Machine Learning Engineer
Springfield, IL · On-site
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 ...
Machine Learning Engineer
Springfield, IL · On-site
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 ...
Machine Learning Engineer
Peoria, IL · On-site
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 ...
Machine Learning Engineer
Peoria, IL · On-site
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 ...
Machine Learning Engineer
Joliet, IL · On-site
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 ...
Machine Learning Engineer
Joliet, IL · On-site
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 ...
Machine Learning Engineer
Springfield, IL · On-site
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 ...
Machine Learning Engineer
Springfield, IL · On-site
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 ...
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 ...
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 ...
Machine Learning Engineer
Dekalb, IL · On-site
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 ...
Machine Learning Engineer
Dekalb, IL · On-site
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 ...
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 ...
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 ...
Machine Learning Engineer
Rockford, IL · On-site
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 ...
Machine Learning Engineer
Rockford, IL · On-site
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 ...
Machine Learning Engineer
Aurora, IL · On-site
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 ...
Machine Learning Engineer
Aurora, IL · On-site
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 ...
Machine Learning Engineer
Peoria, IL · On-site
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 ...
Machine Learning Engineer
Peoria, IL · On-site
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 ...
AI Machine Learning Engineer
Chicago, IL · Hybrid
$100K - $151K/yr
The Hartford is seeking AI Machine Learning Engineer to build Machine Learning Operations (MLOps ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
AI Machine Learning Engineer
Chicago, IL · Hybrid
$100K - $151K/yr
The Hartford is seeking AI Machine Learning Engineer to build Machine Learning Operations (MLOps ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
AI Engineer
Schaumburg, IL · On-site
Agentic AI/AI Engineer - Generative AI & Machine Learning Location: Schaumburg, IL (Hybrid - 3 ... Engage in full-stack development, with a focus on Python for backend services and React for ...
New
AI Engineer
Schaumburg, IL · On-site
Agentic AI/AI Engineer - Generative AI & Machine Learning Location: Schaumburg, IL (Hybrid - 3 ... Engage in full-stack development, with a focus on Python for backend services and React for ...
New
Python/R Programmer
Chicago, IL · On-site
We need data science/machine learning/data analyst and Java full stack candidates. Preferred skills ... For data science/data analyst/AI/machine learning positions preferred skills include an associate ...
Python/R Programmer
Chicago, IL · On-site
We need data science/machine learning/data analyst and Java full stack candidates. Preferred skills ... For data science/data analyst/AI/machine learning positions preferred skills include an associate ...
Machine Learning Engineer
Chicago, IL · Remote
$96K - $131K/yr
Develop and implement analytics techniques to transform data into meaningful information using data-oriented programming languages, visualization software, data modeling, and machine learning to ...
Machine Learning Engineer
Chicago, IL · Remote
$96K - $131K/yr
Develop and implement analytics techniques to transform data into meaningful information using data-oriented programming languages, visualization software, data modeling, and machine learning to ...
We need Data Science/Machine learning/Data Analyst and Java Full stack candidates Preferred SKILLS ... Associate or Bachelors degree or Masters degree in Computer Science, Computer Engineering ...
We need Data Science/Machine learning/Data Analyst and Java Full stack candidates Preferred SKILLS ... Associate or Bachelors degree or Masters degree in Computer Science, Computer Engineering ...
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
New
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Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
New
Senior AI Machine Learning Engineer
Chicago, IL · On-site +1
$107K - $147K/yr
As a Senior Machine Learning Engineer , you will play a critical role in designing, building, and ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
Senior AI Machine Learning Engineer
Chicago, IL · On-site +1
$107K - $147K/yr
As a Senior Machine Learning Engineer , you will play a critical role in designing, building, and ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
New
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
New
Senior AI Machine Learning Engineer
Chicago, IL · Hybrid
$126K - $166K/yr
As a Senior Machine Learning Engineer , you will play a critical role in designing, building, and ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
Senior AI Machine Learning Engineer
Chicago, IL · Hybrid
$126K - $166K/yr
As a Senior Machine Learning Engineer , you will play a critical role in designing, building, and ... Our products are delivered with a full monitoring solution to ensure our products continue to ...
We need Data Science/Machine learning/Data Analyst and Java Full stack candidates Preferred SKILLS ... Associate or Bachelors degree or Masters degree in Computer Science, Computer Engineering ...
We need Data Science/Machine learning/Data Analyst and Java Full stack candidates Preferred SKILLS ... Associate or Bachelors degree or Masters degree in Computer Science, Computer Engineering ...
Associate Full Stack Machine Learning Engineer information
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Full-time
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Job description
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