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Welo Data
Welo Data

Welo Data is a provider of training and evaluation services for artificial intelligence models.

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    Infographic showing various Financial Services job openings at Welo Data in the United States as of July 2026, with employment types broken down into 96% Full Time, and 4% Part Time. Highlights an 50% Physical, and 50% Remote job distribution.
    Project Perseus | Data Labeling Associate - German Speakers (Human-in-the-Loop AI)

    Project Perseus | Data Labeling Associate - German Speakers (Human-in-the-Loop AI)

    Welo Data

    San Francisco, CA • On-site

    Full-time

    Posted 4 days ago

    Job description

    Job Summary:
    Welo Data is a company specializing in multilingual content transformation services, and they are seeking a Data Labeling Associate to enhance their AI systems. The role involves evaluating AI model outputs, providing structured feedback, and contributing to the improvement of evaluation frameworks while ensuring high data quality.
    Responsibilities:
    • Evaluate AI model outputs and provide structured, high-quality feedback
    • Perform audit-based reviews of data and model behavior — identifying patterns, edge cases, and failure modes
    • Apply guidelines thoughtfully — and flag when they don’t reflect real-world scenarios
    • Contribute to improving evaluation frameworks, not just executing them
    • Identify trends in model performance and communicate insights clearly
    • Participate in team discussions, calibrations, and stakeholder syncs
    • Partner with leads and cross-functional teams to refine quality standards
    • Document findings in a clear, concise, and actionable way
    Qualifications:
    Required:
    • Native-level language proficiency
    • University degree (Bachelor’s or higher)
    • B2 or superior level of English
    • 1–2 years of professional writing experience with strong, structured writing skills
    • Ability to apply complex writing rules and guidelines consistently
    • Strong understanding of safety considerations in GenAI data delivery, with 2+ years of relevant experience
    • Strong critical thinking and attention to detail
    • Ability to make sound judgment calls in ambiguous situations
    • Naturally curious about AI, technology, and how systems behave
    • Comfortable speaking up, asking questions, and contributing ideas
    • Strong written and verbal communication skills
    • Ability to stay consistent while working with evolving guidelines
    Preferred:
    • Experience in data quality, QA, annotation, or analysis is helpful — but not required
    Company:
    With 27+ years of experience, Welo Data is the human-centered infrastructure for globally effective AI. Founded in , the company is headquartered in , , with a team of 1001-5000 employees. The company is currently Late Stage.

    Working at Welo Data

    What to expect from working at Welo Data

    From Welo Data

    About Welo Data, in their own words

    From Welo Data

    Welo Data is a global AI data services company powering the next generation of AI. We build, annotate, and validate the training datasets that make AI models accurate, safe, and ready for the real world — across languages, cultures, and domains.

    Our team of experts spans the globe, combining deep technical knowledge with a human-centered approach. If you want your work to shape how AI understands the world, you'll find your place here.

    Diversity and inclusion statement

    From Welo Data

    Our Strength is derived from Winning Together. Welo Data is unequivocally committed to developing and fostering a workplace and organizational culture that values the diversity of thought and perspective delivered by a diverse global workforce operating within an inclusive organization.

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