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

First Roles; Seattle (WA); On-site; USD 107,000 - 130,000; Full time

Benefits offered by this job

Paid Vacation: 6 days

Paid Holidays: 2 days

Medical, Dental, Vision Insurance

401(k) Retirement Plan

Employee Assistance Program

Free Gourmet Food & Snacks

Job summary

Welo Data is seeking a Data Quality Analyst with native German language skills for an onsite role in Seattle, WA. The position is full-time, 40 hours per week, and requires work authorization in the United States.

The role focuses on auditing outputs, providing actionable feedback, and guiding DLAs through evolving guidelines. Ideal candidates have 2–4 years in data annotation or QA and hold a university degree, with English at least at B2 level.

Qualifications

• Native-level German language proficiency.
• Bachelor's degree or higher.
• 2-4 years of experience in data annotation, content quality, QA, or related fields.

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.

Skills

German language

English - B2

Education

University degree

Job description

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

Company: Welo Data

Location: Seattle, Washington

Salary: $118,404 per year - estimated

Project Details

• Job Title : Data Quality Analyst
• Hiring in : Onsite (Bay Area, Seattle, NYC, or client-dependent)
• Hours : Full-time, 40 hours per week
• Employment Type: W2 Full-Time Employee
• Work Authorization : Must be authorized to work in the U.S. (no visa sponsorship)
• Pay Rate: $38/hour

Important: This is a 100% onsite position - remote work is not available for this role.

To be considered, candidates must be located in or able to commute to one of the following cities: NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Austin, Los Angeles, Washington DC, Chicago, Boston, Austin.

What You'll Do

• 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

What We're Looking For

• Native-level German 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

Benefits

• Paid Vacation: 6 days
• Paid Company Holidays: 2 days (Memorial Day and Labor Day)
• Paid Sick Leave: accrued per applicable state law and company policy
• Medical, Dental, and Vision Insurance (eligibility applies)
• Health Savings Account (HSA)
• 401(k) Retirement Plan
• Employee Assistance Program
• Additional voluntary benefits (life, accident, critical illness, etc.)
• Free Gourmet Food: Free breakfast, lunch, and dinner are provided, featuring a wide variety of cuisines in multiple cafes.
• Micro-kitchens & Snacks: Offices are stocked with free snacks and beverages, including premium coffee and La Croix.
• Unique Campus Features: Some locations include roof-top nature parks
• Commuter Benefits: Free transport, shuttles, and sometimes bike-to-work perks.

To know more details. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. In addition, we employ anti-fraud checks to ensure all candidates meet the requirements of the program.