Mercor
MercorVerified listing

AI & Machine Learning · Computer Vision

LLM Research Scientist (Pre-training & Computer Vision & Adversarial Robustness)

100–120/hr
Remote
hourly
15 openings
Posted August 5, 2026
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Listing checked August 29, 2026 · pay as published by Mercor

Key details

Pay
$100–120/hr
Location
Remote
Job type
hourly
Openings
15
Posted
August 5, 2026

Overview

We're seeking an experienced machine learning researcher to tackle open-ended empirical problems at the intersection of vision, language, and model robustness. In this remote, project-based role, you'll train and refine deep learning systems end-to-end, often under tight constraints on data, compute, and model size. Work spans image classification, generative image models, LLM alignment, and adversarial resilience — with a strong emphasis on practical, measurable results.

What You'll Do5

  • Train image classifiers and generative image models from the ground up, and fine-tune open-weight language models for specific behaviors.
  • Get maximum performance from limited datasets, compute budgets, and small model sizes.
  • Harden models against both adversarial inputs and adversarial conversational tactics.
  • Compress models via techniques like pruning, quantization, and distillation to meet strict size and latency limits while preserving accuracy.
  • Troubleshoot and resolve training instabilities or convergence issues as they arise.

Requirements7

  • 3+ years of hands-on machine learning research experience (including PhD research) with deep expertise in at least one of: adversarial robustness, efficient computer vision, generative image modeling, LLM post-training, or multilingual pre-training.
  • Advanced proficiency with PyTorch, JAX, TensorFlow, or another major deep learning framework, and a track record of training models end-to-end.
  • Solid understanding of adversarial robustness methods such as PGD-based adversarial training, TRADES, and evaluation with AutoAttack under L∞ threat models, including avoiding gradient masking.
  • Experience with model compression techniques (quantization, pruning, knowledge distillation) and deploying models under hard size or latency constraints on edge or embedded devices.
  • For LLM work: hands-on experience with SFT, preference optimization (DPO, RLHF, RLAIF), synthetic dataset construction, and steering multi-turn conversational behavior.
  • For multilingual work: experience training tokenizers and models for low-resource or typologically diverse languages, and balancing skewed per-language data.
  • A degree from a top-100 university, experience at a FAANG or similar AI organization, or a strong publication/open-source record.

Who Should Apply

You're a researcher who likes digging into messy, empirical ML problems and iterating until the model behaves. You're comfortable working independently on loosely specified research questions, and you care about making models not just accurate but robust, efficient, and deployable. You have strong coding skills in modern ML frameworks and can point to concrete projects — papers, open-source work, or deployed systems — that show your ability to train and improve deep learning models end-to-end.

Salary Insight

The role pays $100–$120 per hour on a project basis, with flexible, remote work and the opportunity to collaborate with leading AI researchers.

Pay and demand for Machine Learning & AI roles

Market estimates from live NearSkill listings — separate from this job's published terms.

Aggregated

This role · as published

$100–120/hr

Taken from the listing itself.

Typical pay · estimated

$80/hour

Median of 577 similar roles that publish pay · 93 publish only a top rate; those count at the rate they gave

Most Machine Learning & AI roles pay $55–$100 per hour. This role's pay sits above that range.

Typical rangeMedian payThis role

Rates shown per hour. Yearly and monthly pay converted; one-time fees and non-USD pay are not included.

Live similar roles
690
Listed in last 30 days
385
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97%

Hiring most right now: micro1 (242) · Turing (110) · Mercor (105)

Most requested skills · share of roles

  • python
    23%
  • code review
    12%
  • llm evaluation
    12%
  • ai evaluation
    11%

Figures from Machine Learning & AI roles live on NearSkill when this page loaded. A role can close before you apply, so check the listing itself.

Compare your resume against these roles

Required skills

PyTorchJaxTensorFlowAdversarial TrainingPgdTradesAutoattackModel CompressionQuantizationPruningKnowledge DistillationDiffusion ModelsGansDpoRlhfRlaifSynthetic DataRejection SamplingScaling LawsCurriculum Learning

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