Machine Learning Engineer
Mesa, AZ · 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 ...
Mesa, AZ · 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 ...
Mesa, AZ · 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 ...
Chandler, AZ · 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 ...
Chandler, AZ · 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 ...
Scottsdale, AZ · 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 ...
Scottsdale, AZ · 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 ...
$103K - $142K/yr
Machine Learning Engineer / Data Scientist** to join our team, working on agent harness research and model fine tuning. This role sits at the intersection of research and engineering: the ideal ...
$103K - $142K/yr
Machine Learning Engineer / Data Scientist** to join our team, working on agent harness research and model fine tuning. This role sits at the intersection of research and engineering: the ideal ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
As a Machine Learning Engineer, you will have the opportunity to collaborate closely with senior engineers and product leaders as part of your team. Together, you'll develop and enhance Instacart ...
Be Seen First
Chandler, AZ · On-site
$100K - $110K/yr
... Machine Learning and Generative AI frameworks • Strong engineering fundamentals and problem-solving skills • A builder mindset -- curious, resourceful, fast-moving, and focused on outcomes ...
Quick apply
Be Seen First
Chandler, AZ · On-site
$100K - $110K/yr
... Machine Learning and Generative AI frameworks • Strong engineering fundamentals and problem-solving skills • A builder mindset -- curious, resourceful, fast-moving, and focused on outcomes ...
Scottsdale, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
Scottsdale, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
Mesa, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
Mesa, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
Chandler, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
Chandler, AZ · On-site
$139K - $168K/yr
Our team of Machine Learning Engineers have high impact by advancing the current Machine Learning systems, building performant and reliable LLM applications and collaborating with our product team to ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
We use machine learning and Internet-scale data to elevate customer experience, improve efficiency ... The Search and Discovery ML team at Instacart works alongside world-class engineers, data ...
Scottsdale, AZ · On-site
Google Cloud Professional Machine Learning Engineer Google Cloud Professional Data Engineer AWS Certified Machine Learning Specialty Certified Kubernetes Admin(CKA) Google Professional Cloud ...
Quick apply
Scottsdale, AZ · On-site
Google Cloud Professional Machine Learning Engineer Google Cloud Professional Data Engineer AWS Certified Machine Learning Specialty Certified Kubernetes Admin(CKA) Google Professional Cloud ...
$92K - $125K/yr
Provide technical leadership to junior scientists, guiding the transition of R&D concepts into ... Join force with MLEs or firmware or hardware engineers to leverage hardware accelerators and ...
$92K - $125K/yr
Provide technical leadership to junior scientists, guiding the transition of R&D concepts into ... Join force with MLEs or firmware or hardware engineers to leverage hardware accelerators and ...
Python Unix machine learning Support Engineer Job Location : Chandler, AZ (ONSITE) Job Type : Full-Time Python Unix machine learning Support Engineer Must Have Technical/Functional Skills Unix ...
Python Unix machine learning Support Engineer Job Location : Chandler, AZ (ONSITE) Job Type : Full-Time Python Unix machine learning Support Engineer Must Have Technical/Functional Skills Unix ...
Scottsdale, AZ · On-site
$92K - $125K/yr
Provide technical leadership to junior scientists, guiding the transition of R&D concepts into ... Join force with MLEs or firmware or hardware engineers to leverage hardware accelerators and ...
Scottsdale, AZ · On-site
$92K - $125K/yr
Provide technical leadership to junior scientists, guiding the transition of R&D concepts into ... Join force with MLEs or firmware or hardware engineers to leverage hardware accelerators and ...
Phoenix, AZ · On-site +1
$157K - $234K/yr
... of machine learning models. - Collaborate with data scientists and engineers to understand model requirements and optimize pipeline processes. - Automate the training, testing and deployment ...
Quick apply
Phoenix, AZ · On-site +1
$157K - $234K/yr
... of machine learning models. - Collaborate with data scientists and engineers to understand model requirements and optimize pipeline processes. - Automate the training, testing and deployment ...
Phoenix, AZ · On-site +1
$157K - $234K/yr
... of machine learning models. - Collaborate with data scientists and engineers to understand model requirements and optimize pipeline processes. - Automate the training, testing and deployment ...
Phoenix, AZ · On-site +1
$157K - $234K/yr
... of machine learning models. - Collaborate with data scientists and engineers to understand model requirements and optimize pipeline processes. - Automate the training, testing and deployment ...
$31.5K - $38K
3% of jobs
$38K - $44.5K
20% of jobs
$45.9K is the 25th percentile. Wages below this are outliers.
$44.5K - $51K
7% of jobs
$51K - $57.6K
6% of jobs
$57.6K - $64.1K
12% of jobs
The median wage is $64.5K / yr.
$64.1K - $70.6K
17% of jobs
$74K is the 75th percentile. Wages above this are outliers.
$70.6K - $77.1K
17% of jobs
$77.1K - $83.6K
7% of jobs
$83.6K - $90.1K
4% of jobs
$90.1K - $96.6K
3% of jobs
$96.6K - $103.1K
2% of jobs
$31.5K
$67.6K
$103.1K
| Aspect | Junior Machine Learning Engineer | Data Scientist |
|---|---|---|
| Required Credentials | Bachelor's in CS, Data Science, or related; some experience with ML frameworks | Bachelor's or higher in CS, Statistics, or related; often advanced certifications |
| Work Environment | Developing and deploying ML models, coding, testing | Data analysis, statistical modeling, interpreting data insights |
| Employer & Industry Usage | Tech companies, startups, AI-focused firms | Finance, healthcare, tech, consulting |
| Search & Comparison Intent | Yes | Yes |
While both roles involve working with data and machine learning, Junior Machine Learning Engineers focus on building and deploying models, often with coding and engineering skills. Data Scientists analyze data, create statistical models, and interpret insights. The roles overlap but differ mainly in their core responsibilities and skill emphasis.
As a junior machine learning engineer, you work in AI, performing research with algorithms and data modeling techniques. Machine learning involves using large collections of data to create systems that are capable of making predictions, and in this field, your duties and responsibilities revolve around using advanced mathematics to design applications for use in everything from stock trading to sports betting. Some machine learning efforts involve images, and this branch of the field is known as computer vision, while other techniques which focus on text are called natural language processing (NLP). Given these divisions, titles in machine learning include computer vision engineer, NLP scientist, or simply research scientist.

Full-time
Re-posted 14 days ago
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