About the Role You'll work on the architecture and scaling of our largest models: what we train, how we train it, and how to spend the next order of magnitude of compute well. This is empirical research with a direct line to production. The recipes you set are the recipes our frontier runs use.
Responsibilities- Conduct research on model architecture, optimization, and scaling to improve the capability and efficiency of our largest models.
- Establish strong baselines and run controlled experiments to determine which ideas actually scale to frontier training runs.
- Set training recipes at scale: learning-rate schedules, context length, token budgets, and compute allocation.
- Explore new architectures, including mixture-of-experts, hybrid attention, and long-context extension.
- Diagnose instability in large runs: loss spikes, divergence, numerical issues, and the infrastructure failures that look like research problems.
- Work across modalities, since our models are multimodal from pretraining forward.
Requirements- Hands-on experience training large models, at a scale where compute allocation and stability decisions carry real cost.
- Strong empirical instincts: you design the experiment that distinguishes between two hypotheses instead of the one that confirms the first.
- Fluency with scaling laws and how to use small-scale results to make a frontier-scale bet.
- Deep familiarity with a modern training stack and distributed training across large GPU clusters.
- Strong engineering. Research here means writing the code and reading the profiler, not handing off a spec.
- A record of work that shipped into real models, whether that shows up as papers, systems, or production runs.
Bonus Qualifications- Experience with mixture-of-experts routing, sparse architectures, or long-context methods.
- Work on data mixtures, curriculum, or tokenizer design.
- Kernel-level optimization or mixed-precision training experience.
- Experience with efficiency work aimed at constrained inference targets, including on-device.
CompensationThe US base salary range for this full-time position is between $180,000 - $450,000 annually.
The pay offered for this position may vary based on several individual factors, including job-related knowledge, skills, and experience. The total compensation package may also include additional components/benefits depending on the specific role. This information will be shared if an employment offer is extended.