Remote Brazilian Portuguese QA & Alignment Specialist

Invisible Technologies Inc.; United States; On-site; USD 8,300 - 90,000; Full time

Job summary

Invisible Technologies is seeking independent contractors to provide native-level Brazilian Portuguese language vetting and QA for a specialized AI data project. Contractors will annotate, review, and test AI outputs for grammatical accuracy, naturalness, and cultural context, working remotely.

The engagement is freelance with pay ranging from $6 to $65 per hour based on experience and location. Contractors supply their own equipment and internet; benefits such as health insurance and PTO do not

Qualifications

• Demonstrable work or educational experience in linguistics, education, or other fields requiring high attention to linguistic detail.
• Experience in human data evaluation or annotation.
• Verified Brazilian Portuguese language proficiency at C1 or C2.
• Ability to transform feedback and quality trends into structured educational resources.
• Meticulous approach to language and cultural nuance.

Responsibilities

• Data Annotation & Review: Review, annotate, and test AI outputs for grammatical accuracy, naturalness, and cultural context.
• Quality Assurance & Vetting: Act as a primary quality check during production to identify and correct subtle cultural errors or awkward phrasing in Brazilian Portuguese.
• Resource Generation: Analyze task quality trends and autonomously develop educational resources and feedback documentation.
• Production & Vetting Support: Provide native-level language vetting during project scaling and offer linguistic consultation.

Skills

Brazilian Portuguese proficiency (C1/C

Linguistic detail & nuance

Data annotation / QA experience

Educational resource development

Remote collaboration

Education

Linguistics degree or equivalent

Job description

Invisible Technologies is seeking independent contractors to provide native-level Brazilian Portuguese language vetting and QA for a specialized AI data project. Contractors will annotate, review, and test AI outputs for grammatical accuracy, naturalness, and cultural context, working remotely.

The engagement is freelance with pay ranging from $6 to $65 per hour based on experience and location. Contractors supply their own equipment and internet; benefits such as health insurance and PTO do not