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Expert Rater (Spanish) | Remote (Spain) | $19.55/hour

Welo Data

Language Data Freelancer · Full-time
Spain $19.6 – $19.6/hr July 22, 2026

Job description

We're Hiring: Expert Rater (Spanish) | Remote (Spain) | $19.55/hour

🚀 Join Welo Data and help improve the quality of AI-powered advertising systems!

We're looking for experienced Spanish-speaking Expert Raters based in Spain to support AI data quality by coaching raters, reviewing annotations, and ensuring high-quality evaluation standards.

📍 Position Details

  • Job Title: Expert Rater
  • Language: Spanish
  • Location: Remote (Spain)
  • Employment Type: Freelance
  • Hourly Rate: $19.55/hour
  • Schedule: 30 hours/week (potential to increase to 40 hours/week)
  • Project Duration: 1 Month
  • Start Date: 27th July
  • Potential: Opportunity for full-time employment based on performance and project needs

🎯 What You'll Do

  • Support and mentor AI Raters to improve rating quality and consistency.
  • Review annotations and create high-quality gold-standard datasets.
  • Conduct Tier 2 quality reviews and identify improvement opportunities.
  • Analyze data trends and KPIs to support data-driven decisions.
  • Collaborate with clients and internal teams to meet quality expectations.
  • Prepare clear client communications, feedback, and documentation.
  • Participate in AI research and quality improvement initiatives.

✅ Requirements

  • Native or fluent Spanish.
  • English proficiency (B2 or higher).
  • 1+ year of rating, annotation, or AI evaluation experience.
  • Experience with data labeling, content evaluation, or quality assurance.
  • Intermediate knowledge of Google Workspace.
  • Strong analytical, communication, research, and coaching skills.
  • Understanding of Spanish and U.S. cultural and societal norms is an advantage.

⭐ Bonus Qualifications

  • Background in Social Sciences, Linguistics, Psychology, Education, or Quality Assurance.
  • Experience mentoring teams or conducting quality reviews.

💰 What We Offer

✔ $19.55/hour
✔ Fully Remote (Work from Anywhere in Spain)
✔ Flexible Freelance Opportunity
✔ Potential Full-Time Opportunity
✔ Work on cutting-edge AI projects with a global team

Apply now

You will be redirected to the company's website to complete your application.

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Frequently asked questions

Is Welo Data legitimate?
Yes, Welo Data is a legitimate company listed on RemoWork. We verify all companies on our platform. However, we always recommend doing your own research before sharing personal information or starting work. Check reviews from other users and visit the company's official website for the most up-to-date information.
How do I get started with Welo Data?
To get started, visit Welo Data's official website and look for their careers or sign-up page. Create an account, complete your profile with relevant skills and experience, and apply for available positions or projects. Some companies may require you to pass a qualification test or assessment before you can start working.
Does Welo Data offer remote work?
Yes, Welo Data offers remote work opportunities. Most tasks and positions can be completed from anywhere with a reliable internet connection and a computer or smartphone. Specific location requirements may vary by project or role, so check individual listings for details.
How does Welo Data pay its workers?
Payment methods and schedules vary. Common payment options include PayPal, bank transfers, Payoneer, and other digital payment platforms. Visit Welo Data's official website or check their payment/FAQ section for specific details about payment methods, minimum thresholds, and payout schedules.
What skills do I need to work with Welo Data?
Required skills vary by role and project. Generally, you'll need a reliable internet connection, basic computer literacy, strong attention to detail, and good communication skills. Some positions may require specialized expertise, language proficiency, or technical qualifications. Check individual job listings for specific requirements.
What is the relationship between Welo Data and Welocalize?
Welo Data is a brand launched by Welocalize in 2024, specifically focused on AI data services. Welocalize has over 25 years of experience in translation and content solutions. Welo Data leverages this heritage while focusing on AI training data, annotation, RLHF, and LLM fine-tuning services with a global network of 500,000+ experts.
What types of AI tasks does Welo Data offer?
Welo Data offers a comprehensive range of AI tasks: text/image/video/audio annotation and labeling, transcription, summarization, prompt engineering, Supervised Fine-Tuning (SFT), RLHF, red teaming, adversarial model training, model output ranking, data collection, and culturally nuanced evaluation for search, ads, and LLM outputs across 100+ languages.
How do I apply to work with Welo Data?
Apply through the Welo Data website (welodata.ai). You'll go through a screening process including a language/cultural assessment and a task-related qualification exam. Once approved, you access projects through the "Welo Works" platform. Optional study materials and training guides are provided to help you prepare for assessments.
Apply now

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