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Sigma AI

Linguistic Projects – Portuguese (Brazil), Spanish, English

Sigma AI

. Perform linguistic-project tasks including categorization, annotation, correction, transcription, evaluation, conversational interactions, voice recording, content creation, localization, and validation .

Posted 9/23/2026contractRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates fluency in Portuguese, Spanish, and English with strong writing and listening skills, alongside proficiency in linguistic project tasks such as annotation, transcription, and validation. Familiarity with computational linguistics and attention to detail are advantageous.

Highest-signal resume keywords
Fluency In PortugueseFluency In SpanishFluency In EnglishComputer LiteracyAttention To Detail

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Linguistic Project TasksAnnotationTranscriptionValidationContent CreationLocalizationConversational InteractionsVoice RecordingCorpus AnalysisLLM Training
Soft Skills
Strong Attention To Detail
Tools & Technologies
Windows 10MacOS 13 VenturaMicrophoneWebcamStable Internet ConnectionHeadphonesMobile Phone With Android OS
Industry Keywords
LinguisticsLanguage Data AnnotationComputational Linguistics

Tech Stack

Tools & technologies
AndroidiOSMacOS

About the role

Key responsibilities & impact
  • Perform linguistic-project tasks including categorization, annotation, correction, transcription, evaluation, conversational interactions, voice recording, content creation, localization, and validation
  • Validate audio, video, images, sentences, or words
  • Complete assigned tasks remotely through an online platform available 24/7
  • Provide documentation or information reasonably requested to verify identity and credentials
  • Complete mandatory tests to assess qualifications

Requirements

What you’ll need
  • Fluent in Portuguese (Brazil), able to listen and write correctly without spelling mistakes
  • Fluent in Spanish, able to listen and write correctly without spelling mistakes
  • Fluent in English, able to listen and write correctly without spelling mistakes
  • Computer literacy
  • Computer with minimum 4GB RAM
  • Microphone and webcam
  • Windows 10 or higher, or macOS 13 Ventura or higher
  • All operating-system updates installed and supported by the vendor
  • Stable internet connection
  • Headphones
  • Secure internet location protected by a strong password
  • Mobile phone with Android OS for audio-collection projects
  • Tablets and iOS devices are not supported
  • Preferred but not mandatory: experience with computational linguistics, corpus analysis, language data annotation, or LLM training
  • Preferred but not mandatory: strong attention to detail
  • Mandatory qualification tests after application submission

Benefits

Comp & perks
  • Remote work through an online platform available 24/7
  • Freelance commercial contract opportunity
  • Opportunity to contribute to global, innovative, and impactful AI projects