ML / AI Jobs in United States

Open 53d HybridNorth AmericaFull-time

Machine Learning Engineer

A/B Testing Acceptance Criteria AI Analytics API +26 skills

Los Angeles, California

Machine Learning Engineer on Viking's Data Platforms & Solutions team in Los Angeles, designing, deploying, and operating production ML systems for demand forecasting, pricing, inventory, and recommendations. Core stack is Python, SQL, Spark, Databricks, and MLflow with a strong MLOps focus.

155K – 180K $

SambaNova Systems

New North AmericaFull-timeJunior Salary + equity 4 questions

Machine Learning Engineer - New Grad

Austin, Texas, San Jose, California

SambaNova is a leader in next-generation AI infrastructure, delivering a full-stack inference platform for customers worldwide. At the core of SambaNova's technology is the RDU (Reconfigurable Dataflow Unit) — a chip…

Agentic AI AI DeepSpeed Distributed Training Fine Tuning +13 skills

Xcelo Group Inc

AI/ML Engineer

New North America

Agentic AI AI Generative AI LLM Machine Learning +1 skills

Job Title: Lead AI/ML Engineer - Generative AI / Agentic AI This is a W2 Position, Candidates who does not match the requirements please do not submit the profile Work Auth: and OPT/STEM OPT (No H1 and No Fake…

Jump Trading

Open 140d North America, UKFull-time 3 questions

Research Scientist/Research Engineer | Deep Learning

Chicago, New York, London

Research Scientist/Engineer applies deep learning to build predictive trading models and trading infrastructure for global financial markets using Python/C++ and advanced math.

C++ Deep Learning Machine Learning Python Statistics

200K – 350K $

Oddball

Open 55d North AmericaContract No extra questions

Applied AI/ML Engineer

AI Anomaly Detection API CI/CD Cloud +19 skills

Washington DC area

Oddball is hiring an Applied AI/ML Engineer to design, build, and deploy production ML and GenAI features (LLM workflows, RAG, classification, NLP) for its federal-space software work. Day to day spans prototyping, data pipelines, model evaluation, and integrating models into services, using Python, PyTorch/TensorFlow, and SQL/Spark.

150K – 200K $

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Albuquerque, US

Gig-style engagement: ML/AI engineers join Prolific's Expert Network as paid participants to train and evaluate LLMs — auditing model reasoning, ML code, and RLHF quality via flexible hourly tasks paying up to $80/hr. Core tech: Python, PyTorch/TensorFlow, Hugging Face Transformers, RLHF/RAG workflows.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Atlanta, US

Paid participant gig via Prolific's Expert Network: senior AI/ML engineers work remotely to train and evaluate LLMs — auditing model reasoning and code, refining RLHF feedback, and benchmarking outputs — earning up to $80/hour. Core stack: Python, PyTorch/TensorFlow, Hugging Face, RLHF/RAG workflows.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Austin, US

Prolific is recruiting senior AI/ML engineers as paid participants in its Expert Network to train and evaluate LLMs: auditing model logic and ML code, providing RLHF feedback, and benchmarking outputs. Core stack: Python, PyTorch/TensorFlow, Hugging Face, RLHF/RAG workflows; pays up to $80/hour, remote from Austin, US.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Boston, US

Senior AI/ML engineers join Prolific's Expert Network as paid remote participants to train and evaluate LLMs — auditing model logic and code, providing RLHF feedback, and assessing chain-of-thought reasoning. Requires deep learning expertise (PyTorch/TensorFlow, Python, RLHF/RAG); pays up to $80/hour.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - El Paso, US

Prolific is recruiting senior AI/ML engineers into its paid Expert Network to train and evaluate LLMs: reviewing model reasoning and architectures, auditing ML code and notebooks, and providing RLHF feedback at up to $80/hour. Core stack: Python, PyTorch/TensorFlow, Hugging Face, cloud MLOps, and vector databases.

Open 62d RemoteEurope, North America, UKSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Germany

AI & Machine Learning Engineer - AI Training About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers,…

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Las Vegas, US

Paid gig via Prolific's Expert Network: senior AI/ML engineers work remotely on tasks training and evaluating LLMs — auditing model reasoning, ML code, and providing RLHF feedback — earning up to $80/hour. Core stack: Python, PyTorch or TensorFlow, Hugging Face, and RAG/RLHF tooling.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Memphis, US

Remote gig-style role: senior AI/ML engineers join Prolific's Expert Network as paid participants to train and evaluate LLMs — auditing model logic and code, refining RLHF feedback, and benchmarking outputs. Core stack is Python, PyTorch/TensorFlow, Hugging Face, and cloud/MLOps tooling; pays up to $80/hour.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Milwaukee, US

Gig-style AI training work through Prolific's Expert Network: experienced ML engineers get paid per task (up to $80/hour) to evaluate and train LLMs — auditing model reasoning, ML code, and RLHF feedback. Core tech: Python, PyTorch or TensorFlow/Keras, Hugging Face, plus RLHF/RAG workflows and MLOps tooling.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Nashville, US

Gig-style role joining Prolific's Expert Network as a paid participant to train and evaluate LLMs: reviewing AI-generated ML explanations, auditing code/notebooks, providing RLHF feedback, and benchmarking model outputs. Requires strong ML/DL expertise (PyTorch or TensorFlow, Python, LLM workflows); pays up to $80/hour, fully remote.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Oklahoma City, US

Join Prolific's Expert Network as a paid AI/ML engineer-participant helping train and evaluate LLMs: auditing model architectures and code, refining RLHF feedback, and benchmarking outputs. Work is remote, flexible-hours, and pays up to $80/hour, using Python, PyTorch/TensorFlow, Hugging Face, and LLM tooling like LangChain.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Omaha, US

Paid AI-training work as a participant in Prolific's Expert Network: senior ML engineers train and evaluate LLMs by auditing model logic, code, and chain-of-thought reasoning, and providing RLHF feedback. Core stack is Python, PyTorch/TensorFlow, Hugging Face, and LLM workflows like RLHF and RAG.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Portland, US

Gig-style role in Prolific's Expert Network: senior AI/ML engineers get paid (up to $80/hour) to train and evaluate LLMs — auditing model reasoning, ML code, and providing RLHF feedback. Core stack includes Python, PyTorch/TensorFlow, Hugging Face, and RAG/RLHF workflows.

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Raleigh, US

A paid participant role in Prolific's Expert Network: ML/AI engineers get paid hourly (up to $80/hr) to train and evaluate LLMs — auditing model reasoning and ML code, and providing RLHF feedback. Requires deep ML expertise with PyTorch or TensorFlow, Python, and hands-on LLM workflows (prompt engineering, RLHF, RAG).

Open 62d RemoteNorth AmericaSenior 1 question Licensed UK sponsor

AI Engineer/ML Engineer - Senior Developers - AI Training - Sacramento, US

ML engineers join Prolific's Expert Network as paid participants to train and evaluate LLMs remotely — auditing AI-generated explanations and code, refining RLHF feedback, and benchmarking model outputs for up to $80/hour on flexible tasks. Core stack: Python, PyTorch/TensorFlow, Hugging Face, and cloud/MLOps tools like SageMaker and Vertex AI.