Speech & Voice AI Analyst - Spanish Speakers

Welo Data; California (MO); On-site; USD 35,817 - 38,572; Full time

Benefits offered by this job

Paid Sick Time & Paid Holiday (combined): 15 days

Medical, Dental, and Vision Insurance

401(k) Retirement Plan

Free breakfast, lunch, and dinner

Commuter benefits

Stocked micro-kitchens

Job summary

Welo Data is hiring a Data Labeling Analyst in California. This full-time role focuses on executing data labeling for speech and voice AI systems. Responsibilities include maintaining quality and accuracy in repetitive tasks while ensuring data integrity. Applicants must have professional-level Spanish fluency and experience in data labeling. Benefits include paid holidays, medical insurance, and onsite perks like free meals. Join us to impact AI systems and gain foundational experience in data operations.

Qualifications

• Must have professional-level fluency in Spanish.
• 1–2 years of data labeling or annotation experience required.
• High attention to detail is essential.

Responsibilities

• Execute high-volume data labeling and annotation tasks.
• Ensure consistency, accuracy, and data integrity.
• Work with audio and language data.

Skills

Professional-level fluency in Spanish

Strong written communication skills

Attention to detail

Experience in data labeling or annotation

Education

1–2 years of experience in data labeling or content-focused work

Job description

Overview

Welo Data is looking for detail-oriented and reliable individuals to join our team as Data Labeling Analysts, supporting speech and voice AI systems.

This is a high-impact production role focused on building the datasets that power real-world AI systems. You’ll be working with audio, speech, and language data — helping ensure models are trained on accurate, well-structured, and representative inputs.

While this role is more execution-focused than evaluation-heavy roles, it still requires strong judgment, attention to detail, and consistency. The work sits at the intersection of language, data, and AI systems — where precision and discipline matter at scale.

We’re looking for people who are dependable, focused, and take pride in producing high-quality work, even across repetitive workflows.

Project Details

• Job Title: Data Labeling Analyst
• Hiring in: California (On-Site: San Francisco, Sunnyvale, or Burlingame)
• Hours: Full-time, 40 hours per week
• Employment Type: W2 Full-Time Employee
• Work Authorization: Must be authorized to work in the U.S. (no visa sponsorship)
• Pay Rate: $26 - $28/hour

Important: This is a 100% onsite position — remote work is not available for this role. To be considered, candidates must be located in or able to commute to one of the following cities: New York City, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, or Burlingame. Please only apply if you meet this location requirement.

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 We’re Looking For

• Professional-level fluency in Spanish
• Strong written communication skills and language fundamentals
• 1–2 years of experience in data labeling, annotation, or content-focused work
• 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 is a plus

Benefits

• Paid Sick Time & Paid Holiday (combined): 15 days
• Paid Holidays: Memorial Day and Labor Day
• 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
• Commuter benefits, including shuttles and bike-to-work options
• Unique campus features depending on location

Why This Role

This role is a critical part of how modern AI systems are built. The data you produce directly impacts how speech and voice models understand and interact with real users.

It’s a great entry point into AI operations, offering exposure to large-scale systems and the opportunity to build foundational experience in data, language, and AI workflows.