Job details
- Location
- Sunnyvale, CA
- Work type
- Onsite
- Compensation
- $54,080 - $58,240/yr
- Posted
- Oct 6, 2026
- Apply on
- jobs.lever.co
About this role
Welo Data supports speech and voice AI systems by building accurate, structured, and representative datasets. The Speech & Voice AI Analyst will perform high-volume labeling and annotation of audio, speech, and language data, maintaining accuracy, consistency, and throughput while supporting AI training pipelines.
What you'll do:
- 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
What they're looking for:
- Must be authorized to work in the U.S. (no visa sponsorship)
- Native-level fluency in Korean
- 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 academic qualification in a related field
- 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 escalate when needed
- Basic familiarity with AI, speech technology, or language data
Benefits:
- Paid Vacation: 6 days
- Paid Company Holidays: 2 days (Memorial Day and Labor Day)
- Paid Sick Leave: accrued per applicable state law and company policy
- Medical, Dental, and Vision Insurance (eligibility applies)
- Health Savings Account (HSA)
- 401(k) Retirement Plan
- Employee Assistance Program
- Additional voluntary benefits (life, accident, critical illness, etc.)
- Onsite Perks (where applicable): Free breakfast, lunch, and dinner
- Stocked micro-kitchens with snacks and beverages
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