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Sigma AI

Czech & English Linguistic Projects (Remote)

Posted 2026-11-04
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Work Type
Remote
Location
Czechia, Slovakia, Croatia, Hungary
Compensation
Not specified

About this opportunity

Overview

Sigma AI is looking for freelancers to join remote Czech and English linguistic projects. The work is completed through an online platform that is available 24/7, and the role is offered under a commercial contract.

Candidates should be comfortable working on language-focused tasks that support AI data projects. After applying, qualified candidates will receive mandatory tests by email as part of the selection process.

What You’ll Do

  • Carry out language data tasks such as categorization, annotation, correction, and transcription.
  • Review and evaluate audio, video, images, sentences, and words.
  • Participate in conversational interactions and voice recording tasks when required.
  • Create and localize content as part of linguistic project work.
  • Validate language data and related media for quality and accuracy.

Requirements

  • Fluent in Czech, with the ability to listen and write accurately without spelling mistakes.
  • Fluent in English, with the ability to listen and write accurately without spelling mistakes.
  • Computer literacy.
  • Preferred, but not mandatory: experience in computational linguistics, corpus analysis, language data annotation, or LLM training.
  • Strong attention to detail.

Technical Requirements

  • Computer with at least 4 GB RAM.
  • Microphone and webcam.
  • Windows 10 or later, or macOS 13 Ventura or later.
  • All operating system updates installed and supported by the vendor.
  • Stable internet connection.
  • Headphones.
  • Secure internet location protected by a strong password.
  • For audio-collection projects only: Android mobile phone.
  • Tablets and iOS devices are not supported.

Application Process

  • Click the job application button and follow the instructions.
  • After submitting the application, check your email for the required assessment tests.
  • The tests are mandatory to continue in the process.

Additional Notes

  • This opportunity is for freelancers.
  • The role is remote.
  • Locations listed in the source include Czech Republic, Slovakia, Croatia, and Hungary.
  • Sigma AI states that it does not hire through third parties.

Skills & expertise

Czech language proficiency English language proficiency Linguistic annotation Transcription Localization Content evaluation Audio/video data validation Computational linguistics

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