Data Annotation Specialist

We are hiring a Data Annotator to help prepare the training and evaluation data behind the AI and machine learning projects we deliver for clients in the US, UK and Europe. You'll label text, documents and images, and review AI-generated responses, following clear guidelines for each project.

Accuracy matters more than speed. Models are only as good as the data they learn from, so you'll check your own work, flag unclear cases and make sure everyone on the team labels the same way.

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Scope of Work:

• Label and tag text, documents, images and other data according to project guidelines.
• Review and rate AI-generated responses for accuracy, relevance and tone (LLM evaluation and RLHF tasks).
• Extract and structure information from documents such as invoices, forms and reports.
• Run quality checks on your own and teammates' work, and correct errors.
• Flag edge cases and unclear instructions, and suggest improvements to annotation guidelines.
• Meet agreed daily targets for volume and accuracy, and keep task trackers up to date.

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Must Haves:

• 1–2 years of experience in data annotation, data entry, content moderation or similar detail-focused work; fresh graduates are welcome.
• Bachelor's degree in any field.
• Strong reading comprehension and written English.
• High attention to detail and patience for repetitive, careful work.
• Comfortable with Google Sheets or Excel, and quick to pick up new web-based tools.
• Ability to follow detailed written guidelines.

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Good to Have:

• Experience with annotation tools such as Label Studio.
• Basic understanding of how AI and machine learning models use labelled data.
• Exposure to LLM evaluation, prompt writing or RLHF projects.

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Perks & Benefits:

• Gym, travel and food allowance
• Annual certification
• Paid time off and holidays
• Bi-annual performance reviews and bonuses

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How to Apply:

Interested candidates are invited to submit their resume and a cover letter detailing their relevant experience and why they are a good fit for this position. Fill out the form here!

Datum Labs is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.