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Senior Machine Learning Engineer

New York, NY Contract Remote $60 — $80 hourly 09/17/2026 Job ID: 000228
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Machine Learning Model Reasoning Complex Problem Decomposition LLM Evaluation LLM Training Methodologies

Summary

What you’ll impact

The Senior Machine Learning Engineer – AI Data Trainer will lead the creation of high-fidelity reasoning traces for complex technical tasks, mentor annotators, and design data strategies to improve LLM decision-making. This remote, hourly contract role supports 10–40 hours per week and offers $60–$80 per hour.

Responsibilities

What you'll do

  • Lead the authorship of complex, high-fidelity reasoning traces for sophisticated technical tasks.
  • Mentor and review structured traces to ensure optimal planning and tool-use documentation.
  • Design data strategies that help LLMs navigate intricate real-world decision-making scenarios.

Requirements

What you’ll bring

  • Significant experience in Machine Learning or related technical fields, with a focus on model reasoning.
  • Proven ability to decompose complex problems into clear, logical, and documented steps.
  • Experience with advanced LLM evaluation and training methodologies.

Ready to Move Forward?

Apply now and our recruiting team will reach out with next steps, interview guidance, and client insights tailored to this role.