Historical snapshotmid (2–5 yrs)Captured Oct 18, 2026, 5:58 p.m.

Machine Learning Engineer

Crossing Hurdles

Location
United States
Compensation
US$6–US$7 / year
Employment
PART_TIME
Experience level
MID (2–5 years exp)
Specialization
Machine Learning Engineer, Machine Learning, Jobs.Weekday.Works
Source
Jobs.Weekday.Works

Crossing Hurdles is a recruitment firm. We refer top candidates to our partners working with the world’s leading AI research labs to help build and train cutting-edge AI models.

Position: Computer Science PhD – AI Research Contributor

Type: Hourly Contract (Remote)

Compensation: $60–$70/hour

Location: Remote

Duration: 15–20 hrs/week for 2–3 months (extension possible)

Requirements

  • PhD in Computer Science, Machine Learning, or a related field
  • Deep expertise in core areas such as algorithms, systems, machine learning, or data science
  • High attention to detail and strong analytical thinking
  • Excellent written and verbal communication skills
  • Fluent in English
  • Access to a desktop or laptop computer (no Chromebooks)

Role

  • Design high-quality, domain-specific problems to support training and evaluation of cutting-edge large language models (LLMs)
  • Review, refine, and validate AI-generated outputs for accuracy, complexity, and conceptual soundness
  • Apply your expertise to ensure educational depth and technical rigor in content creation
  • Collaborate with Mercor coordinators and AI lab leads on prompt design and model evaluation
  • Work independently and asynchronously on a flexible schedule

P.S- Accept the referral invite that will pop up while going through the process so we can keep you posted and help you with any issues or questions.