Audio Engineer - Fully Remote | Upto $26/hr

Obsidian; Greater London; Remote; < GBP 1,000; Full time

Job summary

Mercor is seeking experienced music professionals to assess generative music AI models, working in Portuguese and English. You will rate samples on musicality, creativity, and production quality, and annotate songs with taxonomy-based details.

The role focuses on evaluating lyrics and vocal performance against references, and scoring the quality of training data. Flexible, project-based work with a six-month horizon.

Qualifications

• Native or near-native Portuguese and ability to follow detailed English instructions.
• Professional or semi-professional music experience.
• Headphones or studio monitors suitable for careful listening.

Responsibilities

• Rate AI-generated music samples head-to-head on musicality, creativity, prompt adherence, vocal quality, and production/mix quality.
• Annotate songs with genre, structure, and vocal/instrumental characteristics using a structured taxonomy.
• Evaluate generated lyrics and vocal performance against reference material.
• Score the quality of musical training data.

Skills

Portuguese language proficiency

Music experience

Attention to detail

Follow English instructions

Education

Formal training in music performance/theory/composition

Tools

Headphones or studio monitors

Job description

Mercor is hiring experienced music professionals to evaluate generative music AI models, in partnership with a leading AI lab.

You will assess AI-generated music across a wide range of genres and rate it against detailed quality standards, working in Portuguese and English.

Key Responsibilities

• Rate AI-generated music samples head-to-head on musicality, creativity, prompt adherence, vocal quality, and production/mix quality
• Annotate songs in detail: genre and sub-genre classification, song structure, and vocal and instrumental characteristics, using a structured taxonomy
• Evaluate generated lyrics and vocal performance against reference material
• Score the quality of musical training data

Requirements

• Native or near-native proficiency in Portuguese, and the ability to follow detailed written instructions in English
• Professional or semi-professional experience in music, via either track below
• Headphones or studio monitors suitable for careful listening

We hire on either of two tracks

Production track — 3+ years working as a music producer, audio engineer, or sound mixer, and comfort using audio-engineering vocabulary to describe a mix by ear.

Music and language track — deep knowledge of the Portuguese music scene, with professional or semi-professional experience as a songwriter, lyricist, performer, composer, or music journalist. Studio production credentials are not required on this track.

Nice to have

• Formal training in music performance, theory, or composition
• Experience writing, performing, or producing released music in Portuguese
• Broad familiarity with contemporary Portuguese genres, sub-genres, and artists

Pay

• This role is paid per completed task, not per hour
• A task is one completed evaluation of a single music sample, submitted and passing quality review
• The rate shown is a blended average across task types, weighted by expected volume — shorter tasks pay less per task and longer ones pay considerably more
• Delivering more tasks per week moves you into a higher rate band

Project Timeline

• Start date: immediate
• Duration: up to 6 months
• Commitment: flexible. Most experts work around 20 hours per week; there is no upper cap, and high-volume contributors take on considerably more

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.