Machine Learning Engineer
Fresno, CA · 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 ...
Fresno, CA · 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 ...
Fresno, CA · 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 ...
Position Summary Software Engineer III- AI & Engineering/Software as a Service Join our AI ... Python, Java, .NET/C#, Go, or Node.js) and a modern front-end framework. * 4+ years building ...
Position Summary Software Engineer III- AI & Engineering/Software as a Service Join our AI ... Python, Java, .NET/C#, Go, or Node.js) and a modern front-end framework. * 4+ years building ...
Fresno, CA · On-site
The Construction Engineer will support the California High-Speed Rail program by contributing to ... Basic knowledge of SQL, Python, or other data analysis tools * Experience supporting reporting and ...
Fresno, CA · On-site
The Construction Engineer will support the California High-Speed Rail program by contributing to ... Basic knowledge of SQL, Python, or other data analysis tools * Experience supporting reporting and ...
Fresno, CA · On-site
The Construction Engineer will support the California High-Speed Rail program by contributing to ... Python, or other data analysis tools Experience supporting reporting and analytics in complex ...
Fresno, CA · On-site
The Construction Engineer will support the California High-Speed Rail program by contributing to ... Python, or other data analysis tools Experience supporting reporting and analytics in complex ...
We are seeking a Senior Analytics Engineer to build measurement insights, data products, and ... Expert-level SQL and strong proficiency in Python or R for analytical prototyping, statistical ...
We are seeking a Senior Analytics Engineer to build measurement insights, data products, and ... Expert-level SQL and strong proficiency in Python or R for analytical prototyping, statistical ...
Strong programming skills in Python, with experience in frameworks like TensorFlow, PyTorch, or Hugging Face. * Proficiency in designing and deploying machine learning models, particularly in ...
Strong programming skills in Python, with experience in frameworks like TensorFlow, PyTorch, or Hugging Face. * Proficiency in designing and deploying machine learning models, particularly in ...
Fresno, CA · On-site
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
Fresno, CA · On-site
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
Fresno, CA · On-site
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
Fresno, CA · On-site
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
Basic knowledge of SQL, Python, or other data analysis tools is a plus * Experience supporting ... and engineering to program and construction management. AECOM is a Fortune 500 firm that had ...
$57 - $76.75/hr
... Python, JavaScript, Java, or another programming language * 1+ years of experience using AI-assisted development tools such as Claude, GitHub Copilot, or Cursor in a professional or project-based ...
$57 - $76.75/hr
... Python, JavaScript, Java, or another programming language * 1+ years of experience using AI-assisted development tools such as Claude, GitHub Copilot, or Cursor in a professional or project-based ...
$141K - $189K/yr
Proficiency in at least one programming or scripting language (e.g., Python, PowerShell) * Experience with on-premises virtualization and storage solutions (e.g., VMware, NetApp Storage, Dell EMC ...
$141K - $189K/yr
Proficiency in at least one programming or scripting language (e.g., Python, PowerShell) * Experience with on-premises virtualization and storage solutions (e.g., VMware, NetApp Storage, Dell EMC ...
Hudson River Trading (HRT) is looking for Systems Engineers to join our growing Research ... Python and Shell scripting experience * Attention to detail needed to manage and debug production ...
Hudson River Trading (HRT) is looking for Systems Engineers to join our growing Research ... Python and Shell scripting experience * Attention to detail needed to manage and debug production ...
Fresno, CA · On-site
$108K - $135K/yr
Experience with reliability and statistical software tools such as ReliaSoft Weibull++, Ansys Sherlock, Minitab, and programming/analytical tools such as Python, R, or MATLAB. * Strong analytical ...
Fresno, CA · On-site
$108K - $135K/yr
Experience with reliability and statistical software tools such as ReliaSoft Weibull++, Ansys Sherlock, Minitab, and programming/analytical tools such as Python, R, or MATLAB. * Strong analytical ...
Fresno, CA · On-site +1
$80/hr
Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid ... Language & Data: advanced Python (NumPy, Pandas, Scikit-learn) and experience with Hugging Face ...
Quick apply
Fresno, CA · On-site +1
$80/hr
Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid ... Language & Data: advanced Python (NumPy, Pandas, Scikit-learn) and experience with Hugging Face ...
Fresno, CA · On-site
$139K - $168K/yr
Our small engineering team works on challenging problems every day. We have a culture that's rooted ... Strong knowledge of Python or C++, or the ability to learn them quickly * A passion for learning ...
Fresno, CA · On-site
$139K - $168K/yr
Our small engineering team works on challenging problems every day. We have a culture that's rooted ... Strong knowledge of Python or C++, or the ability to learn them quickly * A passion for learning ...
Have strong programming skills in Python and fluency in data manipulation (SQL, Pandas) and Machine Learning (scikit-learn, XGBoost, Keras/Tensorflow) tools * Have strong analytical skills and ...
Have strong programming skills in Python and fluency in data manipulation (SQL, Pandas) and Machine Learning (scikit-learn, XGBoost, Keras/Tensorflow) tools * Have strong analytical skills and ...
Proficiency in Python development for automation and scripting, including experience building ... Collaborate with Network and Firewall Teams, Application Teams, Server Teams, Cloud Engineering ...
Proficiency in Python development for automation and scripting, including experience building ... Collaborate with Network and Firewall Teams, Application Teams, Server Teams, Cloud Engineering ...
These include frontend and backend engineers, AI research scientists, and others from Amazon ... Proficiency with bash/Python scripting in Linux environments * Proficiency in Docker and ...
These include frontend and backend engineers, AI research scientists, and others from Amazon ... Proficiency with bash/Python scripting in Linux environments * Proficiency in Docker and ...
Fresno, CA · On-site
$113K - $136K/yr
These include frontend and backend engineers, AI research scientists, and others from Amazon ... Proficiency with bash/Python scripting in Linux environments * Proficiency in Docker and ...
Fresno, CA · On-site
$113K - $136K/yr
These include frontend and backend engineers, AI research scientists, and others from Amazon ... Proficiency with bash/Python scripting in Linux environments * Proficiency in Docker and ...
Fresno, CA · On-site
$202K - $234K/yr
Experience creating LLM-backed tools involving prompt engineering and automated evals * 5+ years of experience in full-stack development with strong skills in Python, React and JavaScript * Excellent ...
Fresno, CA · On-site
$202K - $234K/yr
Experience creating LLM-backed tools involving prompt engineering and automated evals * 5+ years of experience in full-stack development with strong skills in Python, React and JavaScript * Excellent ...
$42.78 - $46.83
1% of jobs
$46.83 - $50.88
1% of jobs
$50.88 - $54.93
1% of jobs
$54.93 - $58.98
2% of jobs
$58.98 - $63.03
10% of jobs
$65.99 is the 25th percentile. Wages below this are outliers.
$63.03 - $67.09
14% of jobs
$67.09 - $71.14
20% of jobs
The median wage is $71.31 / hr.
$71.14 - $75.19
24% of jobs
$76.20 is the 75th percentile. Wages above this are outliers.
$75.19 - $79.24
6% of jobs
$79.24 - $83.29
5% of jobs
$83.29 - $87.34
15% of jobs
$42
$71
$87
A Python programmer uses the programming language called Python to write code for various applications, including big data manipulation, web servers, program scripting, and more. In this career, the software allows you to program quicker using fewer lines, which creates an easy-to-read code. You can find work in web or game development, data visualization, and analyzing data, among others. Your job duties vary based on your specialization, but they usually include working with files and extensive support libraries, creating, testing and implementing new or updated applications, and examining the code to spot problems.
| Aspect | Python Programmer | Software Developer |
|---|---|---|
| Required Credentials | Typically a degree in Computer Science or related field; proficiency in Python | Degree in Computer Science or related; proficiency in multiple programming languages including Python |
| Work Environment | Often in tech companies, startups, or freelance projects focused on Python-based tasks | In various industries, working on full software solutions, often across multiple languages and platforms |
| Employer & Industry Usage | Tech firms, data analysis, automation projects | Software firms, IT departments, app development |
While a Python Programmer specializes in Python coding, a Software Developer works on broader software solutions, often using multiple languages. Both roles require similar foundational skills, but Software Developers typically handle more comprehensive project responsibilities.

Full-time
Posted 9 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