machine Learning Experts to do something that matters: write the step-by-step reasoning traces that teach LLMs how to think through complex, real-world problems.

This isn't prompt engineering or data entry. This is high-level intellectual work — you'll be capturing the decision-making process of an expert mind and translating it into structured training data that makes AI smarter, more reliable, and more trustworthy at scale.

Fully remote, flexible hours, and meaningful work at the frontier of AI development.

• Organization: Alignerr
• Type: Hourly Contract
• Location: Remote
• Commitment: 10–40 hours/week

What You'll Do

• Author complex, high-fidelity reasoning traces that document step-by-step planning, tool use, and decision-making for sophisticated technical tasks
• Apply senior-level architectural insights to ensure traces reflect how an expert actually thinks — not just what the answer is
• Design and implement data strategies that help LLMs navigate nuanced, real-world scenarios with greater reliability
• Review and refine existing traces to ensure optimal structure, clarity, and logical coherence
• Contribute to the development of training data that shapes how next-generation AI models reason under uncertainty

Who You Are

• Deeply experienced in machine learning, AI systems, or a closely related technical field
• Skilled at decomposing complex problems into clear, logical, well-documented steps — you think in structured processes
• Familiar with LLM evaluation, fine-tuning, or training methodologies
• A precise and articulate written communicator — you can explain your reasoning clearly and completely
• Self-directed and reliable when working independently on challenging, open-ended tasks

Nice to Have

• Prior experience with data annotation, data quality systems, or AI evaluation pipelines
• Top-tier Kaggle competition results (Grandmaster or Master level) — demonstrating elite-level understanding of model performance and feature engineering
• Background in reinforcement learning, chain-of-thought prompting, or agent-based systems
• Experience reviewing or auditing ML pipelines for correctness and robustness

Why Join Us

• Work at the absolute frontier of AI — your contributions directly influence how leading LLMs are trained
• Collaborate with researchers and engineers working on some of the most advanced AI projects in the world
• Fully remote and async — work on your own schedule, from anywhere
• Freelance autonomy with consistent, intellectually stimulating work
• Exposure to advanced LLM architectures and training methodologies you won't find anywhere else
• Potential for ongoing work and contract extension as new projects launch