21 applied machine learning engineer jobs at 21 companies in Petaluma, CA

PromotedHiringCafe
ML Engineer - Inference & Model Deployment
Cupertino, CA, US
$250k-$310k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Turn powerful AI and ML models into fast, reliable production systems. Own inference latency, throughput, model-serving architecture, multi-GPU systems, and production deployment for millions of users.
Python, PyTorch, vLLM, SGLang, TensorRT, LLMs
PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
1d
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Applied Machine Learning Engineer
San Francisco, California, United States
HybridFull Time
Ohm
Ohm: Enterprise AI platform for hardware and battery product development.
3+ YOE3+ years in data science or applied ML; experience delivering production ML systems, working with time-series/noisy engineering data, anomaly detection/optimization, and cloud deployment/support; STEM background.
2w
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Machine Learning Engineer, Marketplace
San Francisco or New York City or London
$130k-$500k/yr OnsiteFull Time
Mercor
Mercor: Connecting expert human intelligence with frontier AI model development.
Experience shipping ML systems; expertise in ranking, recommendation, search, or matching; comfortable across applied ML stack (data, features, training, inference); strong engineering fundamentals and product impact focus.
Python, Go, embeddings, fine-tuning, RAG, Kafka, Postgres, Redis, Elasticsearch, Kubernetes, Terraform
3w
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Staff Machine Learning Engineer
San Francisco, California, United States
$273k-$345k/yr OnsiteFull Time
Atoms
Atoms: Building specialized industrial robots and physical AI systems.
10+ YOE10+ years MLE experience; deep expertise applying transformers to robotics/spatio-temporal data; multimodal, sensor-fusion, and model optimization experience; proficiency in PyTorch or JAX, Python, and C++.
PyTorch, JAX, Python, C++, TensorRT, CUDA, Birds-Eye-View (BEV)
1w
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Machine Learning Engineer - Quality Intelligence
San Francisco, California, United States
$200k-$300k/yr OnsiteFull Time
AfterQuery
AfterQuery: Curating specialized datasets and environments to train frontier AI models.
3+ YOE3–6 years relevant experience; strong software engineering and applied ML background; experience shipping production systems and working with messy real-world data; strong data intuition and cross-team collaboration skills.
3mo
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Sr. Machine Learning Engineer, Responsible AI– Applied Research Science
San Francisco or United States
$190k-$332k/yr RemoteFull Time
Pinterest
PinterestNYSE: PINS: Visual discovery engine for finding inspiration and creative ideas.
4+ YOE4+ years in ML engineering on production systems; 1+ year cross-team leadership; Masters or PhD in CS or related field; strong fairness/responsible AI focus.
Cursor, Copilot, Codex, LLM productivity tools, SQL
1d
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Machine Learning Engineer - Multimodal Modeling
San Francisco, California, United States
$250k-$295k/yr HybridFull Time
Stand
Stand: Provides homeowners insurance using physics-driven AI risk assessment.
Deep experience designing and productionizing multimodal ML and LLM systems, applying ML to physical systems, strong ownership, communication, and cross-disciplinary collaboration.
LLMs
2w
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Senior / Staff Machine Learning Engineer, Applied AI
Cambridge or San Francisco
$180k-$336k/yr OnsiteFull Time
Lila Sciences
Lila Sciences: Develops an AI platform for autonomous scientific research and discovery.
Strong ML engineering with LLM experience; expertise in training, adapting, evaluating, and deploying models; proficiency in Python and modern ML frameworks; ability to design experiments and debug model behavior.
Python, PyTorch, JAX, TensorFlow, Megatron-LM, TorchTitan, DeepSpeed, Ray
1mo
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Machine Learning Engineer, Simulation Evaluation
Mountain View or San Francisco
$213k-$263k/yr OnsiteFull Time
Waymo
Waymo: Autonomous driving technology for ride-hailing and logistics.
5+ YOEBachelor's/Master's/PhD in CS/ML/robotics, 5+ years ML engineering/applied deep learning experience, proficiency in Python and JAX/Flax/PyTorch, and experience designing evaluation frameworks.
Python, JAX, Flax, PyTorch, C++
1w
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Applied AI, Forward Deployed Machine Learning Engineer
Palo Alto or San Francisco
OnsiteFull Time
Mistral AI
Mistral AI: Developing frontier artificial intelligence models and enterprise AI solutions.
2+ YOEPhD or master in AI/data science,2+ years technical experience,LLM fine-tuning and RAG/agent experience,API and product deployment,Python and PyTorch proficiency,strong communication;fluent English.
Python, PyTorch, Langchain, vector DBs
6d
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Senior Machine Learning Engineer, Agent Oversight
San Francisco or New York City
$216k-$270k/yr OnsiteFull Time
Scale AI
Scale AI: Provides data and infrastructure for training artificial intelligence models.
5+ YOE5+ years as an ML engineer or applied scientist with production ML/LLM systems; experience building evaluation/monitoring or continuous-learning infrastructure; strong experimentation and collaboration skills.
LLMs, RLHF, SFT
3w
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Applied Machine Learning & Data Engineering Senior Consultant II
San Francisco or Los Angeles or New York City or Illinois or Indiana or United States
$130k-$150k/yr RemoteFull Time
Allstate
AllstateNYSE: ALL: Provides insurance products for vehicles, homes, and businesses.
3+ YOE3+ years experience with Python and SQL, generative AI/LLMs, data transformation and pipeline development, DevOps/CI-CD, Azure familiarity, strong stakeholder communication and ability to work in ambiguous environments.
Python, SQL, C#, Azure, LangChain, Microsoft .NET, JSON, APIs, CI/CD, LLMs
1w
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Lead Machine Learning Engineer
San Francisco or Seattle or Santa Monica
$188k-$252k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
7+ YOE7+ years building and deploying ML models, strong background in recommender systems, applied ML/AI/LLM experience, proficiency with PyTorch, TensorFlow, Databricks, Spark, and SQL, strong communication skills.
PyTorch, TensorFlow, Databricks, Spark, SQL
5d
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Senior Machine Learning Engineer, Recommendations
San Francisco, California, United States
$170k-$230k/yr OnsiteFull Time
Arena Club
Arena Club: Digital marketplace and vaulting service for sports collectibles
5+ YOEBachelor's in quantitative field required (advanced degree preferred); 5+ years applied ML/ML engineering; 3+ years in recommendations/ranking; expert Python and ML libraries; experience with SQL, AWS, MLflow; strong experimentation skills.
Python, PySpark, PyTorch, TensorFlow, Scikit-learn, SQL, AWS, EC2, S3, MLflow, AWS OpenSearch, Algolia
3mo
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Senior Machine Learning Engineer, Multimodal AI
San Francisco, California, United States
OnsiteFull Time
Hike Medical
Hike Medical: Produces custom 3D-printed medical orthotics using AI foot scanning.
Experience building production AI systems with LLMs, OCR, and unstructured data; shipping applied AI products; Python; AWS/serverless; analytical and collaborative.
Python, AWS, LLM, OCR, Serverless, APIs
2w
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Principal Machine Learning Engineer (Reconstruction / Quantitative Imaging)
San Francisco, California, United States
OnsiteFull Time
Midjourney
Midjourney: Independent research lab developing generative AI and medical imaging technology.
Strong applied ML experience with imaging or signal processing, ability to move between research prototypes and production systems, strong evaluation discipline, and experience applying ML to physics-based/inverse problems.
PiNNs, Neural Operators, Agentic-SciML, GPU, Kalman filtering
2mo
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Sr. ML Engineer – ML & Applied AI
San Francisco, California, United States
OnsiteFull Time
Gap
GapNYSE: GAP: Retailer of apparel and accessories across multiple global brands.
10+ YOE10+ years in machine learning or software engineering; production ML systems; Python; ML frameworks; CI/CD; cloud; Spark; Databricks; Docker; Kubernetes.
Python, scikit-learn, XGBoost, PyTorch, TensorFlow, FastAPI, Flask, Docker, Kubernetes, GCP, AWS, Azure, Spark, PySpark, Databricks, Git, SQL
1w
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Applied AI Engineer
San Francisco or New York City
OnsiteFull Time
Omnifold
Omnifold: AI-powered forecasting and planning platform for supply chains.
Technical sales/consulting or forward-deployed engineering experience, background in data science or machine learning, experience with enterprise sales cycles, strong project management and communication, proficiency in Python and SQL.
Python, SQL
1mo
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Applied ML Engineer
San Francisco, California, United States
$200k-$350k/yr OnsiteFull Time
Taste Labs
Taste Labs: Building the data and infrastructure layer for AI taste.
Experienced with LLMs, post-training and evaluation design (judges/reward models), running ML experiments and infra, collaborating with external labs, and publishing results.
14h
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Applied Researcher, Audio Post-Training
San Francisco or London or Bengaluru
$200k-$350k/yr OnsiteFull Time
Cartesia
Cartesia: Builds real-time generative voice and multimodal AI models.
Experience in machine learning, generative model training/debugging (SFT, RL), large multilingual dataset construction, software engineering, and evaluation design.
1mo
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Camera Tuning & Image Quality Engineer
San Francisco, California, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Apply computer vision, image processing, and machine learning to tune still image quality and understand user behavior; passion for photography and shipping product experiences at scale.

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