Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Data Science Expert - AI Evaluation

$120 - $170 per hour

Mercor

Toronto, ON
  • Remote job

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

Position: Data Science Expert

Type: Contract

Compensation: $120–$170/hour

Location: Remote

Role Responsibilities

  • Design precise, task-specific grading criteria for real-world data science deliverables such as analyses, models, dashboards, and experiment readouts.
  • Score AI-generated and human work samples against criteria with detailed written justifications for every score.
  • Apply consistent, evidence-based judgment to ensure scores are reproducible and defensible.
  • Incorporate structured feedback from senior reviewers and iterate quickly on your work.
  • Work independently and asynchronously to meet deadlines while improving AI model performance .

Qualifications

Must-Have

  • 5+ years of professional data science experience in industry.
  • Background in business operations, product, or growth data science at top-tier technology companies.
  • Deep fluency in experiment design and A/B testing, metric definition, SQL/Python analysis, and communicating findings to executive stakeholders.
  • Exceptionally strong written communication.
  • Detail-oriented, consistent, and comfortable having your judgment reviewed and calibrated against peers.

Preferred

  • Prior experience with AI training , evaluation, or human-data projects.

Application Process (Takes 20–30 mins to complete)

  • Submit your resume or relevant technical background to get started.
  • Qualified applicants may be asked to complete a brief technical assessment or submit additional information.

Resources & Support

  • For details about the interview process and platform information, please check:
  • For any help or support, reach out to:

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the Data Science Expert - AI Evaluation in Toronto, ON vacancy
  • $100 - $150 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: Data Science Expert Type: Contract Compensation: $100–$150/hour... 
    Suggested
    Remote job
    Contract work
    Summer work
    Work at office

    Mercor

    Toronto, ON
    20 days ago
  •  ...Outlier is an AI training platform owned and operated by Scale AI. Outlier Experts work on a variety of projects, from generating training data to evaluating the performance of models. About the opportunity: We are seeking detail-oriented English speakers to review AI... 
    Suggested
    Hourly pay
    Contract work
    For contractors
    Freelance
    Internship
    Remote work
    Work from home
    Night shift

    Scale AI

    Toronto, ON
    5 days ago
  • $120 - $170 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: Data Science Expert Type: Contract Compensation: $120–$170/hour... 
    Suggested
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    more than 2 months ago
  • $120 - $180 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Dorsey . Position: Senior Data Scientist and Data Engineering Experts Type: Contract...  ...Design realistic, challenging data science and data engineering tasks, including... 
    Suggested
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    5 days ago
  • $100 - $150 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...Jack Dorsey . Position: Data Scientist Talent Network...  ...specific grading criteria for data science deliverables. This includes exploratory...  ..., and technical reports. Evaluate AI-generated or human-created... 
    Suggested
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    11 days ago
  • $80 - $120 per hour

     ...connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our...  ..., Larry Summers , and Jack Dorsey . Position: Data analysis / quantitative readouts Evaluator Type: Contract Compensation: $80–$120... 
    Remote job
    Contract work
    Summer work
    Work at office

    Mercor

    Toronto, ON
    a month ago
  • $108k - $135k per year

     ...where all team members belong and have the opportunity to thrive. Data and analytics are at the heart of Lyft's products and decision-...  ...solving, and skilled communication. You will report to a Data Science Manager. Responsibilities Own one or more domain datasets... 
    Hourly pay
    Work at office
    Flexible hours
    3 days per week

    Lyft

    Toronto, ON
    14 days ago
  • $108k - $135k per year

     ...connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Data Science is at the heart of Lyft’s products and decision-making. You will leverage data and rigorous, analytical thinking to shape our... 
    Hourly pay
    Work at office
    Flexible hours
    3 days per week

    Lyft

    Toronto, ON
    5 days ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Summers , and Jack Dorsey . Position: Software / AI / IT / data Evaluator Type: Contract Compensation: $80–$120/hour... 
    Remote job
    Contract work
    Summer work
    Work at office

    Mercor

    Toronto, ON
    more than 2 months ago
  • $100 - $150 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...Jack Dorsey . Position: Data Scientist Talent Network...  ...specific grading criteria for data science deliverables, including exploratory...  ...A/B test write-ups . Evaluate AI-generated or human-created... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    more than 2 months ago
  • $50 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...Position: French Linguistic Experts Type: Contract...  ...Role Responsibilities Evaluate the quality and accuracy of LLM...  ...linguistic annotation, or NLP data work in French. Strong understanding... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    5 days ago
  • $70 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include...  ..., and Jack Dorsey . Position: Mathematics PhD Coding Experts Type: Contract Compensation: $70/hour Location... 
    Remote job
    Contract work
    Summer work
    Immediate start

    Mercor

    Toronto, ON
    a month ago
  • $70 per hour

     ...connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: Data Science and Analytics Experts Type: Contract Compensation: $60–$70/... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    more than 2 months ago
  • $39 per hour

     ...About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    1 day ago
  • $57 per hour

     ...About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position... 
    Remote job
    Hourly pay
    Contract work
    For contractors
    Summer work

    Mercor

    Toronto, ON
    1 day ago
  • $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Healthcare Expert Type: Contract Compensation...  ...hours/week Role Responsibilities Evaluate and compare AI-generated responses on challenging... 
    Remote job
    Contract work
    Summer work
    Immediate start

    Mercor

    Toronto, ON
    6 days ago
  • $68.55 - $82.26 per hour

     ...RQ00745 -Requisition TitleData Science Developer Location: Toronto...  ...that turns public health data into timely analytics, surveillance...  ...prioritize use cases and integrate AI techniques (machine learning,...  .... The client will evaluate candidates based on both rate expectations... 

    Source Code

    Toronto, ON
    more than 2 months ago
  •  ...Opportunity ShyftLabs is a fast-growing data and technology company partnering with...  ...Senior Data Analyst, Advanced Analytics & Data Science to support Retail Media Network (RMN)...  ...modeling, and data science techniques to evaluate advertising performance, uncover actionable... 

    shyftlabs

    Toronto, ON
    2 days ago
  • $80 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San Francisco...  ..., and Jack Dorsey . Position: Data Engineer (Coding Agent Experience) Type...  ...frontier AI coding agents to complete and evaluate complex data engineering tasks. Review... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    more than 2 months ago
  • $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Healthcare Expert Type: Contract Compensation...  ...hours/week Role Responsibilities Evaluate and compare AI-generated responses to challenging... 
    Remote job
    Contract work
    Summer work
    Immediate start
    Flexible hours

    Mercor

    Toronto, ON
    19 days ago
  • $94 - $119 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...each question's difficulty: Medium, Hard, or Expert. Provide 1 correct answer and 9 plausible...  ...candidate in Medicine , Biomedical Sciences , Public Health , or a closely related... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    a month ago
  • $45 - $48 per hour

     ...members belong and have the opportunity to thrive. Lyft’s Data Science Team builds mathematical models underpinning the platform’s core...  ...and ML models to enable better decisions, and developing and evaluating algorithmic policies in our pricing, dispatch, and incentives... 
    Hourly pay
    Summer work
    Internship
    Summer internship
    Work at office
    3 days per week

    Lyft

    Toronto, ON
    14 days ago
  • $30 per hour

     ...out here: Loom Video Overview Join our expert annotation team to create training data for the world's most advanced AI models. No previous AI experience is necessary...  ...have 200+ roles open! What Will I Be Doing? Evaluating the quality of AI-generated code, including... 
    Hourly pay
    Weekly pay
    Long term contract
    Contract work
    Internship
    Remote work
    Flexible hours

    G2i Inc.

    Toronto, ON
    3 days ago
  • $200k per year

     ...DESCRIPTION The Department of Statistical Sciences in the Faculty of Arts and Science at the...  ...tenure stream position in the area of Data Science Computation or adjacent fields....  ...course materials, and ~ teaching evaluations ~ Applicants must also arrange to... 
    Permanent employment
    Full time

    University of Toronto

    Toronto, ON
    10 days ago
  • $50 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...English Language and Literature Expert Type: Contract...  ...Role Responsibilities Evaluate the quality and accuracy of LLM...  ..., language evaluation, or NLP data work in English. Strong understanding... 
    Remote job
    Contract work
    Summer work

    Mercor

    Toronto, ON
    a month ago
  • $120k - $240k per year

     ...Job Description: #Cosmos #Solana #DataScience About the Role: We're looking for a Data Science Associate to join our team, supporting Research, Trading, Risk, and Operations functions in the blockchain space. You'll work closely with a small team of blockchain engineers... 
    Full time
    Relocation

    Web3Leaders

    Toronto, ON
    26 days ago
  •  ...We Are: At Data Society Group, we provide the highest quality, leading-edge, industry-tailored data and AI training and solutions for Fortune 1,000 companies and federal, state...  ...sharing your real-world experience in data science and AI and based in Toronto, Canada? Join... 
    Contract work
    Part time
    For contractors
    Local area

    Data Society

    Toronto, ON
    4 days ago
  • $140k - $175k per year

     ...ready software for artificial intelligence (AI) model evaluation and benchmarking. You will build...  ...repeatable experiments, separate evaluation data from model development, and make results...  ...stakeholders. ~ Bachelor's degree in Computer Science, Engineering, or a related field, or... 
    Full time
    Internship
    Work at office
    Local area
    Flexible hours

    Thomson Reuters

    Toronto, ON
    1 day ago
  •  ...No. R2873670 Position Title: Data Scientist Location: Toronto...  ...Sanofi We’re an R&D-driven, AI-powered biopharma company...  ...Together, we chase the miracles of science to improve people’s lives. Main...  ...related to performance evaluation. Information collected and processed... 
    Work from home
    3 days per week
    Toronto, ON
    1 day ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ..., and Jack Dorsey . Position: Biology / environmental science Evaluator Type: Contract Compensation: $80–$120/hour... 
    Remote job
    Contract work
    Summer work
    Work at office

    Mercor

    Toronto, ON
    more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Data Science Expert - AI Evaluation. Be the first to apply!