Welo Data works with technology companies to provide high-quality, ethically sourced datasets that are relevant, diverse, and scalable, helping to strengthen and accelerate their AI models. As a Welocalize brand, Welo Data brings more than 25 years of experience partnering with some of the world’s most innovative companies, and connects a curated global community of 500,000+ AI training and domain experts. Our services include:

ANNOTATION & LABELLING: 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: from institutional languages to remote field audio collection.
RELEVANCE & INTENT: culturally nuanced and context-aware ranking, relevance, and evaluation to train models for search, ads, and LLM outputs.

Want to join the Welo Data team? We apply practical, hands-on AI expertise to our projects. We combine strong academic backgrounds with deep, working knowledge of state-of-the-art AI tools, frameworks, and best practices. Help us enhance our clients’ data at Welo Data.

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

In this role, you will review content and judge how well it follows the provided guidelines. You will work with different types of content and apply structured criteria to ensure consistency and quality across annotations.

Full task details will be shared during onboarding. This is an opportunity to contribute directly to content quality and user experience on a global scale.

Project Details
– Location: Remote – Serbia
– Target Language: Serbian (Serbia)
– Team: Welo Data – AI Services
– Engagement Type: Freelance – Remote
– Start Date: Immediate
– Duration: Minimum 2–3 weeks
– Availability: Part-time
– Pay Rate: Task-based (approximately $20.44 USD per hour)

Responsibilities
– Review content according to defined guidelines
– Evaluate and annotate different content types using structured criteria
– Make consistent judgments to ensure accuracy and annotation quality
– Follow project guidelines and adapt to updates as needed
– Complete tasks within agreed timelines on a flexible, part-time schedule
– Participate in onboarding and calibration sessions

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

Requirements
– Availability to commit for the project duration and expected workload
– Reliable internet access and a personal computer
– Ability to work independently as a freelance contractor in the target country

Why Join Welo Data?
– Limitless Flexibility: Project-based opportunities that fit your availability. Work fully remote with complete autonomy.
– Limitless Growth: Optional access to AI and Large Language Model workshops designed for professionals. No coding required—just your expertise.
– Limitless Support: Join a global contributor community with responsive guidance and support.
– Real Impact: Use your legal expertise to influence the AI systems shaping your industry’s future, while collaborating with data professionals and growing your skills.

How to Apply?
Apply now by answering a few quick questions to join our database and become part of our expanding community.

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 across 100+ countries.

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

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