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[Remote] ML Engineer - Model Evaluation Expert

Work from home Full-time role Hiring

Note: The job is a remote job and is open to candidates in USA. Mercor connects elite creative and technical talent with leading AI research labs. The company is seeking a Machine Learning Engineer to design research-based tasks, run and analyze training experiments, evaluate frontier models, and collaborate with researchers on rigorous and fair task development.

Responsibilities

  • Design tasks by transforming real ML research ideas into well-defined, multi-step tasks
  • Run experiments by implementing changes, executing training experiments, and analyzing results to define correct solutions
  • Explore reinforcement learning concepts such as reward functions and training behavior in task development
  • Evaluate frontier models' performance on tasks and identify areas of improvement
  • Collaborate with researchers to ensure tasks are consistent, rigorous, and fair

Skills

  • • MSc or PhD in machine learning, computer science, or a related STEM field
  • • 1+ years in a research or research-engineering role
  • • Experience in training and evaluating ML models and conducting end-to-end experiments
  • • Proficiency in Python and Git
  • • Strong understanding of large language models and their evaluation
  • • Basic knowledge of reinforcement learning
  • • Experience in AI training, model evaluation, or benchmark/task authoring

Benefits

  • Remote work
  • Paid weekly

Company Overview

  • Mercor is an AI-based hiring platform that improves the recruitment process by matching talent with opportunities tailored to their skills. It was founded in 2023, and is headquartered in San Francisco, California, USA, with a workforce of 201-500 employees. Its website is https://mercor.com.
  • Company H1B Sponsorship

  • Mercor has a track record of offering H1B sponsorships, with 19 in 2026, 7 in 2025. Please note that this does not guarantee sponsorship for this specific role.
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