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Senior Machine Learning Expert

$60-80/hrRemoteFreelanceCODING

About the Role

What if your deep expertise in machine learning could directly shape how the next generation of AI systems reason, plan, and solve real-world problems? We're looking for Senior Machine Learning Experts to author high-fidelity reasoning traces — structured, step-by-step records of how an AI should think through complex tasks — that train large language models to reason more reliably and effectively.

This is a fully remote, flexible contract role built for senior ML professionals who want meaningful, intellectually stimulating work on the cutting edge of AI development. No office. No fixed hours. Just high-impact work at the frontier of AI.

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

What You'll Do

  • Author complex, high-fidelity reasoning traces that capture how an LLM should plan, use tools, and make decisions across sophisticated technical tasks
  • Break down intricate real-world problems into clear, logical, well-documented steps that serve as training data for frontier AI models
  • Review and provide expert-level feedback on reasoning traces produced by other contributors to ensure quality and consistency
  • Design data strategies that help LLMs navigate multi-step decision-making scenarios more reliably
  • Apply your knowledge of advanced ML architectures and model behavior to produce traces that reflect genuine expert reasoning
  • Work independently and asynchronously — fully on your own schedule

Who You Are

  • Experienced machine learning practitioner with deep expertise in model reasoning, architecture, and evaluation
  • Able to decompose complex, ambiguous problems into clear, logical, and well-documented workflows
  • Comfortable working with advanced LLM evaluation and training methodologies
  • Naturally rigorous and detail-oriented — you care about getting the reasoning right, not just the answer
  • Strong written communicator who can articulate technical thinking in a clear, structured way
  • Self-directed and reliable when working independently without supervision

Nice to Have

  • Prior experience with data annotation, data quality assurance, or model evaluation systems
  • Top-tier Kaggle competition results (Grandmaster or Master level) demonstrating elite-level understanding of model performance and feature engineering
  • Background in AI safety, alignment research, or RLHF-adjacent workflows
  • Experience writing technical documentation, research notes, or structured decision logs

Why Join Us

  • Work directly with leading AI research labs and teams building frontier models
  • Fully remote and flexible — work when and where it suits you
  • Freelance autonomy with the structure of meaningful, high-impact technical work
  • Contribute to AI development that shapes how the world's most advanced models reason and act
  • Potential for ongoing work and contract extension as new projects launch