Brazilian Portuguese AI Data Labeling Analyst

Welocalize, Inc.; New York (NY); On-site; USD 32,000 - 45,000; Full time

Benefits offered by this job

Paid Vacation: 6 days

Paid Holidays: 2 days

Paid Sick Leave

Medical, Dental, Vision Insurance

Health Savings Account

401(k) Retirement Plan

Employee Assistance Program

Voluntary benefits (life, accident, CI

Free meals onsite

Commuter benefits

Job summary

Welocalize, Inc. is seeking Data Labeling Analysts for the Welo Data program to support speech and voice AI systems with Portuguese (Brazil) data. This 100% onsite, full-time role requires US work authorization and offers a pay rate of $28/hour.

Eligible locations include NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Los Angeles, Washington DC, and Boston. You will evaluate model outputs, audit data, apply guidelines consistently, and document findings with strong

Qualifications

• Native-level fluency in Brazilian Portuguese.
• Strong written communication and language fundamentals.
• 1 year of work experience in data labeling, annotation, or related field; or a Bachelor's degree.
• Ability to follow detailed instructions and apply guidelines.
• High attention to detail and accuracy in repetitive tasks.
• Comfort working in structured, process-driven environments.
• Ability to manage time effectively and maintain steady output.
• Willingness to ask questions and escalate when needed.
• Basic familiarity with AI, speech technology, or language data is a plus.

Responsibilities

• Evaluate AI model outputs and provide structured, high-quality feedback.
• Perform audit-based reviews of data and model behavior; identify patterns, edge cases, and failure modes.
• Apply guidelines thoughtfully and flag when they don’t reflect real-world scenarios.
• Contribute to improving evaluation frameworks, not just executing them.
• Identify trends in model performance and communicate insights clearly.
• Participate in team calibrations and stakeholder syncs.
• Partner with leads and cross-functional teams to refine quality standards.
• Document findings in a clear, concise, and actionable way.

Skills

Portuguese (Brazil)

Written communication

Attention to detail

Time management

Process-driven

Ask questions when needed

AI basics familiarity

Education

Bachelor’s degree or equivalent

Job description

Welocalize, Inc. is seeking Data Labeling Analysts for the Welo Data program to support speech and voice AI systems with Portuguese (Brazil) data. This 100% onsite, full-time role requires US work authorization and offers a pay rate of $28/hour.

Eligible locations include NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Los Angeles, Washington DC, and Boston. You will evaluate model outputs, audit data, apply guidelines consistently, and document findings with strong