Korean Linguistic Projects (On-site London)

Sigma; Greater London; Hybrid; GBP 18,000 - 30,000; Full time

Job summary

Sigma.AI in London is seeking motivated linguists to join its data annotation team. You will work on multilingual projects, helping to categorize, transcribe, and evaluate data to improve AI systems. Ideal candidates are native or bilingual Korean, fluent in English, and comfortable with basic computer tasks.

Prior data annotation experience is a plus, but attention to detail and reliability are essential. This role offers a globally connected environment and opportunities to contribute to

Qualifications

• Native or bilingual in Korean with accurate writing and spelling
• Fluent in English with ability to interact effectively in an office setting
• Basic computer skills required (emails, basic software)

Responsibilities

• Categorization, annotation, and correction within linguistic projects.
• Transcription and evaluation of multilingual data.
• Localization and validation of audio, video, images, and text.

Skills

Korean language

English fluency

Basic computer skills

Job description

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:

Are you a proactive professional who thrives on challenges, values collaboration, and approaches 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 or bilingual in Korean – Able to listen and write correctly without spelling mistakes

• Fluent in English– Able to interact efficiently in the office environment.

• Basic computer skills.

Preferred (but not mandatory):

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

Need Help?

We’re here for any questions or concerns.

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

Sigma.AI – Data done right.