12 large language model engineer jobs at 7 companies in Mercerville, NJ
3w
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Staff AI/ML Engineer (Large Language Model)
King of Prussia, Pennsylvania, United States
$108k-$228k/yr OnsiteFull Time
8+ YOEActive TS/SCI clearance, B.S. in relevant field, 8+ years experience with 2+ years building LLM applications; experience fine-tuning models, RAG, deployment, Python and ML libraries required.
Weaviate, pinecone, pgvector, LangChain, DSPy, Microsoft Agent Framework, AWS Bedrock, OpenAI, llama.cpp, vllm, tgi, ReAct, Python, NumPy, Pandas, Polars, scikit-learn, git, GitLab, Bitbucket, HuggingFace, LangFuse, MLFlow, Arize Phoenix, Linux, CUDA, CuPy, Numba, CuSignal, CuDF, AWS EC2, S3, Lambda, Java, C++, Rust, Go, C#, Podman, Docker, Kubernetes, Rancher
3w
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Staff AI/ML Engineer (Large Language Model)
King of Prussia, Pennsylvania, United States
$108k-$228k/yr OnsiteFull Time
8+ YOEActive TS/SCI clearance, BS in relevant field, 8+ years experience (2+ building LLM applications), experience fine-tuning models, RAG, Python, ML libraries, version control, and leading teams.
PEFT, llama factory, Weaviate, pinecone, pgvector, LangChain, DSPy, Microsoft Agent Framework, AWS Bedrock, OpenAI, llama.cpp, vllm, tgi, ReAct, NumPy, Pandas, Polars, scikit-learn, git, GitLab, Bitbucket, HuggingFace, LangFuse, MLFlow, Arize Phoenix, Gymnasium, OpenEnv, TorchRL, RLlib, Stable Baselines, CuPy, Numba, CuSignal, CuDF, EC2, S3, Lambda, Podman, Docker, Kubernetes, Rancher, Java, C++, Rust, Go, C#, Python
2d
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Principal AI/ML Engineer (Large Language Model)
Aurora or Philadelphia
$115k-$252k/yr OnsiteFull Time
10+ YOETS/SCI with adjudicated polygraph, bachelor's degree in a related field, 10+ years of experience, 2+ years building LLM applications, team leadership, Python, and machine learning expertise.
Large Language Models (LLMs), llama factory, PEFT, Retrieval Augmented Generation (RAG), Weaviate, pinecone, LangChain, DSPy, Kubernetes, llama.cpp, vllm, Python, PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, Sparse auto encoders, BERT, YOLO, Faster-RCNN, Gymnasium Gym, RLlib, Stable Baselines, HuggingFace, Nerfstudio, FiftyOne, Linux, AWS, Amazon EC2, Amazon S3, AWS Lambda, Java, C++, Rust, Go, C#, CUDA, Podman, Docker, Rancher
2d
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Principal AI/ML Engineer (Large Language Model)
Aurora or Philadelphia
$115k-$252k/yr OnsiteFull Time
10+ YOEActive TS/SCI with adjudicated polygraph, bachelor's degree, 10+ years of experience, and 2+ years building LLM applications. Requires team leadership, Python, and machine learning expertise.
Large Language Models (LLMs), Llama Factory, PEFT, Retrieval Augmented Generation (RAG), Weaviate, Pinecone, LangChain, DSPy, Kubernetes, llama.cpp, vLLM, TGI, Python, PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, AWS Bedrock, OpenAI, ReAct, YOLO, Faster-RCNN, BERT, Gymnasium Gym, RLlib, Stable Baselines, HuggingFace, Nerfstudio, FiftyOne, Linux, AWS, EC2, S3, Lambda, Java, C++, Rust, Go, C#, CUDA, Podman, Docker, Rancher
2w
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Senior AI/ML Engineer
New York City, New York, United States
RemoteFull Time
Build inference infrastructure, own model evaluation pipelines, optimize latency, and integrate orchestration engines with frontier large language models.
1mo
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Research Engineer, Algorithms
New York City or London or Palo Alto or Copenhagen or Seoul
$300k-$400k/yr OnsiteFull Time
Deep knowledge of large-model inference, stochastic systems, and numerical methods; experience implementing algorithms on real hardware; strong Python and systems-language programming skills.
Python
3mo
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Senior Machine Learning Engineer, Personalization, Magenta
New York, New York, United States
$184k-$263k/yr HybridFull Time
5+ YOE5+ years of production ML experience; strong background with large language models and conversational/agentic systems; ability to design metrics and evaluation pipelines; reliable, scalable ML systems; cross-functional collaboration.
6d
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Senior Research Engineer, Agentic Data and Tooling, DeepMind
New York City, New York, United States
$174k-$252k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent experience, 5 years with large language models, 2 years developing and training machine learning models, and experience with agentic integrations and Model Context Protocol.
Large Language Models (LLMs), Model Context Protocol
2w
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Research Engineer, Cyber Gemini, DeepMind
New York or Mountain View or San Francisco
$174k-$252k/yr OnsiteFull Time
5+ YOEBachelor's degree or equivalent practical experience; 5 years with large language models, including pre-training or fine-tuning. Cybersecurity, data pipelines, applied research, and ML expertise preferred.
large language models (LLM), Gemini, CodeMender, RL, SFT, ML
1mo
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Campus AI Research Engineer – Research Automation (Intern)
Chicago or New York City
$300k/yr OnsiteInternship
Strong ML research background with publications, deep learning and language-modeling experience, proficiency in Python/C++ and ML frameworks, and ability to build and deploy large-scale ML systems.
C, C++, Python, CUDA, PyTorch, JAX, TensorFlow, ROCm, transformers, SSMs, HPC
2w
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AI Infra Engineer Graduate (Recommendation & LLM) 2027 Start (PhD)
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
$162k-$388k/yr OnsiteFull Time
PhD in computer science or related field; strong C++ or Python skills; knowledge of algorithms, computer systems, PyTorch or TensorFlow, Transformer architectures, and large language models.
C++, Python, PyTorch, TensorFlow, CUDA, Triton, FSDP, ZeRO, FlashAttention
4w
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Machine Learning Engineering Manager, Personalization
New York City or Boston
$184k-$263k/yr RemoteFull Time
Experience leading ML engineering teams, building and operating production ML systems, end-to-end ML lifecycle, and working with large language models and generative AI.
large language models