Catalog updated: . Page 1 of 3; 42 listings in this area.
Catalog order, without personalized ranking. Compare requirements with the person’s stated experience, education, skills, working languages and country. Unknown requirements are not proof of eligibility. Follow the actual page links below for more roles.
Remote work is not confirmed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
Master’s degree
Named languages
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Listed skills
machine learning
Senior ML Engineer (MSc. or PhD) Pay: $60–$120/hour Location: Global, fully remote Job Type: Contractor (~15 hours per week) Schedule: Flexible—you choose the hours and days you work, including weekends if desired We are looking for highly skilled Machine Learning Experts to contribute to an AI training project involving model development, training and inference systems, numerical computing, performance optimization, and Python. The work involves creating, solving, reviewing, and validating challenging machine-learning engineering tasks. A representative task may require implementing or modifying a model, constructing a reproducible training or inference workflow, optimizing memory or throughput, debugging numerical or system-level failures, and verifying that the resulting implementation satisfies objective correctness and performance requirements. This is a very coding heavy role. Candidates but have experience using coding agents with python in their workflow. What You’ll Work On…
micro1 · Data analysis & BI, Other data science roles, Other science roles
Pay
60–120 per hour (currency unconfirmed)
Country
Remote work is not confirmed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
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Listed skills
ml engineering, data science, mathematics, coding
Role Title: Competitive Data Scientist Pay: $60–$120/hour Location: Global, fully remote Job Type: Contractor (~15 hours per week) Schedule: Flexible-you choose the hours and days you work, including weekends if desired We're looking for data scientists, machine learning practitioners, and applied mathematics experts with competitve Data Science experience. (Kaggle, DrivenData, etc.) You’ll draw on your competition experience, mathematical reasoning, and programming skills to create tasks that require more than a plausible answer. Each task should have a reproducible environment, a verified reference solution, and reliable checks for successful completion. What You’ll Do - Build reproducible environments, prepare relevant data and dependencies, and implement reference solutions. - Develop tests and evaluation criteria that reliably distinguish correct solutions from incomplete or flawed approaches. - Run coding agents against tasks, investigate their failures, and refine the tasks…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
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Listed skills
python, machine learning, statistics, data analysis, experimentation, pandas, data modeling
Role Title: Junior Data Scientist Role Type: Contractor Location: Remote About the Role micro1 is partnering with a leading AI lab to hire data scientists and quantitative professionals from top companies. You'll bring rigor to how AI models handle statistics, machine learning, experimentation, and quantitative reasoning. Scope of Work - Evaluate AI model outputs on data science, statistics, ML, and quantitative problems - Create expert-level prompts, datasets, and reference solutions - Identify flawed methodology, statistical errors, and weak quantitative reasoning - Provide structured feedback that improves model capability Preferred Qualifications - At least one year of experience working at a top company (tech, finance, or research), with at least part of this experience within the past 3 years - Based in an English-speaking country - Clear written communication of technical and statistical concepts
Remote work is listed. Eligible countries: United States. All listed country and residence restrictions must be satisfied. Also check micro1 country restrictions.
Experience
3 years minimum
Education
Bachelor’s degree
Named languages
Not listed
Listed skills
personal identifiable information, quality assurance, attention to detail, data analysis, business data sets
Role Title: Senior Data Analyst Role Type: Contractor Location: Remote, US Based only Job Summary: We are seeking seasoned U.S.-based Senior Data Analysts for a part-time role at the forefront of AI. This opportunity is for accomplished data professionals who want to help shape how advanced AI is trained, evaluated, and applied to real-world data work. We are especially interested in analysts with deep experience working with large business data sets, strong quality assurance practices, and a meticulous eye for detail. Experience handling personally identifiable information (PII) is a plus. Key Responsibilities: - Review data sets for PII, flagging sensitive information and following data privacy best practices. - Review and assess AI responses to data and business analysis scenarios, providing expert feedback to improve accuracy and precision. - Apply QA practices to validate data quality, flag inconsistencies, and verify the correctness of analytical results. - Create objective…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
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Education
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Listed skills
python, llms, aws, langchain, fastapi
Job Title: AI/ML Engineer, Internal Platforms Job Type: Full-time Location: Remote The Role Join our team to build and improve a next-generation AI recruiting agent. You'll develop new capabilities, experiment with the latest LLMs and agent frameworks, and ship production-ready AI features that make the agent smarter, more reliable, and more useful. What You'll Do - Build and improve AI agent capabilities using modern LLMs. - Develop backend services and APIs in Python. - Design and iterate on prompts, workflows, RAG, and agent orchestration. - Evaluate model performance and continuously improve quality through experimentation. - Collaborate with product and engineering teams to deliver AI-powered features. - Deploy and maintain scalable AI systems in production. - Stay current with the latest AI models, tools, and best practices. What We're Looking For - Strong Python software engineering skills. - Experience building applications with LLMs and AI APIs. - Familiarity with agent…
Remote work is listed. Eligible countries: United States. All listed country and residence restrictions must be satisfied. Also check micro1 country restrictions.
Experience
3 years minimum
Education
Not listed
Named languages
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Listed skills
data analysis, data review, attention to detail, handling ambiguity, error spotting
Role Title: Data Analyst (AI Evaluation) Role Type: Contractor Location: Remote, US-based. micro1 is engaging Data Analysts to contribute their knowledge and expertise to a customer’s data quality project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters. Scope of Work - Review datasets and detailed task outputs for accuracy, completeness, and adherence to guidelines. - Identify and flag inconsistencies, errors, and outputs that deviate from provided instructions. - Apply structured rubrics and evaluation criteria consistently across large data sets. - Exercise sound judgment and document rationale in ambiguous scenarios where guidelines are unclear. - Escalate patterns or recurring data issues for further analysis rather than addressing them individually. - Provide clear,…
Remote work is listed. Eligible countries: United States, United Kingdom, Canada. All listed country and residence restrictions must be satisfied. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
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microsoft powerpoint, slide reconstruction, presentation design, data visualization, visual storytelling, content editing, critical thinking, attenton to detail, written communication, statistical reasoning, data analysis, analytics reporting
Role Title: Data Science Specialist - Executive Presentation Review Role Type: Contractor Location: Remote (US, UK or CAN) micro1 is engaging Data Science Specialists to contribute to a customer's project focused on elevating the quality and impact of business presentations and analytical reporting. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters. Scope of Work - Reconstruct, redesign, and enhance data-driven presentations using Microsoft PowerPoint to ensure clarity and visual consistency. - Create compelling visualizations that transform complex data into insights, supporting effective visual storytelling across various audiences. - Edit content for accuracy, flow, and narrative impact while maintaining high standards of written communication. - Apply advanced data…
ethos · Data analysis & BI, Other data science roles, Other science roles
Pay
100 per hour (currency unconfirmed)
Country
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Confirm work and payout eligibility in the Ethos terms.
Experience
4 years minimum
Education
Not listed
Named languages
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Listed skills
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About the role We're working with a leading foundational AI lab to find experienced data scientists and ML engineers who can help train their latest language model on data science documentation tasks. We're looking for practitioners with 4+ years of experience to review and assess documents - judging whether the content and structure of each reflect the material they would genuinely encounter in day-to-day data science practice. Compensation: $100/hour Commitment: Flexible, up to 20 hours/week Location: Fully remote Start date: ASAP Qualifications: 4+ years of experience as a data scientist or ML engineer Current, hands-on familiarity with the documents your team writes and reviews Excellent written communication and attention to detail
Remote work is listed. Eligible countries: United States. All listed country and residence restrictions must be satisfied. Also check mercor country restrictions.
Experience
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**What this is** We're building a de-identified, real-world health dataset from Apple Health exports. Each contribution joins your on-device HealthKit data (activity, heart, sleep, and more) with clinical records (immunizations, labs, medications, vitals) from your linked health provider. **Who qualifies** We are exclusively looking for individuals who have visited at least one of the institutions listed below **and** have that institution's health records actively connected to Apple HealthKit. If your provider is not on this list, you do not qualify. **Qualifying institutions:** - Emory Healthcare - Scripps Health - Northwestern Medicine - Cedars-Sinai Health System - Penn Medicine - NYU Langone Health - Geisinger Health System - Dartmouth Health - Johns Hopkins Medicine - UCSF Health - Cleveland Clinic - Jefferson Health - VCU Health - University of Chicago Medicine - Doctors Center Hospital Orlando Health - Mass General Brigham - Norton Healthcare - Mount Sinai Health System -…
mercor · Data analysis & BI, Other data science roles
Pay
70–120 per hour (currency unconfirmed)
Country
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check mercor country restrictions.
Experience
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Education
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The research teams behind the best-known AI models come to Mercor for data judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against. This is a standing listing for analysts and data practitioners who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week. New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins. **What the work looks like** We match data practitioners in the network to projects like: - Writing an analysis problem from work you actually shipped, with the data, the question, and the constraint, plus the reference answer a model's attempt gets graded against - Grading model-written analysis and pipelines: whether the query answers the question that was asked, whether the join fans out, whether the metric means what the model says it…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check mercor country restrictions.
Experience
Minimum not listed
Education
Not listed
Named languages
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Listed skills
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The research teams behind the best-known AI models come to Mercor for machine learning judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against. This is a standing listing for machine learning practitioners who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week. New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins. **What the work looks like** We match machine learning practitioners in the network to projects like: - Writing a modeling problem from a system you actually shipped, with the data, the objective, and the constraint, plus the reference answer a model's attempt gets graded against - Grading model-written training and evaluation code: whether the loss matches the objective, whether the eval set leaks, whether the ablation…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
Not listed
Named languages
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Listed skills
big data, python, databases, data engineering
Job Title: Big Data Engineer Job Type: Contractor Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. Key Responsibilities: - Design, build, and maintain scalable big data pipelines and architectures to support robust data solutions. - Collaborate with cross-functional teams to understand and deliver on data requirements and business objectives. - Implement data integration, transformation, and processing solutions using Python and relevant big data technologies. - Develop, manage, and optimize distributed databases and storage systems for efficiency and reliability. - Monitor, troubleshoot, and enhance data systems to ensure high availability and performance. - Enforce data quality, security, and governance standards across all solutions. - Document solutions and communicate complex technical concepts effectively, both in…
Remote work is listed. Eligible countries: United States. All listed country and residence restrictions must be satisfied. Also check mercor country restrictions.
Experience
Minimum not listed
Education
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**Join a leading technology company's GenAI initiative and put your financial-modeling expertise at the core of how the next generation of AI models learns to work in Excel.** # 1\. Overview We're seeking **advanced Excel experts with deep, hands-on experience in finance** — professionals who live in spreadsheets, building financial models and analyses at a senior, professional level. Your expertise will directly elevate the quality of the training data behind the most advanced Large Language Models. This role is for finance professionals who apply advanced Excel — three-statement modeling, valuation, forecasting, and data analysis — in domains such as **private equity, investment banking, hedge funds, and equity research** (accounting / FP&A also welcome). This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading technology company as part of their extended workforce. # 2\. Key Responsibilities - Guide research teams to close knowledge…
Remote work is listed. Eligible countries: United States. All listed country and residence restrictions must be satisfied. Also check mercor country restrictions.
Experience
Minimum not listed
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**Join a leading technology company's GenAI initiative and put your Excel expertise at the core of how the next generation of AI models learns to work in spreadsheets.** # 1\. Overview We're seeking **advanced Excel experts with broad, cross-industry experience** — versatile professionals who have applied Excel at an expert level across a range of functions and industries, rather than in a single niche. Your expertise will directly elevate the quality of the training data behind the most advanced Large Language Models. This role is for generalists who bring genuine **breadth** — modeling, data analysis, dashboards, and automation applied across multiple domains and business functions. This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading technology company as part of their extended workforce. # 2\. Key Responsibilities - Guide research teams to close knowledge gaps and improve AI model performance on Excel-based tasks across a range of…
micro1 · Data analysis & BI, Other data science roles
Pay
31–60 per hour (currency unconfirmed)
Country
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
Not listed
Named languages
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Listed skills
pii, data privacy, document review, data analysis, quality assurance
Role Title: Data Analyst Role Type: Contractor Location: Remote micro1 is engaging Data Analysts to contribute to a high-impact customer project focused on business data. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. This opportunity is ideal for experienced professionals who can expertly review, analyze, and ensure the privacy of large-scale data sets, with a particular emphasis on business data and quality assurance. Scope of Work - Review and analyze extensive business data sets for accuracy, completeness, and relevance. - Conduct thorough document review with strict adherence to data privacy and PII protocols. - Identify, flag, and resolve data quality issues, inconsistencies, and anomalies. - Deliver detailed feedback and recommendations on data findings to inform AI training processes. - Contribute to the development and refinement of quality…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility.
Experience
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We are conducting a paid study on scenario generation and world-building for reinforcement learning platforms. We are looking for experienced machine learning and simulation engineers to construct structured environments and evaluate agent interactions.
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
Not listed
Named languages
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Listed skills
python, machine learning, mongodb
Role Title: Machine Learning Engineer Role Type: Contractor Location: Remote micro1 is engaging Machine Learning Engineers to contribute expertise to a dynamic customer project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. Scope of Work - Design, develop, and refine machine learning models using Python and relevant libraries to address project objectives. - Analyze large datasets and leverage MongoDB to manage and retrieve data efficiently for model training and validation. - Collaborate with cross-functional contributors to identify areas for model improvement and implement robust solutions. - Conduct thorough model evaluation, tuning hyperparameters, and benchmarking results to ensure optimal performance. - Document methodologies, experiments, and outcomes to ensure transparent and repeatable workflows. - Integrate data pipelines and…
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility. Also check micro1 country restrictions.
Experience
Minimum not listed
Education
Not listed
Named languages
Not listed
Listed skills
python, machine learning, statistics, data analysis, experimentation, pandas, data modeling
Role Title: Data Scientist Role Type: Contractor Location: Remote About the Role micro1 is partnering with a leading AI lab to hire data scientists and quantitative professionals from top companies. You'll bring rigor to how AI models handle statistics, machine learning, experimentation, and quantitative reasoning. Scope of Work - Evaluate AI model outputs on data science, statistics, ML, and quantitative problems - Create expert-level prompts, datasets, and reference solutions - Identify flawed methodology, statistical errors, and weak quantitative reasoning - Provide structured feedback that improves model capability Preferred Qualifications - At least one year of experience working at a top company (tech, finance, or research), with at least part of this experience within the past 7 years - Undergraduate degree from a top-ranked university - Based in an English-speaking country - Clear written communication of technical and statistical concepts
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility.
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<p>AfterQuery builds the expert evaluation data that frontier AI labs use to measure and improve their models. We're hiring BI and data visualization experts as contractors to author and grade the dashboard and reporting scenarios those evaluations run on.</p> <h3>What you'll actually do</h3> <ul><li>Author realistic BI scenarios, from data model through dashboard build and rollout</li><li>Write reference answers with the visualization and metric reasoning behind each decision</li><li>Grade model output for analytical accuracy and chart integrity</li><li>Flag dashboards that read polished but mislead the reader</li></ul> <h3>Who this is for</h3> <ul><li>Analysts with at least 2 years of professional BI or analytics experience</li><li>Practitioners with hands on depth in at least one tool such as Tableau, Power BI, or Looker</li><li>Builders with strong SQL for validating the data behind their dashboards</li><li>Clear writers who can document the reasoning behind an analytical…
afterquery · Data engineering, Other data science roles
Pay
60–100 per hour (currency unconfirmed)
Country
Remote work is listed. Country eligibility unconfirmed; remote does not mean worldwide eligibility.
Experience
Minimum not listed
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<p>AfterQuery builds the expert evaluation data that frontier AI labs use to measure and improve their models. We're hiring analytics engineers as contractors to author and grade the SQL and data modeling scenarios those evaluations run on.</p> <h3>What you'll actually do</h3> <ul><li>Author realistic analytics scenarios, from raw tables through tested data models</li><li>Write reference answers with the modeling and query reasoning behind each decision</li><li>Grade model output for SQL correctness and warehouse efficiency</li><li>Flag queries that read clean but return wrong or expensive results</li></ul> <h3>Who this is for</h3> <ul><li>Practitioners with at least 2 years of analytics engineering or SQL heavy analytics work</li><li>Experts in SQL across joins, window functions, CTEs, and query optimization</li><li>Builders with hands on experience in a modern warehouse such as BigQuery, Snowflake, or Redshift</li><li>Clear writers who can document the reasoning behind a data…