Welo Global
Project Perseus | Speech & Voice AI Analyst - Portuguese (Brazil) Speakers
California +9 · On-site · Full-time · Posted Jul 16, 2026
- Location
- California
Sunnyvale, CA
San Francisco, CA
Seattle, WA
Redmond, Washington
Burlingame, CA
New York City Metropolitan Area
Los Angeles, CA
Washington, D.C.
Boston, MA - Experience
- 1 year of work experience in data labeling, annotation, or content-focused work; alternatively, a Bachelor's degree or equivalent academic qualification in a related field.
- Education
- A Bachelor's degree or equivalent academic qualification in a related field is an alternative to the stated work experience.
- Visa sponsorship
- Must be authorized to work in the U.S.; no visa sponsorship.
About the job
Labels and annotates speech and voice datasets to produce accurate training data for AI systems.
What you'll do
- Transcribe, categorize, tag, and annotate audio and language data at high volume.
- Follow guidelines, maintain output and quality standards, and escalate ambiguous cases.
- Support AI training data production and participate in team calibration sessions.
What they ask for
- Native-level fluency in Portuguese (Brazil).
- Strong written communication skills and language fundamentals.
- Ability to follow detailed instructions and maintain accuracy in repetitive, structured work.
- Ability to manage time, maintain steady output, and escalate questions when needed.
Nice to have
- Basic familiarity with AI, speech technology, or language data.
Pay
USD 28–28 (per-hour-wage)
AI focus
Produces and labels speech and voice data for AI training pipelines.
Model-written summary · the original posting is authoritative