Onsite Speech & Voice AI Data Labeling Analyst

Welo Global; Burlingame (CA); On-site; USD 36,000 - 39,000; Full time

Benefits offered by this job

Paid Vacation

Paid Holidays

Medical Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

Employee Assistance Program

Job summary

Welo Data is seeking detail-oriented Data Labeling Analysts to support speech and voice AI systems. This 100% onsite role focuses on producing high-quality labeled data across audio and language tasks, with strict adherence to guidelines and quality standards.

The position requires strong judgment, reliability, and the ability to work efficiently in repetitive workflows while collaborating with the team to calibrate quality and processes. Must be located in or able to commute to target cities.

Qualifications

• Native-level fluency in Polish.
• 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 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.

Responsibilities

• 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.

Skills

Polish (native)

Attention to detail

Communication skills

Time management

Data labeling

Education

Bachelor’s degree or equivalent

Job description

Welo Data is seeking detail-oriented Data Labeling Analysts to support speech and voice AI systems. This 100% onsite role focuses on producing high-quality labeled data across audio and language tasks, with strict adherence to guidelines and quality standards.

The position requires strong judgment, reliability, and the ability to work efficiently in repetitive workflows while collaborating with the team to calibrate quality and processes. Must be located in or able to commute to target cities.