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Welo Data
Welo Data

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

68 Welo Data Project Analyst Jobs Hiring Near You

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Infographic showing various Project Analyst 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 Quality Analyst - German Speakers (Human-in-the-Loop AI)

Project Perseus | Data Quality Analyst - German Speakers (Human-in-the-Loop AI)

Welo Data

Sunnyvale, CA • On-site

Full-time

Posted 24 days ago

Job description

Job Summary:
Welo Data is looking for experienced, detail-oriented professionals to join their team as Data Quality Analysts. This role involves supporting quality and execution across Data Labeling Associates teams, ensuring work meets defined standards and providing feedback to improve accuracy and consistency.
Responsibilities:
• Support quality and execution across DLA teams, ensuring work meets defined standards at scale
• Audit DLA outputs and provide structured, actionable feedback to improve accuracy and consistency
• Act as the first line of support for DLAs — answering questions and helping interpret guidelines
• Help DLAs navigate ambiguity and apply evolving instructions effectively
• Support onboarding and training of new DLAs through hands-on guidance and coaching
• Monitor workflows, queues, and blockers — escalating risks and gaps to Team Leads
• Identify patterns, recurring issues, and edge cases in both human and model outputs
• Participate in calibrations, team discussions, and stakeholder syncs
• Contribute to improving guidelines, processes, and overall team performance
• Document findings and feedback in a clear, concise, and actionable way
Qualifications:
Required:
• Native-level language proficiency and a university degree (Bachelor’s or higher)
• B2 or superior level of English
• 2–4 years of experience in data annotation, content quality, QA, or related fields
• Strong ability to interpret and apply complex guidelines with consistency
• Excellent attention to detail with a high bar for quality
• Ability to stay consistent while working with evolving guidelines and priorities
• Experience in AI/ML data workflows or human-in-the-loop evaluation environments
• Prior experience auditing or reviewing the work of others
• Familiarity with safety, compliance, or policy-driven content evaluation
• Must be authorized to work in the U.S. (no visa sponsorship)
• This is a 100% onsite position — remote work is not available for this role
• Candidates must be located in or able to commute to one of the specified cities
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

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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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