Research Engineer - Midtraining jobs in United States
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Periodic Labs · 2 months ago

Research Engineer - Midtraining

positionMenlo Park, CA
timeFull-time
remoteOnsite
seniorityMid Level

Periodic Labs is an AI and physical sciences lab focused on making novel scientific discoveries through advanced modeling. The role involves training frontier models, developing synthetic data generation methods, and collaborating with researchers to create evaluations for scientific data curation.

Artificial Intelligence (AI)Foundational AIGenerative AIMachine Learning
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H1B Sponsor Likelynote

Responsibilities

You will train frontier models to be highly knowledgeable scientific experts that serve as the foundation for reinforcement learning
You will develop methods for synthetic data generation, distillation, and continual learning at scale
You will work closely with RL researchers, physicists, and chemists to create evals that guide scientific data curation
You will collaborate with supercompute engineers to scale compute-efficient LLM training to thousands of GPUs
You will build high-performance tools for yourself to investigate how data shapes intelligence

Qualification

Training LLMsScaling lawsSynthetic data generationHyperparameter optimizationPerformance evaluation

Required

Experience with training LLMs on curated mixes of trillions of tokens
Experience with calculating scaling laws and compute-optimal hyperparameters
Experience with generating billions of tokens of high-quality synthetic data
Experience with building evals that correlate with downstream task performance

Company

Periodic Labs

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Periodic Labs develops artificial intelligence systems that simulate and predict the properties of materials using machine learning.
dateFounded in 2025
location
San Francisco, California, USA
people-size11-50 employees
web-link
https://periodic.com/

H1B Sponsorship

Periodic Labs has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)

Funding

Current Stage
Early Stage
Total Funding
$300M
2025-09-30Seed· $300M

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Company data provided by crunchbase