Audio Engineer - AI Trainer

mercor; España; Remote; EUR 48,000 - 66,000; Part time

Job summary

Mercor is seeking a Music Production Expert for Spanish (ES). This remote contract role requires 20+ hours/week for up to 6 months, with compensation of $39–$54/hour. You will evaluate AI-generated music, ensure vocal and mix quality, and help label songs by genre and structure. Start date is immediate.

The ideal candidate has 2+ years in music production or audio engineering, native Spanish, and strong ability to follow English instructions. Formal training or commercial credits are a plus.

Qualifications

• Must have native or near-native Spanish (ES) proficiency.
• Ability to follow detailed written instructions in English.
• 2+ years of experience as a music producer, audio engineer, or mixing engineer.
• Headphones or studio monitors suitable for critical listening.

Responsibilities

• Evaluate AI-generated music across genres for musicality, creativity, and production quality.
• Compare songs on prompt adherence, vocal quality, and mix quality.
• Label songs by genre, structure, instruments, vocals, and musical characteristics.
• Review AI-generated lyrics and vocals for quality and accuracy.
• Work independently and asynchronously to meet deadlines and improve AI model performance.

Skills

Spanish proficiency (ES)

English instructions

Music production experience

Critical listening gear

Music theory training

Published work/credits

Spanish genres knowledge

Job description

About the job 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: Music Production Expert - Spanish (ES)

Type: Contract

Compensation: $39-$54/hour

Location: Remote

Duration: Up to 6 months

Commitment: 20+ hours/week

Role Responsibilities

• Evaluate AI-generated music across genres for musicality, creativity, and production quality.
• Compare songs on prompt adherence, vocal quality, and mix quality.
• Label songs by genre, structure, instruments, vocals, and musical characteristics.
• Review AI-generated lyrics and vocals for quality and accuracy.
• Work independently and asynchronously to meet deadlines and improve AI model performance.

Qualifications

• Must-Have: Native or near-native proficiency in Spanish (ES).
• Ability to follow detailed written instructions in English.
• 2+ years of experience as a music producer, audio engineer, or mixing engineer.
• Headphones or studio monitors suitable for critical listening.
• Preferred: Formal training in music performance, theory, or composition.
• Credited or commercially released production, engineering, or mixing work.
• Broad familiarity with contemporary Spanish (ES) genres, sub-genres, and artists.

Start Date: Immediate