Project Perseus | Speech & Voice AI Analyst- Korean Speakers

Weloglobal
California
On-site

Who this role is best for

Aimed at mid-level professionals with native-level Korean fluency who thrive in structured, process-driven environments. This role emphasizes onsite work in major U.S. cities and demands consistency in data labeling tasks.

Best fit for

  • Mid-level professionals with native-level Korean fluency and a background in data labeling or content-focused work
    — “Native-level fluency in Korean
  • Candidates who can maintain accuracy and consistency in repetitive, high-volume tasks
    — “ability to maintain accuracy in repetitive tasks
  • Individuals comfortable with adapting to evolving guidelines and workflows
    — “adapt to evolving guidelines and workflows as systems and requirements change

Things to consider

  • Onsite work is mandatory, with no remote options available for this role
    — “This is a 100% onsite position — remote work is not available for this role
  • Candidates must be located in or able to commute to one of the specified U.S. cities
    — “candidates must be located in or able to commute to one of the following cities
  • Work authorization verification is required within the first three days of employment
    — “complete a live video verification with their selected IDs and provide photos

How to stand out

  • Emphasize experience with audio transcription and language data processing in your resume
    — “Work with audio and language data, including transcription, categorization, and tagging
  • Highlight your ability to follow detailed instructions and apply them consistently
    — “Ability to follow detailed instructions and apply guidelines consistently
  • Showcase your track record of maintaining high throughput and quality in repetitive tasks
    — “Maintain strong throughput while meeting quality expectations
  • Demonstrate willingness to ask questions and escalate ambiguous cases during interviews
    — “Willingness to ask questions and escalate when needed
Pace · SteadyCollaboration · MediumAutonomy · MediumDecision Impact · IndividualLevel · Junior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • high-volume data labeling and annotation tasks
  • quality assurance and food safety compliance checks
Typical background
data labeling, annotation, or content-focused workBachelor's degree in a related field

Skills & requirements

Required

Data LabelingAnnotationAudio And Language Data HandlingAttention To DetailProcess-driven Environments

Preferred

AISpeech TechnologyLanguage Data

Stack & domain

Data LabelingAnnotationTranscriptionCategorizationTaggingAttention To DetailConsistencyJudgmentCommunicationTime ManagementLeadershipLanguageDataAI Systems

About the role

Original posting from Weloglobal via Lever

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: Onsite (Bay Area, Seattle, NYC, or client-dependent) 

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: NYC, Seattle, Bellevue, Redmond, San Francisco, Sunnyvale, Burlingame, Austin, Los Angeles, Washington DC, Chicago, Boston. 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:

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 is a plus 

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

Commuter benefits, including shuttles and bike-to-work options

Unique campus features depending on location

Compensation:

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.

Please note that in order to verify work authorization as is required by Federal law (I-9 process), all new employees must complete a live video verification with their selected IDs and provide photos of these selected IDs within their first 3 days of employment.

To know more details (Click here)

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.  In addition, we employ anti-fraud checks to ensure all candidates meet the requirements of the program.

As a trusted global transformation partner, Welocalize accelerates the global business journey by enabling brands and companies to reach, engage, and grow international audiences. Welocalize delivers multilingual content transformation services in translation, localization, and adaptation for over 250 languages with a growing network of over 400,000 in-country linguistic resources. Driving innovation in language services, Welocalize delivers high-quality training data transformation solutions for NLP-enabled machine learning by blending technology and human intelligence to collect, annotate, and evaluate all content types. Our team works across locations in North America, Europe, and Asia serving our global clients in the markets that matter to them. www.welocalize.com

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

Source: Weloglobal careers (Lever)

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