Portuguese Linguistic Projects (Remote) -- Sigma AI

Help shape the future of ethical AI. Learn more about

Sigma.AI

and

Sigma Cognition . 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 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

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 How to Apply If you’re interested, click

“APPLY FOR THIS JOB”

and follow the instructions. After submitting your application, you will receive an email with the

required tests

to assess your qualifications. These tests are

mandatory

to move forward in the process. Check your

inbox

and

spam folder , just in case! 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.