German Linguistic Projects

Sigma; Deutschland; Remote; EUR 2,066,000 - 2,480,000; Part time

Job summary

Sigma .AI is seeking freelance data annotation professionals to join our global AI projects. You will perform tasks across categorization, annotation, correction, transcription, evaluation, and localization, contributing to high-quality AI data pipelines.

All work is remote and conducted through our online platform. Fluent German and English are required, with strong attention to detail and a proactive, collaborative attitude. This is a contract-based opportunity suitable for freelancers.

Qualifications

• German fluency with correct listening and writing, no spelling mistakes.
• English fluency with correct listening and writing, no spelling mistakes.
• Experience in data annotation or content rating preferred.

Responsibilities

• Categorization of data across languages and domains.
• Annotation and labeling of text, audio, video, or image data.
• Correction and transcription of content.
• Evaluation of data quality and consistency.
• Localization and content validation for AI models.
• Support remote collaboration on online platform.

Skills

German language proficiency

English language proficiency

Attention to detail

Job description

Join Sigma .AI – Shaping the Future of Artificial Intelligence

What is Sigma?

Sigma is a leading global technology company specializing 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 700 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?

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.

All tasks are remote , performed through an online platform available 24/7.

This opportunity is offered for freelancers under a commercial contract .

Requirements

We are looking for candidates with the following qualifications:

• Fluent in German – Able to listen and write correctly without spelling mistakes
• Fluent in English – Able to listen and write correctly without spelling mistakes

Preferred (but not mandatory):

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

Technical Requirements

To participate in our projects, you will need:

Computer:

• Minimum 4GB RAM
• Microphone and webcam

Operating system:

• Windows 10 or higher
• macOS 13 Ventura or higher
• All OS updates installed and supported by the vendor

Connectivity & Accessories:

• Stable internet connection
• Headphones
• Secure internet location, protected by a strong password

For audio-collection projects only:

• Mobile phone with Android OS

Tablets and iOS devices are not supported.

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.