
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)
| Company |
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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)”
Description Defined.ai is a leading provider of high-quality, ethically sourced data for Artificial Intelligence (AI) and Machine Learning (ML) model training. We host the world's largest AI marketplace and offer end-to-end services to help companies accelerate their AI solutions. Backed by significant funding and recognized globally for our commitment to ethical AI, we operate in a fast-paced, innovative environment with offices in Seattle and Lisbon.
Who are we looking for? We're looking for a Senior Product Manager for AI Data - you will own the end-to-end lifecycle of the data that powers our Artificial Intelligence models. You aren’t just managing a feature; you are managing the foundational fuel for our AI. You will lead the strategy for large-scale data collection, high-fidelity transcription (audio/speech-to-text), and complex semantic annotation.
Key Responsibilities
Required Skills & Experience
Benefits You spend a lot of your time at work, so it should be challenging, fun and interesting. At Defined.ai it will be all of those things and more. Here’s what we offer: