Machine Learning Expert

🔥 1 hour ago

🇺🇸 United States – Remote

💵 $150 - $200 / hour

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

🤖 Machine Learning Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Mercor

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

🔥 Funding within the last year

💰 $350M Series C - Mercor on 2025-10

Mercor is a company for which no descriptive text was provided in the input. Additional information (products, services, target customers, or industry specifics) is needed to create an accurate summary and select appropriate industries.

📋 Description

• Generate ideas for difficult machine learning engineering tasks for a long-horizon AI research project with a leading AI lab • Design tasks challenging enough to stump frontier models, generally solved in no more than 2 out of 8 attempts • Focus primarily on inference, evaluation and systems work rather than heavy model training • Create a mix of GPU-based and CPU-only tasks • Explain clearly why each problem is difficult for a frontier model • Contribute ideas without needing to build or review the tasks • Work on projects training and enhancing AI systems through Mercor partnerships with leading AI labs and enterprises

🎯 Requirements

• Current or recent role as an ML research engineer, research scientist or applied scientist • Hands-on experience personally training, fine-tuning or optimizing models in PyTorch or JAX • Deep knowledge of at least one area: LLMs (pretraining, alignment, evals); GPU inference and performance (vLLM, Triton, CUDA, profiling); reinforcement learning; or scientific ML in weather and climate, physics, or biology • Able to explain why a problem is hard for a frontier model • Experience writing benchmark or evaluation questions is a plus • PhD in ML, CS or physics, or an MSc plus strong research output is a nice-to-have • Publications are a nice-to-have • Prior Mercor contracts with strong performance are a nice-to-have • Independent contractor engagement • Must not require H-1B or STEM OPT support

🏖️ Benefits

• Fully remote role • Flexible own schedule • Weekly payments via Stripe or Wise • Competitive pay • Opportunity to collaborate with leading researchers • Opportunity to help shape the next generation of AI systems • Referral payments of up to $800 per successful referral (referral limits apply) • Reasonable accommodations upon request