Czech Linguistic Projects (On-site London)

Sigma AI; Greater London; On-site; GBP 17,000 - 25,000; Full time

Job summary

Sigma AI in the United Kingdom is seeking detail-oriented data annotators who are native Czech speakers with fluent English to support multilingual AI projects.

You will categorize, annotate, correct, transcribe, evaluate and validate audio, video, images, and text content, with opportunities to grow within a global, privacy-conscious tech environment.

Qualifications

• Native or bilingual in Czech with accurate spelling.
• Fluent in English for office interaction.
• Strong attention to detail and accuracy.
• Basic computer skills for data handling.

Responsibilities

• Categorization of data samples for annotation.
• Annotation of text, audio, video or images.
• Correction and quality assurance of annotations.
• Transcription and evaluation of content.
• Validation of content accuracy and localization.

Skills

Czech language

English language

Attention to detail

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? If so, we’d love to hear from you!

What will you do?

Responsibilities include:

• Categorization
• Annotation
• Correction
• Transcription
• Evaluation
• Conversational interactions
• Voice recording
• Content creation
• Localization
• Validation of audio, video, images, sentences, or words

Requirements

Requirements include:

• Native or bilingual in Czech - 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.

Important Notes

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

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.