English Linguistic Projects

SIGMA; Greater London; On-site; GBP 30,000; Full time

Job summary

A leading global technology company is seeking a dedicated professional for a full-time role focusing on data collection and annotation for AI. This on-site position involves responsibilities such as categorization, annotation, and content creation, requiring native-level English proficiency and basic computer skills. Candidates with attention to detail or experience in data annotation may have an advantage. The role offers a gross annual salary of £30,000, with a temporary contract subject to extension.

Qualifications

• Native in English with excellent listening and writing abilities.
• Attention to detail is crucial.

Responsibilities

• Categorization of data.
• Annotation and correction tasks.
• Content creation and voice recording.

Skills

Proficient English

Basic computer skills

Job description

Overview

🌟 Join Sigma.AI – Shaping the Future of Artificial Intelligence 🌍

What is Sigma?

Sigma is a leading global technology company specialized in data collection and annotation for Artificial Intelligence. With over 30 years of experience, offices in Spain, the US, and the UK, and operations in more than 200 languages, we support top multinational clients in developing cutting-edge AI solutions.

Soft skills

We value proactive professionals who thrive on challenges, value collaboration, and approach every task with empathy, integrity, and a passion for learning.

What will you do?

As part of our linguistic projects, your responsibilities may include: Categorization, Annotation, Correction, Transcription, Evaluation, Conversational interactions, Voice recording, Content creation, Localization, Validation of audio, video, images, sentences, or words.

Requirements

We are looking for candidates with the following qualifications:

• Native in English – Able to listen and write correctly without spelling mistakes.
• Basic computer skills.

Preferred (but not mandatory)

• Experience in data annotation or content rating.
• Strong attention to detail.

What we offer

• Full-time job (40 hours per week) from Monday to Friday, fully on-site.
• 6-month temporary contract with possibility of extension.
• £30,000 annual gross salary.
• Anticipated start date: 1 March 2026.

How to Apply

If you’re interested, click "Apply for this job" and follow the instructions.

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Important Notes

Sigma.AI does not hire through third parties. No agents’ intermediaries or third parties are authorized to represent or benefit from or participate in any way in the relationship. The Candidate agrees to provide documentation or information reasonably requested by the Company to verify identity and credentials. Should the Candidate fail to provide enough evidence of identity to Sigma’s satisfaction, Sigma shall be entitled to withhold or terminate any offer.

The company may employ or rely on artificial intelligence systems in its selection processes. Such processing is carried out in an ethical, transparent, and legally compliant manner. The purpose is to evaluate the tests submitted in the course of the selection process (for instance the transcribed content provided by the candidate). The legal basis for processing your data is the pre-contractual relationship between the parties and/or the provision of requested services.

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Join us and be part of something global, innovative, and impactful.

Sigma.AI – Data done right.