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Senior Architect, Model Performance and Post-Training

Nvidia

Remote (Santa Clara, CA) +1 14 days ago $224,000–$356,500
Actively hiring Confirmed live today High trust Above market
Python Large Language Models Transformer Architectures Supervised Fine-Tuning Reinforcement Learning Reward Modeling Model Training Inference Optimization Experiment Tracking Dataset Versioning Evaluation Pipelines Automated Testing Code Generation SWE-bench
10+ yrs exp Remote
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Machine Learning Researcher, Post-Training for Foundation Models

Apple Inc

Cupertino, CA 40 days ago $184,700–$324,800
Actively hiring Confirmed live today Trusted Above market
LLMs Reinforcement Learning Supervised Fine-Tuning Python PyTorch JAX Deep Learning Distributed Training Reward Modeling Synthetic Data Generation Data Filtering Curriculum Learning Model Steering Preference Optimization
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Principal Data Scientist, Agentic AI Systems Engineering & Model Post-Training

Walmart

Bentonville, AR 66 days ago $110,000–$220,000
Actively hiring Confirmed live yesterday High trust Below market
Python TypeScript Go Java React Pydantic AI LangGraph LangChain AutoGen LlamaIndex GCP Kubernetes Docker Kafka Flink Spark OpenTelemetry Grafana TensorFlow scikit learn RLHF RLAIF RAG CI/CD MLOps AgentOps WCAG 2.2 AA
8+ yrs exp
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Distinguished Data Scientist, Agentic AI Systems Engineering & Model Post-Training

Walmart

Bentonville, AR 68 days ago $130,000–$260,000
Actively hiring Confirmed live today High trust Competitive pay
Python Go TypeScript React Pydantic AI LangGraph LangChain AutoGen LlamaIndex Google Cloud Platform Kafka Flink Spark OpenTelemetry Grafana Kubernetes Docker CI/CD RLHF RLAIF TensorFlow scikit learn Graph Databases Model Context Protocol WCAG 2.2 AA
10+ yrs exp
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AIML Researcher/Engineer, Foundation Model Post-Training

Apple Inc

Seattle, WA 145 days ago $175,000–$308,500
Actively hiring Confirmed live today Trusted Competitive pay
LLMs Reinforcement Learning Python PyTorch JAX Deep Learning Distributed Training Transformers Preference Optimization Synthetic Data Generation Curriculum Learning Model Steering Evaluation Methodologies
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AIML Researcher/Engineer, Foundation Model Post-Training

Apple Inc

New York, NY 152 days ago $184,700–$324,800
Actively hiring Confirmed live today Trusted Above market
LLMs Reinforcement Learning Python PyTorch JAX Deep Learning Distributed Training Transformers Data Filtering Curriculum Learning Preference Optimization Model Steering Synthetic Data Generation Evaluation Methodologies
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AIML Researcher/Engineer, Foundation Model Post-Training

Apple Inc

Cupertino, CA 152 days ago $184,700–$324,800
Actively hiring Confirmed live today Trusted Above market
LLMs Reinforcement Learning Python PyTorch JAX Deep Learning Distributed Training Transformers Data Filtering Curriculum Learning Model Steering Preference Optimization Synthetic Data Generation Evaluation Methodologies
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