Welo Data partners with technology companies to provide high-quality, ethically sourced datasets that are relevant, diverse, and scalable—helping strengthen their AI models. As a Welocalize brand, Welo Data leverages more than 25 years of experience supporting the world’s most innovative organizations and brings together a curated global network of 500,000+ AI training and subject-matter experts to deliver services across:

ANNOTATION & LABELING: Transcription, summarization, and image/video classification and labeling.
ENHANCING LLMs: Prompt engineering, SFT, RLHF, red teaming, adversarial model training, and model output ranking.
DATA COLLECTION & GENERATION: Everything from institutional languages to gathering audio from remote locations.
RELEVANCE & INTENT: Culturally informed ranking, relevance, and evaluation to train models for search, ads, and LLM outputs.

Interested in joining the Welo Data team? We bring practical, hands-on AI expertise to every project. You’ll work with both solid academic foundations and deep, real-world knowledge of today’s leading AI tools, frameworks, and best practices. Help us improve the data we deliver to our clients at Welo Data.

**Project Overview**
We are looking for detail-oriented freelance AI Content Evaluators to support a high-impact data annotation project.

In this role, you will review content and determine how well it follows the provided guidelines. You will evaluate different types of content and apply structured criteria to ensure consistent, high-quality annotations.

Full details and the task scope will be shared during onboarding. This is a chance to directly contribute to content quality and user experience at a global scale.

**Project Details**
– Location: Remote – Greece
– Target Language: Greek (Greece)
– Team: Welo Data – AI Services
– Engagement Type: Freelance – Remote
– Start Date: Immediate
– Duration: Minimum 2–3 weeks
– Availability: Part-time
– Pay Rate: Task-based (about $15 USD per hour)

**Responsibilities**
– Review content using the defined guidelines
– Evaluate and annotate different content types with structured criteria
– Provide consistent, accurate assessments to maintain annotation quality
– Follow project instructions and update decisions as guidance changes
– Complete assigned tasks within agreed timelines on a flexible part-time schedule
– Attend onboarding and calibration sessions

**Qualifications**
– Native-level proficiency in the target language (C2 or equivalent), with strong grammar skills, fluency, and understanding of regional usage
– Experience in localization QA, translation/revision, linguistic work, or AI/ML data annotation is preferred
– Strong analytical skills and the ability to apply structured guidelines consistently
– English proficiency to understand instructions and provide basic reasoning when needed
– Excellent attention to detail and consistency across tasks
– Ability to work with changing guidelines in a fast-paced environment
– Familiarity with digital content platforms (music, podcasts, media) is a plus

**Requirements**
– Availability to complete the full project duration and expected workload
– Reliable internet and a personal computer
– Ability to work independently as a freelance contractor within the target country

**Why Join Welo Data?**
– **Unlimited Flexibility:** Project-based work that fits your schedule. Decide when and how much you want to contribute—fully remote, with full autonomy.
– **Unlimited Growth:** Optional access to AI and Large Language Model workshops for professionals. No coding required—your expertise is what matters.
– **Unlimited Support:** Join a global contributor community with responsive guidance and support.
– **Real Impact:** Apply your legal expertise to help shape the AI systems influencing your industry’s future, while collaborating with data professionals and building your skills.

**How to Apply**
Submit your application by answering a few quick questions to join our database and become part of our growing community.

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

At Welo Data, “Limitless AI. Limitless You.” is more than a slogan—it’s our promise. We create smarter AI through the power of human contribution, offering limitless opportunities for our global community to grow, contribute, and work on their own terms.

We may use AI tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or evaluating responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are made by people. If you’d like more information about how your data is processed, contact us.