LLM Research Scientist (Pre-training & Computer Vision & Adversarial Robustness)
MercorLegit · not rated yetPosted on 5 Aug 2026
Pay: $100–120/hr
- Who can apply
- Open worldwide
- Hours
- 40 hrs/week · Contract
- Where
- Remote, work from home
- Job type
- Red teaming
- Openings
- 15 openings
At a glance: A contract, remote red teaming job with Mercor. It pays $100–120/hr for 40 hours a week. People in any country can apply.
Ongoing · listed since 5 Aug 2026
Mercor keeps this listing open to recruit all year. It is still open, but it isn’t a new opening.
What happens after you click Apply
- You leave AI Trainer HQ and go to Mercor’s own site.
- Upload your résumé on work.mercor.com
- Confirm your work authorization
- Sit the AI interview, which takes about 20 minutes
- Complete any written assessment attached to the listing
- On receiving an offer, sign it, configure payouts and verify your identity
How this pay compares
This job pays more than 42% of the 86 other law jobs on the board that state pay; 51% pay more.
- This job
- $110/hrMiddle of $100–120/hr
- Median on Mercor
- $80/hrFrom 295 other paid jobs
- Median in law
- $115/hrFrom 86 other paid jobs
Requirements
- Qualifications
- 3+ years of machine learning research experience (PhD research counts toward this requirement)
- Strong experience with PyTorch, JAX, TensorFlow, or similar ML frameworks
- Degree from a top-100 university, experience at a FAANG or comparable AI company, or an equivalent research track record through publications or impactful open-source contributions
- Languages
- English
- Equipment
- Computer with a reliable internet connection
About this job
We're looking for experienced machine learning researchers with hands-on experience training and improving deep learning models end-to-end, across vision and language. You'll work on well-scoped empirical open-ended ML research problems.
Responsibilities
• Train image classifiers and generative image models from scratch, and fine-tune open-weight language models.
• Get the most out of limited data, compute, and model-size budgets.
• Make models robust — to adversarial inputs and to adversarial conversations.
• Compress models to meet hard size and latency constraints without sacrificing accuracy.
• Diagnose and resolve training issues.
Requirements
We are looking for candidates with strong expertise in one or more of the following areas:
Adversarial Robustness
Experience with:
• Adversarial training of image classifiers (e.g. PGD-based training, TRADES).
• Evaluating robust accuracy under standard threat models (e.g. L∞ attacks, AutoAttack) and avoiding gradient-masking pitfalls.
• Managing the robustness–accuracy trade-off and robust overfitting.
Efficient Computer Vision
• Training image classifiers end-to-end, especially for fine-grained recognition (many visually similar classes, few examples per class).
• Model compression: quantization, pruning, and knowledge distillation from large teachers into small students.
• Deploying models under hard size or latency budgets (on-device, edge, or embedded settings).
Generative Image Modeling
• Training image generative models from scratch: diffusion models, GANs, VAEs, or flow-based models.
• Iterating against sample-quality metrics such as FID.
• Training-efficiency tricks that produce good generators quickly and at small parameter counts.
LLM Post-Training & Behavioral Robustness
Hands-on experience with one or more of:
• Supervised fine-tuning and preference optimisation (DPO, RLHF, RLAIF) of open-weight language models, including building your own datasets via synthetic generation, noisy or weak supervision, and rejection sampling.
• Shaping conversational behaviour over multiple turns: resistance to persuasion and sycophancy, calibrated confidence, and knowing when to accept corrections.
• Alignment-style fine-tuning that changes a specific behaviour while preserving general capability.
Multilingual Pre-training
• Training multilingual or low-resource-language models from scratch.
• Tokenizer design across scripts and typologically diverse languages.
Listing history
- First seen on our board
- (9 days ago)
- Posted by Mercor
- Last checked
- Source
- Mercor
We check every live job against its source at least every 24 hours. How we check jobs