Machine Learning Engineer
Dover, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Dover, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Dover, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Newark, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Newark, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Middletown, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Middletown, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Wilmington, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Wilmington, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Milford, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Milford, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Smyrna, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Smyrna, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Seaford, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Seaford, DE · On-site
... deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed ... HPC (AWS, GCP, SLURM, or Ray) Solid understanding of evaluation methodology -- held-out sets ...
Wilmington, DE · On-site
$48.75 - $67.25/hr
Python, AWS, Terraform, AI/ML * Expert proficiency in Python programming language with strong ... Nice to have exposure to Machine Learning and AI frameworks * Familiarity with AI-assisted ...
Wilmington, DE · On-site
$48.75 - $67.25/hr
Python, AWS, Terraform, AI/ML * Expert proficiency in Python programming language with strong ... Nice to have exposure to Machine Learning and AI frameworks * Familiarity with AI-assisted ...
Newark, DE · On-site
$100 - $130/hr
... machine learning algorithms (supervised, unsupervised, deep learning, reinforcement learning). * Experience with cloud‑based platforms (AWS, Azure, Google Cloud) and familiarity with data ...
Newark, DE · On-site
$100 - $130/hr
... machine learning algorithms (supervised, unsupervised, deep learning, reinforcement learning). * Experience with cloud‑based platforms (AWS, Azure, Google Cloud) and familiarity with data ...
Wilmington, DE · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Collaborate closely with the MLOps, product teams, business stakeholders, machine learning ... Experience with GCP/AWS cloud platforms. * Strong knowledge of and measurable hands-on experience ...
Wilmington, DE · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Collaborate closely with the MLOps, product teams, business stakeholders, machine learning ... Experience with GCP/AWS cloud platforms. * Strong knowledge of and measurable hands-on experience ...
Wilmington, DE · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Collaborate closely with the MLOps, product teams, business stakeholders, machine learning ... Experience with GCP/AWS cloud platforms. * Strong knowledge of and measurable hands-on experience ...
Wilmington, DE · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
Collaborate closely with the MLOps, product teams, business stakeholders, machine learning ... Experience with GCP/AWS cloud platforms. * Strong knowledge of and measurable hands-on experience ...
Wilmington, DE · On-site
$120 - $160/hr
Medical
Retirement
Extensive hands‑on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit‑learn, AWS Bedrock, Transformers, LangChain/LngGraph.
Wilmington, DE · On-site
$120 - $160/hr
Medical
Retirement
Extensive hands‑on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit‑learn, AWS Bedrock, Transformers, LangChain/LngGraph.
$140 - $190/hr
As an AWS Lead Software Engineer-Java at JPMorgan Chase within the Consumer and Community Banking ... artificial intelligence, machine learning, mobile, etc.) * Ability to tackle design and ...
$140 - $190/hr
As an AWS Lead Software Engineer-Java at JPMorgan Chase within the Consumer and Community Banking ... artificial intelligence, machine learning, mobile, etc.) * Ability to tackle design and ...
Wilmington, DE · On-site
$140 - $190/hr
As an AWS Lead Software Engineer-Java at JPMorgan Chase within the Consumer and Community Banking ... artificial intelligence, machine learning, mobile, etc.) * Ability to tackle design and ...
Wilmington, DE · On-site
$140 - $190/hr
As an AWS Lead Software Engineer-Java at JPMorgan Chase within the Consumer and Community Banking ... artificial intelligence, machine learning, mobile, etc.) * Ability to tackle design and ...
$55.25 - $73.50/hr
Medical
Retirement
AWS certification preferred. JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most ...
$55.25 - $73.50/hr
Medical
Retirement
AWS certification preferred. JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most ...
Wilmington, DE · On-site
$55.25 - $73.50/hr
Medical
Retirement
AWS certification preferred. JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most ...
Wilmington, DE · On-site
$55.25 - $73.50/hr
Medical
Retirement
AWS certification preferred. JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
Medical
Retirement
Extensive hands-on technical experience with machine learning frameworks, libraries, and APIs, such as TensorFlow, PyTorch, Scikit-learn, AWS Bedrock, Transformers, LangChain/LngGraph. * Experience ...
Wilmington, DE · On-site
$55.25 - $73.50/hr
Medical
Retirement
... AWS Step Functions). ⢠Familiarity with Databricks jobs, clusters, and workspace operations (experience using Python or REST APIs to interact is a plus). ⢠Infrastructure-as-Code experience;
New
Wilmington, DE · On-site
$55.25 - $73.50/hr
Medical
Retirement
... AWS Step Functions). ⢠Familiarity with Databricks jobs, clusters, and workspace operations (experience using Python or REST APIs to interact is a plus). ⢠Infrastructure-as-Code experience;
New
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Full-time
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About Us
We are AI researchers and builders who understand how to curate data and RL environments that truly improve models. We curated OpenThoughts, one of the best open reasoning datasets, and have trained SOTA models such as Bespoke-MiniCheck and Bespoke-MiniChart.
We are embarked on a journey to build Environments that are entire digital worlds that can be used to push the frontier of agents.
What You'll Be Working On
You will work directly with our research team on RL environment and task creation for agent training. This means designing observation spaces, action spaces, reward signals, and success criteria for new environments — and building the infrastructure that makes world-scale RL training possible. This is a high-ownership role; you will be building novel systems, not maintaining legacy ones.
Must-Have Skills
3+ years of ML engineering experience — model training, fine-tuning, or post-training pipelines in research or production
Strong Python and deep learning proficiency (PyTorch preferred; familiar with training loops, optimizers, mixed precision)
Hands-on experience with LLM post-training — SFT, RLHF, PPO, DPO, or reward model training — and understanding of how training data quality affects model behavior
Familiarity with RL frameworks (Gymnasium, dm_env) and the ability to design or modify reward functions for agent training objectives
Experience running experiments at scale on cloud or HPC (AWS, GCP, SLURM, or Ray)
Solid understanding of evaluation methodology — held-out sets, benchmark design, avoiding train/eval contamination