Open position
AI Language Reviewer – Spanish (Spain)
Ref. HL-SPANISH · Posted November 2026 · Spanish (Spain)
Native speakers of Spanish from Spain who assess how well AI systems understand and produce European Spanish.
About HumanLect
HumanLect is a European agency for AI evaluation. We work on projects for companies that build and test language AI: large language models, chatbots, voice assistants and speech recognition. We are expanding our network of native reviewers for Spanish as spoken in Spain.
About the role
As an AI Language Reviewer, you assess how well AI systems understand and produce European Spanish. Your judgement is used to measure and improve model quality for users in Spain, where vocabulary, forms of address and tone differ from Latin American Spanish.
Responsibilities
Depending on the project
- Evaluate and rank AI-generated responses on accuracy, fluency, tone and cultural relevance for Spain
- Check European Spanish conventions, such as vosotros and peninsular vocabulary
- Review and correct speech recognition transcripts, including regional accents and spontaneous speech
- Rate synthetic voices on pronunciation and naturalness
- Follow detailed project guidelines and provide clear written feedback
Requirements
- Native speaker of Spanish from Spain
- Professional working proficiency in English (guidelines are in English)
- Excellent command of Spanish spelling, grammar and register
- Attention to detail and the ability to apply guidelines consistently
- A computer, a stable internet connection and a quiet place to work
Preferred qualifications
- Living in Spain (required for some projects)
- Familiarity with regional accents, such as Andalusian, Canarian or Castilian
- Knowledge of Catalan, Valencian, Galician or Basque
- Experience in translation, localisation, transcription, linguistics, editing or teaching
- A professional background in law, healthcare, finance or IT
What we offer
- Freelance work from home, on your own schedule
- Project-based assignments with no minimum hours
- Competitive hourly or per-task rates, agreed before each project
- Clear guidelines and a dedicated point of contact
- Meaningful work on language technology used by millions of people
How to apply
- Complete the short application form (about 2 minutes)
- Shortlisted candidates complete a brief language assessment
- Successful candidates join our reviewer network and are invited when a matching project starts
Apply for this position
AI Language Reviewer – Spanish (Spain) · Ref. HL-SPANISH