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20 of up to 20 (filtered)

Senior Applied Scientist (Post-Training)

Zillow

Remote (United States) 7 days ago $164,400–$262,600
Actively hiring Confirmed live today Posted this week High trust Above market
LLM Post-training Reinforcement Learning SFT DPO RFT GRPO Reward Modeling Python PyTorch TensorFlow GPU Infrastructure LLM-as-a-Judge Transformers Databricks Fireworks RLHF RLAIF
Remote

Senior ML Research Engineer, Post-Training for Personalization

Apple Inc

Seattle, WA 11 days ago $205,400–$374,300
Actively hiring Confirmed live today High trust Above market
Large Language Models Reinforcement Learning PyTorch Multimodal Reasoning Distributed Training Post-Training Prompt Optimization Generative Modeling Agentic Systems Context Compaction Memory Systems Computer Vision Machine Learning Data Infrastructure

Senior ML Research Engineer, Post-Training for Personalization

Apple Inc

Cupertino, CA 11 days ago $216,200–$394,000
Actively hiring Confirmed live yesterday High trust Above market
Large Language Models Reinforcement Learning PyTorch Multimodal Reasoning Distributed Training Post-Training Prompt Optimization Agentic Systems Generative Modeling Computer Vision Machine Learning Context Compaction Memory Systems Tool-use Data Infrastructure

Senior ML Researcher, Multimodal LLM Post-Training

Apple Inc

Seattle, WA 13 days ago $175,000–$308,500
Actively hiring Confirmed live today High trust Competitive pay
Python PyTorch JAX Supervised Fine-Tuning (SFT) Reinforcement Learning (RL) Distillation DPO GRPO Multimodal LLM Reward Modeling Quantization Neural Network Design Loss Functions Vision-OPD
4+ yrs exp

Senior ML Researcher, Multimodal LLM Post-Training

Apple Inc

San Diego, CA 13 days ago $175,000–$308,500
Actively hiring Confirmed live yesterday High trust Competitive pay
Python PyTorch JAX Reinforcement Learning Supervised Fine-Tuning Distillation DPO GRPO Multimodal LLM Quantization Neural Network Design Reward Modeling Preference Optimization
4+ yrs exp

Senior ML Researcher, Multimodal LLM Post-Training

Apple Inc

Cupertino, CA 13 days ago $184,700–$324,800
Actively hiring Confirmed live today High trust Above market
Python PyTorch JAX Reinforcement Learning Supervised Fine-Tuning Distillation DPO GRPO Multimodal LLM Quantization Neural Network Design Reward Modeling Preference Optimization
4+ yrs exp

Research Manager, Post-Training for Agents

Datadog

New York, NY +1 14 days ago $244,000–$305,000
Actively hiring Confirmed live today High trust Above market
Reinforcement Learning Generative Modeling Post-training Synthetic Data Generation Simulated Environments AI Agents Model Development Evaluation Frameworks Observability Security Machine Learning
Hybrid

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

Staff Research Scientist, Post-Training for Agents

Datadog

New York, NY +1 20 days ago $320,000–$400,000
Actively hiring Confirmed live today High trust Above market
Reinforcement Learning Generative Modeling Post-training Autonomous Agents Synthetic Data Generation Simulated Environments Model Development Evaluation Frameworks Observability Security SaaS Infrastructure Monitoring

PhD AI Research Infrastructure, RL Post-Training Intern

Amd

Santa Clara, CA 36 days ago $91,520–$137,280
Actively hiring Confirmed live today High trust Below market
Python PyTorch Reinforcement Learning LLM Distributed Training Multi-GPU Inference RLHF RLAIF Sequence Parallelism Containerization Experiment Tracking GPU Performance Memory Management Networking

Senior AI Engineer, Post-Training

Carta

San Francisco, CA +1 36 days ago $242,250–$285,000
Actively hiring Confirmed live today High trust Above market
LLM PyTorch Supervised Fine-Tuning Reinforcement Learning Model Serving Distributed Training Data Pipelines AI Agents Post-training Open-weight Models Production Infrastructure

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

Senior Machine Learning Research Engineer, LLM Post-training (Multilinguality)

Apple Inc

New York, NY 55 days ago $184,700–$324,800
Actively hiring Confirmed live today High trust Above market
LLMs Natural Language Processing Python PyTorch JAX Reinforcement Learning Distributed Training Machine Translation Bash Java C C++ Data Filtering Curriculum Learning Post-training Evaluation Methodologies
4+ yrs exp

Senior Manager, Software Engineering, RL Post-Training Frameworks

Nvidia

Santa Clara, CA +5 63 days ago $272,000–$431,250
Actively hiring Confirmed live today High trust Above market
Reinforcement Learning Distributed Systems ML Infrastructure High-Performance Computing CUDA Kubernetes Ray Megatron-Core TorchTitan SGLang TensorRT-LLM Transformer Engine NCCL cuDNN RLHF PPO GRPO DPO Slurm
10+ yrs exp Hybrid

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

Senior Software Engineer, RL Post-Training Frameworks

Nvidia

Santa Clara, CA 67 days ago
Actively hiring Confirmed live today High trust
Reinforcement Learning Python C/C++ PyTorch Ray Kubernetes Distributed Systems Deep Learning Infrastructure vLLM SGLang TensorRT-LLM NCCL NVLink InfiniBand Megatron-LM FSDP DeepSpeed VeRL TorchTitan Monarch
5+ yrs exp Hybrid

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

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

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