
Defined.ai is the leading provider of ethical AI data, offering the world’s biggest ethical AI data marketplace alongside subscriptions for flexible data access and custom services. With deep expertise in artificial intelligence and machine learning, Defined.ai delivers high-quality, ethically sourced training data, enabling companies to accelerate their AI solutions with data that is secure, bias-free, and compliant with ethical and legal standards. Founded by Daniela Braga, PhD, in 2015, Defined.ai has earned recognition in top-tier outlets, including Forbes, Fortune, Gartner, CB Insights, and Inc., and has received numerous awards, with appearances on prestigious lists like Forbes AI 50, Deloitte Fast 100, and Inc. 500. The company has raised over $80 million in funding and is headquartered in Seattle, WA, USA, with additional offices in Lisbon, Portugal.

Defined.ai is the leading provider of ethical AI data, offering the world’s biggest ethical AI data marketplace alongside subscriptions for flexible data access and custom services. With deep expertise in artificial intelligence and machine learning, Defined.ai delivers high-quality, ethically sourced training data, enabling companies to accelerate their AI solutions with data that is secure, bias-free, and compliant with ethical and legal standards. Founded by Daniela Braga, PhD, in 2015, Defined.ai has earned recognition in top-tier outlets, including Forbes, Fortune, Gartner, CB Insights, and Inc., and has received numerous awards, with appearances on prestigious lists like Forbes AI 50, Deloitte Fast 100, and Inc. 500. The company has raised over $80 million in funding and is headquartered in Seattle, WA, USA, with additional offices in Lisbon, Portugal.
Core offering: Ethically sourced AI training data marketplace and custom data services
Founded: 2015
Founder & CEO: Dr. Daniela Braga
Headquarters: Seattle, WA, USA
Reported total funding: ~$80M (company reports $85M+ in some materials)
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AI training data quality, ethical sourcing, and dataset provisioning for machine learning/LLMs.
2015
IT Services and IT Consulting
$50.5M
Series B included participation from Semapa Next and Hermes GPE alongside existing investors.
$11.8M
$1.1M
Seed investors included Sony and Amazon Alexa Fund among others.
“Includes corporate strategic backers (Amazon Alexa Fund, Sony Innovation Fund, Mastercard) and growth/VC firms (Evolution Equity Partners, Kibo Ventures, Portugal Ventures, Semapa Next, Hermes GPE)”
Location: Remote (within U.S)
Availability: Full-time (40 hours/week)
Project Duration: 12 months from start date
About The Role Support the creation, administration, and management of UX research studies with a strong focus on Qualtrics software. This role is centered on research design and execution rather than user interface or visual design. The ideal candidate should have experience building structured studies, managing workflows, and analyzing survey data to generate actionable insights.
Key Responsibilities
Requirements