← All jobs in United States

Remote · Flexible hours · Data Scientist

Machine Learning Engineer - Model Evaluation & Experimentation

Weekday AI · United States · United States

Remote Part time USD 60–90 / hour Posted Open until 18 Oct 2026
  • Remote This is a fully remote, full-time engagement requiring approximately 35 hours per week . — job description

The job, in the employer's words

This role is for one of our clients

Compensation: $60-$90 per hour

Join a pioneering AI initiative focused on building the next generation of evaluation benchmarks for frontier AI models. We are seeking experienced Machine Learning Engineers and Researchers to bring hands-on expertise in model development, experimentation, and evaluation to create rigorous benchmark tasks for advanced AI systems.

In this role, you will design sophisticated, multi-step machine learning challenges inspired by real-world research workflows. From implementing experimental ideas and running training pipelines to analyzing model behavior and validating results, you will help establish high-quality evaluation benchmarks that reveal the strengths and limitations of frontier AI models.

This is a fully remote, full-time engagement requiring approximately 35 hours per week.

Requirements

Key Responsibilities

  • Design realistic machine learning benchmark tasks based on research workflows, including model implementation, experimentation, training, evaluation, and performance analysis.
  • Translate open-ended research concepts into structured, reproducible evaluation tasks with clearly defined success criteria.
  • Implement machine learning solutions using Python, execute experiments, and produce reference implementations that demonstrate correct methodology and expected outcomes.
  • Develop benchmark tasks involving reinforcement learning concepts such as reward functions, policy optimization, training dynamics, and model behavior where applicable.
  • Evaluate AI-generated solutions by identifying implementation errors, experimental flaws, incorrect reasoning, and unsupported conclusions.
  • Collaborate with AI researchers and fellow subject matter experts to continuously improve benchmark quality, technical rigor, and evaluation consistency.

Required Qualifications

  • Master's degree, PhD, or equivalent practical experience in Machine Learning, Computer Science, Artificial Intelligence, Data Science, or another quantitative STEM discipline.
  • Minimum 1 year of professional experience in machine learning research, research engineering, applied AI, or another research-intensive technical role.
  • Strong hands-on experience designing, training, evaluating, and optimizing machine learning models through complete experimental workflows.
  • Practical experience conducting machine learning experiments, including experiment setup, hyperparameter tuning, execution, validation, and analysis.
  • Strong understanding of modern Large Language Models (LLMs), their capabilities, limitations, and evaluation methodologies.
  • Proficiency in Python and Git, with experience working in both script-based and notebook-based development environments.
  • Familiarity with reinforcement learning concepts—including reward functions, policy optimization, and training behavior—is preferred.
  • Experience with AI evaluation, benchmark development, AI training, or task authoring is highly desirable.
  • Excellent analytical thinking, creativity, attention to detail, and the ability to solve complex, open-ended technical problems independently.
  • Strong written communication skills for documenting experimental methodologies and technical findings.
  • Ability to commit approximately 35 hours per week on a consistent basis.

Preferred Qualifications

  • Experience developing or evaluating large language models, foundation models, or generative AI systems.
  • Background in reinforcement learning, deep learning, distributed training, or model optimization.
  • Familiarity with benchmark design, AI safety evaluations, or research-quality experimentation.
  • Experience contributing to research publications, open-source machine learning projects, or advanced AI systems.

Why Join

  • Help shape how next-generation AI systems are evaluated through rigorous machine learning experimentation.
  • Collaborate with leading AI researchers developing frontier evaluation benchmarks.
  • Apply your expertise to improve AI reasoning, model quality, and experimental reliability.
  • Contribute directly to benchmark development that advances the capabilities of state-of-the-art AI systems.
  • Enjoy the flexibility of a fully remote engagement while working on impactful AI research initiatives.

Equal Opportunity

We are committed to fostering an inclusive and diverse environment where all qualified applicants receive equal consideration. Reasonable accommodations are available throughout the application and engagement process.

Contract & Engagement Details

  • Independent contractor engagement.
  • Fully remote with flexible working hours.
  • Expected commitment of approximately 35 hours per week.
  • Project duration may be extended, shortened, or concluded based on project requirements and individual performance.
  • Work does not require access to confidential or proprietary information from any current or former employer.
  • Payments are issued weekly based on approved work completed.
  • At this time, we are unable to support H1-B or STEM OPT candidates.

Benefits mentioned

  • Join a pioneering AI initiative focused on building the next generation of evaluation benchmarks for frontier AI models. We are seeking experienced Machine Learning Engineers and Researchers to bring hands-on expertise in model development, experimentation, and evaluation to create rigorous benchmark tasks for advanced AI systems.
  • In this role, you will design sophisticated, multi-step machine learning challenges inspired by real-world research workflows. From implementing experimental ideas and running training pipelines to analyzing model behavior and validating results, you will help establish high-quality evaluation benchmarks that reveal the strengths and limitations of frontier AI models.
  • Help shape how next-generation AI systems are evaluated through rigorous machine learning experimentation.
  • Collaborate with leading AI researchers developing frontier evaluation benchmarks.
  • Apply your expertise to improve AI reasoning, model quality, and experimental reliability.
  • Contribute directly to benchmark development that advances the capabilities of state-of-the-art AI systems.
  • Enjoy the flexibility of a fully remote engagement while working on impactful AI research initiatives.

Requirements mentioned

  • Master's degree, PhD, or equivalent practical experience in Machine Learning, Computer Science, Artificial Intelligence, Data Science, or another quantitative STEM discipline.
  • Minimum 1 year of professional experience in machine learning research, research engineering, applied AI, or another research-intensive technical role.
  • Strong hands-on experience designing, training, evaluating, and optimizing machine learning models through complete experimental workflows.
  • Practical experience conducting machine learning experiments, including experiment setup, hyperparameter tuning, execution, validation, and analysis.
  • Strong understanding of modern Large Language Models (LLMs), their capabilities, limitations, and evaluation methodologies.
  • Proficiency in Python and Git, with experience working in both script-based and notebook-based development environments.
  • Familiarity with reinforcement learning concepts—including reward functions, policy optimization, and training behavior—is preferred.
  • Experience with AI evaluation, benchmark development, AI training, or task authoring is highly desirable.
  • Excellent analytical thinking, creativity, attention to detail, and the ability to solve complex, open-ended technical problems independently.
  • Strong written communication skills for documenting experimental methodologies and technical findings.
  • Ability to commit approximately 35 hours per week on a consistent basis.
  • Experience developing or evaluating large language models, foundation models, or generative AI systems.
  • Background in reinforcement learning, deep learning, distributed training, or model optimization.
  • Familiarity with benchmark design, AI safety evaluations, or research-quality experimentation.
  • Experience contributing to research publications, open-source machine learning projects, or advanced AI systems.

No Mondays shows this listing as the employer published it. Check the details on the employer's site before you apply.

More remote jobs in United States

Pinterest · San Francisco · yesterday

Staff Machine Learning Engineer

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lif…

Remote
Imagine Pediatrics · United States (Remote) · yesterday

Senior Data Scientist

Who We Are Imagine Pediatrics is a tech enabled, pediatrician led medical group reimagining care for children with special health care needs. We deliver 24/7 virtual firs…

RemoteUSD 145k–180k / year
Smartsheet · -REMOTE, USA- · 2 days ago

Sr. Data Scientist II - Product Analytics

For over 20 years, Smartsheet has empowered teams to manage work seamlessly and scale solutions smarter. Now, in our most ambitious chapter yet, we are uniting human team…

RemoteUSD 155k–185k / year
Chime Financial, Inc · Chicago · 2 days ago

Lead Data Scientist - Credit Risk

About the Role We are looking for an experienced Credit Risk Data Scientist who is data-driven, has strong analytical and technical skills, and operates with a high degre…

RemoteUSD 152k–210k / year
Stellar Cyber · United States · 3 days ago

Security Machine Learning Engineer/ Researcher

Join a fast-growing global leader in cybersecurity, trusted by some of the biggest names in the industry. In addition to some of the world’s largest enterprises and gover…

RemoteUSD 150k–215k / year

22,719 live roles · See all →

Other roles at Weekday AI

Weekday AI · India · 2 days ago

SF OMS Developer

𝗧𝗵𝗶𝘀 𝗿𝗼𝗹𝗲 𝗶𝘀 𝗳𝗼𝗿 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗪𝗲𝗲𝗸𝗱𝗮𝘆'𝘀 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗦𝗮𝗹𝗮𝗿𝘆 𝗿𝗮𝗻𝗴𝗲: 𝗥𝘀 𝟭𝟬𝟬𝟬𝟬𝟬𝟬 - 𝗥𝘀 𝟮𝟱𝟬𝟬𝟬𝟬𝟬 (𝗶𝗲 𝗜𝗡𝗥 𝟭𝟬-𝟮𝟱 𝗟𝗣𝗔) Experience: 4+ yrs Location: Remote (India) Job Type: Remote We are…

Remote
Weekday AI · India · 2 days ago

gtm engineer

𝗧𝗵𝗶𝘀 𝗿𝗼𝗹𝗲 𝗶𝘀 𝗳𝗼𝗿 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗪𝗲𝗲𝗸𝗱𝗮𝘆'𝘀 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗦𝗮𝗹𝗮𝗿𝘆 𝗿𝗮𝗻𝗴𝗲: 𝗥𝘀 𝟭𝟴𝟬𝟬𝟬𝟬𝟬 - 𝗥𝘀 𝟮𝟴𝟬𝟬𝟬𝟬𝟬 (𝗶𝗲 𝗜𝗡𝗥 𝟭𝟴-𝟮𝟴 𝗟𝗣𝗔) Experience: 5+ yrs Location: Remote (India), India Job Type: Full-t…

Remote
Weekday AI · India · 3 days ago

Head Of Business Development

This role is for one of Weekday’s clients Salary range: Rs 2000000 - Rs 2500000 (ie INR 20 - 25 LPA) Min Experience: 6+ years Location: India JobType: full-time We are lo…

RemoteINR 2000k–2500k / year
Weekday AI · India · 3 days ago

Frontend Web Developer

This role is for one of Weekday’s clients Salary range: Rs 22000000 - Rs 2500000 (ie INR 20 - 25 LPA) Min Experience: 3+ years Location: India JobType: full-time We are l…

RemoteINR 2000k–2500k / year
Weekday AI · India · 3 days ago

Founding Staff Engineer

This role is for one of Weekday’s clients Salary range: Rs 5000000 - Rs 10000000 (ie INR 50 - 100 LPA) Min Experience: 5+ years Location: Remote (India) JobType: full-tim…

RemoteINR 5000k–10000k / year
Weekday AI · India · 3 days ago

Founding Product Designer

This role is for one of Weekday’s clients Salary range: Rs 3000000 - Rs 5000000 (ie INR 30 - 50 LPA) Min Experience: 5+ years Location: Remote (India) JobType: full-time …

RemoteINR 3000k–5000k / year

258 live roles · See all →

Remote share — Data Scientist jobs in United States

85% are remote

378 of 443 jobs we have listed

How long they stay open — Data Scientist jobs in United States

107 days median time open before the listing ended

Based on 33 ended listings

Advertised pay — Data Scientist jobs in United States

USD 195k median advertised pay / year

Middle half: USD 166k – USD 230k

From 314 listings that state pay