Linguistic Projects Specialist, Portuguese

Sigma AI

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

Posted 9/24/2026contractRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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

Demonstrates fluency in Portuguese and English with strong listening and writing skills, alongside proficiency in linguistic project tasks such as categorization, annotation, and validation. Capable of utilizing necessary technology and maintaining a secure and stable work environment.

Highest-signal resume keywords

Fluency In PortugueseFluency In EnglishBasic Computer SkillsAudio-Collection ExperienceStable Internet Connection

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 TasksCategorizationAnnotationCorrectionTranscriptionEvaluationContent CreationLocalizationValidationVoice Recording

Tools & Technologies

Windows 10 Or HigherMacOS 13 Ventura Or HigherMicrophoneWebcamHeadphonesAndroid Mobile Phone

Industry Keywords

Audio ValidationVideo ValidationImage ValidationSentence ValidationWord ValidationSecure Internet LocationStrong Password Protection

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 required qualification tests after submitting an application
Provide documentation or information reasonably requested to verify identity and credentials

Requirements

What you’ll need

Fluent in Portuguese, able to listen and write correctly without spelling mistakes
Fluent in English, able to listen and write correctly without spelling mistakes
Basic computer skills
Minimum 4GB RAM computer
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
For audio-collection projects, an Android mobile phone
Tablets and iOS devices are not supported
Mandatory tests must be completed to proceed in the selection process

Benefits

Comp & perks

Remote work through an online platform available 24/7
Freelancer commercial contract
Opportunity to participate in global, innovative, and impactful AI projects
Ethical, transparent, and legally compliant selection processes
Fair and equitable treatment
Professional and independent work environment
Teamwork, continuous improvement, and fluid communication with clients