Car Return & Fleet Quality Specialist

Europcar; España; Remote; EUR 41,000 - 58,000; Part time

Job summary

Mercor is seeking a Sonic Audit Specialist - Spanish for a fully remote, contract position. You will evaluate AI training data in Spanish, audit multilingual transcription and forced alignment, and ensure high data quality.

The role requires native Spanish (Spain) with strong English, experience in transcription/linguistic annotation, and the ability to apply a disciplined rubric. You will work independently with flexible hours to support model training.

Qualifications

• Native or near-native command of Spanish as spoken in Spain.
• Strong English reading and writing skills.
• Experience in transcription, subtitling, localization, or linguistic annotation.
• Ability to apply a disciplined rubric consistently.

Responsibilities

• Evaluate AI training data in Spanish by auditing multilingual transcription and forced alignment tasks.
• Review and judge transcriptions for accuracy, applying error codes and providing rationale for decisions.
• Verify and correct audio segment timestamps to ensure alignment with spoken words.
• Provide structured feedback to improve AI model training and data quality.
• Work independently with flexible hours to complete tasks with precision.

Skills

Spanish (Spain)

English (reading/writing)

Transcription/linguistic annotation

Disciplined rubric

Tools

Waveform tools

Audio editing

Job description

Transcription Quality Specialist - Fully Remote | Upto $39/hr

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

Position: Sonic Audit Specialist - Spanish
Type: Contract
Compensation: $40/hour
Location: Remote

Role Responsibilities

• Evaluate AI training data in Spanish by auditing multilingual transcription and forced alignment tasks.
• Review and judge transcriptions for accuracy, applying error codes and providing rationale for decisions.
• Verify and correct audio segment timestamps to ensure alignment with spoken words.
• Provide structured feedback to improve AI model training and data quality .
• Work independently with flexible hours to complete tasks with precision.

Qualifications

Must-Have

• Native or near-native command of Spanish as spoken in Spain.
• Strong English reading and writing skills.
• Experience in transcription, subtitling, localization, or linguistic annotation.
• Ability to apply a disciplined rubric consistently.

Preferred

• Prior experience in AI data annotation or model evaluation.
• Background in phonetics or linguistics .
• Experience with audio editing or waveform tools .