Sunnyvale, CA

Project Perseus | Speech & Voice AI Analyst- Korean Speakers

Onsite$54,080 - $58,240/yrPosted Oct 6, 2026

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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