About the Role

We are looking for detail-oriented Quality Control (QC)Specialistto support an AI data annotation project. In this role, you will review the worksubmittedby Trainers — pre-seeded questions paired with images and their corresponding "golden" answers — to confirm accuracy, consistency, and adherence to project guidelines.

This is a task-based, remote-friendly opportunity ideal for individuals who are highly meticulous, observant, and skilled at spotting errors or inconsistencies that others may miss.

What You'll Do

Review completed taskssubmittedby Trainers, including the original question, the image, and the golden answer provided

Independently verify whether the golden answer is correct based on the image

Identifyand flag incorrect, incomplete, ambiguous, or inconsistentanswers

Provide clear, constructive feedback or corrections to helpmaintainoverall data quality

Track recurring error patterns and report them to the project team

Ensure Trainer output meets the project's quality bar before final sign-off

Escalate unclear cases (e.g., illegible images, ambiguous questions) to the project team for resolution

What We're Looking For

Native/Strong proficiency at Spanish

Bachelor's degreerequired

Excellent attention to detail and a strong quality mindset

Good visual observation and reading comprehension skills

Ability to apply guidelines/rubrics consistently and objectively

Strong written English communication skills, especially for giving feedback

Priorexperience in quality assurance, quality control,



editing, proofreading, data review, dataannotationor data labeling is a plus

Reliable access to a computer and internet connection

Work Format & Compensation

Work Type:freelance, remote

Hours/Schedule: 20hours per week

Compensation: $39.6/hr

Duration: Long-term

Why Join Welo Data?

Limitless Flexibility

Project-based opportunities that fit your availability. Choose when and how much you want to contribute—fully remote, with complete autonomy.

Limitless Growth

Optional access to AI and Large Language Model workshops designed specifically for professionals like you. No coding required—just your expertise.

Limitless Support

Be part of a global contributor community with responsive guidance and support.

Real Impact

Apply your expertise in the Legal field to influence the AI systems shaping the future of your industry—while collaborating with data professionals and expanding your skills.

About Welo Data

Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. We’re building smarter, more human AI with a diverse community in 100+ countries.

At Welo Data, Limitless AI. Limitless You. isn’t just a slogan—it’s our promise. We build smarter AI through the power of human contribution, offering limitless opportunities for our integral community to grow, contribute, and work on their terms.

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📌 Project Epsilon - Spanish (Spain) Quality Control Specialist (Sevilla)
🏢 Welo Global
📍 Sevilla