LLM / Foundation Model Engineer
Build, fine-tune, and optimize large language models. Pre-training, post-training, RLHF, alignment.
11
Open Positions
Core Skills
Transformer ArchitecturesRLHFPost-trainingScaling LawsDistributed TrainingPyTorchDeepSpeedMegatron
Active Positions (11)
Helix AI Engineer, Generative AImid
Figure AI·San Jose, CA
diffusion modelsgenerative modelingmultimodal foundation modelssynthetic data generationworld modelingmodel-based reasoning
Member of Technical Staff - Grok Main Modelstaff
xAI·Palo Alto, CA
Reasoning-First AI ModelsGrok Model DevelopmentMulti-Modal AI TasksModel Scaling for Knowledge Domains
Senior LLM Software Engineersenior
Anduril·Seattle, Washington, United States
LLM-based Agentic SystemsAutonomous CodingAgentic AutomationModel-ServingLattice OS
Member of Technical Staff - Model Trainingstaff
xAI·London, UK
truth-seeking AImodel trainingAI model power user
Senior LLM Engineersenior
Datadog·Paris, France
LLM-based agentsprompt engineeringagent tools for codeLLM evalsCoPilot-like assistantDynamic Instrumentation
Senior Generative AI Engineersenior
Datadog·Paris, France
AI-assisted developer toolsAutonomous test generationBug fixing with AIPerformance improvement automationLLM-based code agentsPrompt engineering for code
Research Engineer, Pretrainingmid
Anthropic·London, UK
PretrainingModel architectureOptimizer developmentData processingTraining infrastructure scalingDev tooling for ML
Staff Machine Learning Research Scientist, LLM Evalsstaff
Scale AI·San Francisco, CA; Seattle, WA; New York, NY
Generative AI Data EngineSGPDonovanRLHFdata storage platformsstreaming platforms
Member of Technical Staff - Mid-trainingstaff
xAI·Palo Alto, CA
synthetic coding datalarge-scale docker verificationmodel distillationsynthetic data generationmid-training data mixtureslong-context data recipes
Tech Lead/Manager, Machine Learning Research Scientist- LLM Evalssenior
Scale AI·San Francisco, CA; Seattle, WA; New York, NY
Multi-node LLM trainingMulti-node LLM inferenceDistributed ML systemsRLHFRLVRPPO
Senior Software Engineer, GenAIsenior
Scale AI·San Francisco, CA; New York, NY
Reinforcement Learning with Human Feedback (RLHF)Generative AI Data Enginefrontier data generationtrust, safety, and security measures for AI dataAI data operationsLLM capability datasets