Disputes Lawyer - AI Trainer

mercor; España; Remote; EUR 172,000 - 184,000; Full time

Job summary

Mercor is seeking a Litigation Lawyer (Spain) for a remote contract role, offering an hourly rate of $140–$150 and an approximate 10 hours commitment. You will evaluate AI-generated responses, compare outputs from two platforms, and score results against a rubric.

Ideal candidates have 2+ years in litigation, are qualified to practise in Spain, and are fluent in Spanish with precise written communication. Independent work and strict deadline adherence are essential.

Qualifications

• At least 2 years of litigation experience, 3+ preferred.
• Qualified to practise in Spain (colegiado/a) with strong Spanish procedural knowledge.
• Native or fluent Spanish with precise written communication.

Responsibilities

• Evaluate AI-generated responses by running prompts across two AI platforms.
• Compare outputs side by side to ensure accuracy and consistency.
• Score each response against a standardized rubric.
• Submit concise written feedback to improve AI model performance.
• Work independently and meet deadlines with high-quality standards.

Skills

Litigation experience

Spanish language

Education

Qualified to practise in Spain (colegiado/a)

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: Litigation Lawyer (Spain) Type: Contract Compensation: $140–$150/hour Location: Remote Commitment: ~10 hours

Role Responsibilities

• Evaluate AI-generated responses by running the same prompts across two AI (LLM) platforms .
• Compare outputs from both platforms side by side to ensure accuracy and consistency.
• Score each response against a standardized rubric provided by the team.
• Submit concise written feedback for every evaluation to improve AI model performance .
• Work independently and adhere to deadlines while maintaining high-quality standards.

Qualifications Must-Have

• Primarily law-firm experience — at least 2 years (3+ preferred) in litigation, disputes, or contentious practice.
• Qualified to practise in Spain (colegiado/a) with a strong command of Spanish litigation and procedural law.
• Native or fluent Spanish , with precise written communication.
• Ability to work independently to a rubric and meet deadlines.

Compensation & Legal

• Confidentiality: all work is covered by NDA