Onsite Portuguese Speech Data Labeling Analyst

Welo Global; Burlingame (CA); On-site; USD 36,000 - 39,000; Full time

Benefits offered by this job

Paid Vacation: 6 days

Paid Holidays: 2 days

Sick Leave: accrual per state law

Medical, Dental, Vision Insurance

Health Savings Account

401(k) Retirement Plan

Employee Assistance Program

Voluntary benefits (life, accident, N)

Job summary

Welocalize is seeking detail-oriented Data Labeling Analysts to join our onsite team supporting speech and language AI systems. This production role focuses on creating high-quality labeled data from audio and language content, following strict guidelines and ensuring data integrity at scale.

Candidates must be located near Bay Area locations or able to commute to onsite offices; strong attention to detail and consistency are essential.

Qualifications

• Native-level fluency in Portuguese (Brazil).
• Strong written communication skills and language fundamentals.
• 1 year of work experience in data labeling, annotation, or content-focused work; or a Bachelor’s degree or equivalent.
• Ability to follow detailed instructions and apply guidelines consistently.
• High attention to detail and ability to maintain 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 elevate when needed.
• Basic familiarity with AI, speech technology, or language data is a plus.

Responsibilities

• Execute high-volume data labeling and annotation tasks across speech and voice datasets.
• Follow detailed guidelines to ensure consistency, accuracy, and data integrity at scale.
• Work with audio and language data, including transcription, categorization, and tagging.
• Maintain strong throughput while meeting quality expectations.
• Escalate unclear or ambiguous cases appropriately.
• Adapt to evolving guidelines and workflows as systems and requirements change.
• Support baseline data production needs for AI training pipelines.
• Contribute to team calibrations and quality alignment sessions.

Skills

Portuguese (Brazil)

Strong written communication

Attention to detail

Process-driven

Time management

Willingness to ask questions

AI basics

Education

Bachelor's degree or equivalent

Job description

Welocalize is seeking detail-oriented Data Labeling Analysts to join our onsite team supporting speech and language AI systems. This production role focuses on creating high-quality labeled data from audio and language content, following strict guidelines and ensuring data integrity at scale.

Candidates must be located near Bay Area locations or able to commute to onsite offices; strong attention to detail and consistency are essential.