Data Labeling Analyst – Speech & Voice AI

Welocalize

Data Labeling Analyst primarily focusing on machine learning model updates and data annotation. Ensuring data integrity and evaluating performance for efficient deployment at Welocalize in the United States.

Posted 6/3/2026full-timeRemote • New York • 🇺🇸 United StatesMid-LevelSeniorWebsite

About the role

Key responsibilities & impact

Update training and test model databases with new or amended synthetic textual and image data.
Modify and refine machine learning data creation, annotation, and rating guidelines.
Initiate model training processes using internal tools and command-line interfaces.
Evaluate the performance of trained models to gauge their efficacy and readiness for deployment.
Design and develop test and training datasets as per the criteria provided by the project manager and other full-time employees.
Handle data efficiently, ensuring its integrity throughout the workflow.
Engage in data relevance tasks, ensuring data sets are aligned with project goals.
Annotate data accurately, ensuring it adheres to set guidelines.
Conduct manual quality analysis of model results.
Recognize error patterns and report anomalies for further investigation.
Deliver detailed reports on findings, including aspects such as utterance quality, LLM evaluation, ASR bug tracking, and customer pain points to be reviewed by the User Experience Research team.
Implement basic quality control measures and ensure the reliability of processed data.
Utilize intermediate data analysis techniques to extract insights and inform decision-making.
Apply basic knowledge of natural language processing and linguistics to data processing tasks.
Ensure linguistic accuracy in all processed and annotated data.

Requirements

What you’ll need

Bachelor's degree in Computer Science, Data Science, Linguistics or Computational Linguistics or a related field.
Familiarity with command-line tools and interfaces.
Strong analytical skills with the ability to identify patterns and anomalies.
Ability to work in a fast-paced, collaborative environment.
Excellent communication skills.

Benefits

Comp & perks

Health insurance
Retirement plans

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

machine learningdata creationdata annotationmodel trainingdata analysisnatural language processinglinguisticsquality controldata integrityerror pattern recognition

Soft Skills

analytical skillscommunication skillscollaborative workattention to detailproblem-solving

Certifications

Bachelor's degree in Computer ScienceBachelor's degree in Data ScienceBachelor's degree in LinguisticsBachelor's degree in Computational Linguistics