Machine Learning Engineer
Tucson, 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 ...
Tucson, 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 ...
Tucson, 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 ...
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 ...
Tucson, AZ · On-site
$139K - $168K/yr
Medical
Dental
Vision
PTO
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 ...
Tucson, AZ · On-site
$139K - $168K/yr
Medical
Dental
Vision
PTO
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 ...
Tucson, AZ · Remote
$18 - $40/hr
Deep knowledge of supervised learning, unsupervised learning, feature engineering, model selection ... Familiar with machine learning curricula and common challenges such as understanding bias-variance ...
Tucson, AZ · Remote
$18 - $40/hr
Deep knowledge of supervised learning, unsupervised learning, feature engineering, model selection ... Familiar with machine learning curricula and common challenges such as understanding bias-variance ...
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Quick apply
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Tucson, AZ · On-site
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Tucson, AZ · On-site
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Tucson, AZ · On-site
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Tucson, AZ · On-site
$115K - $152K/yr
Collaborate with researchers on artificial intelligence, machine learning, and computer vision ... SENIOR SOFTWARE ENGINEER I: * Bachelor's degree in physics, astronomy, mathematics, computer ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179 - $226/hr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179K - $226K/yr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179K - $226K/yr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179K - $226K/yr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
$179K - $226K/yr
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
Tucson, AZ · On-site
Serve as the organization's senior technical authority for AI, machine learning, and advanced analytics. * Mentor engineers, scientists, and technical teams in AI technologies, architecture, and ...
... customers and senior engineers • Able to assist in creation of cutting-edge solutions for ... CUDA • Machine learning • Virtualization and Cloud computing • Visualization of large ...
... customers and senior engineers • Able to assist in creation of cutting-edge solutions for ... CUDA • Machine learning • Virtualization and Cloud computing • Visualization of large ...
Tucson, AZ · On-site
This role ranges from entry-level engineers learning core competencies to senior engineers leading ... Machine Solutions, Inc.
Tucson, AZ · On-site
This role ranges from entry-level engineers learning core competencies to senior engineers leading ... Machine Solutions, Inc.
SENIOR/PRINCIPAL SYSTEMS ENGINEER (EO/IR) - SECRET CLEARANCE Rocket Labs Optical Systems division ... Collaborate with researchers on projects related to machine learning, artificial intelligence, and ...
SENIOR/PRINCIPAL SYSTEMS ENGINEER (EO/IR) - SECRET CLEARANCE Rocket Labs Optical Systems division ... Collaborate with researchers on projects related to machine learning, artificial intelligence, and ...
Tucson, AZ · On-site
$101K - $124K/yr
Medical
Dental
Life
Retirement
Apply artificial intelligence, machine learning, and automation technologies to improve operational ... Bachelor Degree in Electrical Engineering, Computer Engineering, Computer Science, Math or related ...
Tucson, AZ · On-site
$101K - $124K/yr
Medical
Dental
Life
Retirement
Apply artificial intelligence, machine learning, and automation technologies to improve operational ... Bachelor Degree in Electrical Engineering, Computer Engineering, Computer Science, Math or related ...
$51.2K - $60.8K
1% of jobs
$60.8K - $70.5K
3% of jobs
$70.5K - $80.2K
7% of jobs
$89.7K is the 25th percentile. Wages below this are outliers.
$80.2K - $89.9K
14% of jobs
$89.9K - $99.6K
17% of jobs
The median wage is $103.6K / yr.
$99.6K - $109.3K
19% of jobs
$109.3K - $119K
13% of jobs
$120.2K is the 75th percentile. Wages above this are outliers.
$119K - $128.7K
11% of jobs
$128.7K - $138.4K
7% of jobs
$138.4K - $148.1K
5% of jobs
$148.1K - $157.8K
3% of jobs
$51.2K
$108.8K
$157.8K
| Aspect | Senior Machine Learning Engineer | Data Scientist |
|---|---|---|
| Required Credentials | Bachelor's/Master's in CS, ML, or related; experience with ML frameworks | Bachelor's/Master's in CS, Statistics, or related; strong analytical skills |
| Work Environment | Develops and deploys ML models in production systems | Analyzes data, builds models, and provides insights |
| Industry Usage | Tech, finance, healthcare, e-commerce | Research, finance, marketing, tech |
While both roles require strong technical skills and knowledge of machine learning, Senior Machine Learning Engineers focus more on deploying scalable ML solutions in production environments, whereas Data Scientists primarily analyze data and develop models for insights. The roles often overlap but differ in their core responsibilities and focus areas.
The most popular types of Machine Learning Engineer jobs in Tucson, AZ are:
For Senior Machine Learning Engineer jobs in Tucson, AZ, the most frequently searched job titles are:
The top searched job categories for Senior Machine Learning Engineer jobs in Tucson, AZ are:
Cities near Tucson, AZ with the most Senior Machine Learning Engineer job openings:

Full-time
This job post has expired today. Applications are no longer accepted.
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