✦ Luna Orbit — AI & Machine Learning

Lead AI Engineer (AI Foundations, LLM Customization and Finetuning)

at Discover Financial Services

📍 5 Locations Unknown 💰 $197K – $225K USD / year Posted March 17, 2026
Salary $197K – $225K USD / year
Type Full-Time
Experience mid
Exp. Years 3+ years
Education Not specified
Category AI & Machine Learning

This role involves developing and optimizing large language models and AI systems at Capital One, leveraging open source tools and responsible AI practices.

  • Design and train large language models
  • Optimize AI model performance
  • Deploy AI systems at scale
  • Collaborate with research teams
  • Implement responsible AI practices

The environment includes PyTorch, Huggingface, VectorDBs, Nemo Guardrails, and AWS Ultraclusters, focusing on AI model training, inference, evaluation, and infrastructure.

The ideal candidate is a mid-level AI engineer with experience in large language models, AI training, and inference, proficient in tools like PyTorch and Huggingface. They are innovative, research-oriented, and capable of developing scalable AI systems.

experience with AI and MLknowledge of large language modelsexperience with AI model training and inferencefamiliarity with AI infrastructure
experience with open source AI toolsknowledge of AI model optimization techniquesexperience with SaaS AI technologiesfamiliarity with responsible AI practices
PyTorchHuggingfaceVectorDBsNemo GuardrailsAWS Ultraclusters
Large Language ModelsPyTorchHuggingfaceVectorDBsNemo GuardrailsAI model trainingAI inferenceAI systemsModel evaluationModel optimization
Large Language ModelsLLMPyTorchHuggingfaceVectorDBsNemo GuardrailsAI model trainingAI inferenceAI systemsModel evaluationModel optimizationAI infrastructure
problem-solvingresearchinnovationcollaborationcommunication
Industry Fintech
Job Function AI model development and deployment
Role Subtype AI Engineer
Tech Domains Python, PyTorch, Huggingface, AI model training, AI inference
Clearance Required None
Visa Sponsorship No
ai engineermachine learninglarge language modelsLLMPyTorchHuggingfacevector databasesai model trainingai inferenceai systemsmodel evaluationmodel optimizationai infrastructureresponsible aiai researchAImodel trainingmodel inferenceAI infrastructureAI optimization

No experience with AI or ML, Lack of knowledge of LLMs, No experience with AI infrastructure

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