Regístrate para acceder a todas las funciones de nuestro servicio
  • Búsqueda de ofertas de trabajo
  • Favoritas
  • Crear CV
    Nuevo
  • Salario
  • Alertas de empleo

Transcription Quality Specialist - AI Trainer

Mercor

The role

We are hiring native and near-native Spanish speakers to audit AI training data in their own language , not to produce it.

You will work across two Amazon Sonic audit collections:

  1. Multilingual Transcription Audit. You listen to a recording of human or agent speech, read the transcription an annotator produced, and judge whether it accurately captures what the speaker actually said. You apply a fixed set of error codes, assign a pass or fail verdict, and write a short rationale explaining the decision.

  2. Forced Alignment Audit. You review audio that has already been segmented at the word level by an automated system. For each segment you verify that the start and end timestamps match where the word actually begins and ends, and that the reference transcription matches the spoken form. Where the machine got it wrong, you correct the boundary, split a segment, merge two, add a missing one, or remove one that contains no word.

Both collections run at 5.00 audit hours per task. Every judgment carries a written reason, so this is careful listening work rather than volume work.

Who we are looking for

Native or near-native command of Spanish as spoken in Spain. You were either born and raised in a region where this language and variety is dominant, or you are fully fluent with five or more years of residence in such a region. This is a hard requirement.

Strong English reading and writing. All conventions, error codes, and audit rationale are written in English, so you need to read a detailed rulebook and write clear feedback in it.

Disciplined rubric application. The work rewards people who apply a written standard consistently across hundreds of judgments rather than relying on instinct. Prior transcription, subtitling, localization, linguistic annotation, or QA experience is a strong signal.

Careful listening. You can distinguish similar sounds, identify where one word ends and the next begins in continuous speech, and tell genuine acoustic ambiguity apart from a clear annotator error.

Helpful but not required: prior AI data annotation or model evaluation work, a phonetics or linguistics background, and experience with audio editing or waveform tools.

What the work looks like

You listen, judge, and submit. Where you find an error you tag every applicable error code, not just the first one, and you explain in plain language why the task passed or failed. Critical errors are called out first so the reason for a failure is obvious to the reader.

You will complete a short calibration phase before production work begins.

#J-18808-Ljbffr

Oferta de empleo publicada 1 día atrás
Ofertas similares que pueden interesarteSegún la Transcription Quality Specialist - AI Trainer en Madrid
  •  ...technical talent with leading AI research labs. Headquartered...  ...Position: Sonic Audit Specialist - Spanish Type: Contract...  ...Spanish by auditing multilingual transcription and forced alignment tasks...  ...AI model training and data quality . Work independently... 
    Ofertas de empleo recomendadas
    Trabajo remoto
    Trabajo de verano
    Contrato
    Horario flexible

    Mercor

    Madrid
    25 días atrás
  • 14.3 $/hora

     ...Spanish languagecould help improve the AI. WHAT YOU'LL DO Review...  ...accuracy, fluency, and overall translation quality. Select the preferred translation...  ...Review audio files and their corresponding transcriptions, evaluating accuracy, completeness, and... 
    Ofertas de empleo recomendadas
    Freelance
    Contrato
    Remoto

    Welocalize

    Madrid
    Hace un mes
  •  ...The Project TSMG is looking for Quality control specialists to support an AI language project focused on improving...  ...and ensure that AI-generated transcripts have been accurately converted into...  ...against the original lexical transcript and project guidelinesVerify the... 
    Ofertas de empleo recomendadas

    Tsmg Holding

    Madrid
    3 días atrás
  •  ...Mercor is partnering with a leading AI research lab to build next-generation text-to-speech (TTS) systems capable of producing natural...  ...native Castilian/Peninsular Spanish accents to contribute high-quality voice recordings for training and evaluating cutting-edge speech... 
    Ofertas de empleo recomendadas

    Mercor

    Madrid
    1 día atrás
  • 250 $/mensuales

     ...Castilian Spanish Voice Actors to work directly with a leading AI lab, improving their model's ability to handle and produce...  ...punctuation, commas and dashes. It is very important that you record transcripts exactly as written, or edit them to reflect natural pacing.... 
    Ofertas de empleo recomendadas
    Contrato

    Mercor

    Madrid
    1 día atrás
  •  ...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 .... 
    Trabajo de verano
    Contrato
    Remoto

    Mercor

    Madrid
    Hace un mes
  •  ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...AI-generated music across various genres. Rate against detailed quality standards in Spanish (ES) and English . Compare AI-generated... 
    Trabajo de verano
    Contrato
    Remoto
    Inicio inmediato
    Horario flexible

    Mercor

    Madrid
    Hace un mes
  •  ...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 .... 
    Trabajo de verano
    Contrato
    Remoto

    Mercor

    Madrid
    28 días atrás
  •  ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...5-10 hours/week Role Responsibilities Record high-quality voice samples across diverse scripts such as conversational, narrative... 
    Trabajo de verano
    Contrato
    Remoto

    Mercor

    Madrid
    Hace un mes
  •  ...build, integrate and support AI applications with confidence....  ...technical workshops, train-the-trainer sessions and hands-on labs for...  ...localise examples. Keep delivery quality high across regions, cohorts...  ...provided, and you grow into a specialist role in a new, high-visibility... 
    Tiempo completo
    Desde casa
    Horario flexible

    nonplusultra Sales GmbH

    Madrid
    11 días atrás
  •  ...DWS Group in Madrid is seeking a Smart Automation & AI Associate to translate operational pain points into scalable AI-driven solutions...  ...leverage Python, SQL, and workflow automation to improve data quality and drive efficiency across Run the Bank and Change the Bank... 

    Deutsche Bank AG

    Madrid
    5 días atrás
  •  ...Overview Prolific is building the biggest pool of quality human data in the world. We support AI development by connecting researchers with a global pool of participants for paid studies. Role: AI Trainer - Advanced Korean Fluency The role involves training... 
    Autónomo
    Desde casa
    Remoto
    Horario flexible

    Prolific

    Madrid
    2 días atrás
  •  ...Agency seeks a Spanish language expert to help shape the future of AI by challenging models on language skills such as verb conjugation, agreement, subjunctive usage, sentence structure, and regional dialects. You will document failures and help harden model reasoning... 
    Remoto

    Agency

    Madrid
    3 días atrás
  • 10x Team B.V in Spain seeks a Freelance Competition Law Specialist – AI Trainer to help train AI models on competition law, regulatory compliance, and antitrust issues. This remote, project-based role offers flexible hours (8–20 per week) and EU/UK-based opportunities... 
    Freelance
    Remoto
    Horario flexible

    10X Team B.V

    Madrid
    3 días atrás
  • 7 $/hora

     ...A leading AI training firm is seeking a Financial Institutions Specialist for a remote freelance role. You will use your expertise in banking systems and financial regulations to engage AI models in real-world scenarios, ensuring factual correctness and offering analytical... 
    Por hora
    Freelance
    Remoto

    Ai Training Firm

    Madrid
    3 días atrás
  • 8 $/hora

    Somali Language AI Trainer to review content and provide linguistic feedback for AI model training. Remote role with flexible pay based on experience.
    Remoto

    Invisible Expert Marketplace

    Madrid
    3 días atrás
  •  ...all applications and next steps. Our partner is looking for a AI Trainers Network - English based in Spain. As part of a global AI contributor...  ...your availability. Your work may directly influence the quality, relevance, accuracy, and inclusiveness of advanced AI systems... 
    Temporal
    Remoto

    Jobgether Srl

    Madrid
    3 días atrás
  • 10x Team invites a freelance Infrastructure Optimization Specialist - AI Trainer to join 8–20 hours/week, remote (EU/UK). You'll shape AI infrastructure guidance and validate deployment scenarios while enjoying flexible, project-based work.Based in EU or UK, you'll review... 
    Freelance
    Remoto
    Horario flexible

    10X Team B.V

    Madrid
    3 días atrás
  •  ...What if your Spanish language skills could help improve the AI.     PROJECT DETAILS Job Title: Hydrus - Voice Contributor - Spanish(Spain) Project Overview: a scripted and conversational audio data collection project Language: Spanish(Spain) Location: Remote... 
    Por hora
    Práctica
    Remoto

    Welo Data

    Madrid
    19 horas atrás
  •  ...A technology company is looking for a Spanish Language Specialist (Latin America) to engage with AI models. The role involves verifying linguistic accuracies and documenting errors, suited for those with a background in Spanish language or linguistics. Offers a... 
    Por hora
    Remoto

    Meridial Marketplace, By Invisible

    Madrid
    3 días atrás
  • 8 $/hora

     ...Agency is seeking science specialists fluent in Spanish (Spain) to power AI training and evaluation. You will engage with models on topics like energy transformation, atomic structure, planetary motion, ecological systems, and more, documenting failures and proposing... 
    Por hora
    Contratista
    Remoto

    Agency

    Madrid
    3 días atrás
  •  ...Jobgether SRL, on behalf of a partner company, seeks English-speaking AI Trainers in Spain to contribute to AI training, annotation, evaluation, and prompt creation through remote projects. Projects vary from a few days to several weeks, enabling flexible participation... 
    Remoto

    Jobgether Srl

    Leganés, Comunidad de Madrid
    3 días atrás
  •  ...Lever, Inc. is seeking an Investment Specialist - Freelance AI Trainer Project based in Spain. In this remote role, you will train AI models using your expertise in financial markets, asset management, and portfolio concepts to improve AI reasoning for equity analysis... 
    Freelance
    Remoto

    Lever, Inc.

    Madrid
    3 días atrás
  •  ...This is a project-based opportunity on an AI training platform. No fixed hours, no commitment beyond what fits your schedule....  ...no background music, TV, traffic, or other people talkingAudio quality: Clear voice, close to the mic, one speaker only, no echo. A... 
    Freelance

    Mindrift Data Annotation Projects

    Madrid
    3 días atrás
  •  ...Prolific is looking for an AI Trainer with advanced French fluency in Madrid. In this role, you will evaluate and train cutting-edge AI models while performing tasks such as analyzing and editing in French. Candidates must have verifiable experience, strong attention... 

    Prolific

    Madrid
    2 días atrás
  •  ...Automation & AI Specialist En BBVA Allianz estamos transformando la forma en que protegemos a nuestros clientes, impulsando soluciones innovadoras que combinan tecnología, datos e inteligencia artificial. Buscamos una persona apasionada por la automatización y la transformación... 
    Indefinido
    Aprendiz
    Práctica
    Tiempo completo
    Centro de la ciudad
    Trabajo híbrido
    Horario flexible

    BBVA Allianz Compañía de Seguros y Rease

    Madrid
    Hace un mes
  • 10x Team B.V in Spain seeks a senior eIDAS2 Specialist and AI Trainer for freelance engagement. You will review and refine AI outputs related to eIDAS2 and QES, ensuring regulatory alignment and practical accuracy across EU/UK contexts.This remote role offers 8–20 hours... 
    Freelance
    Remoto

    10X Team B.V

    Madrid
    3 días atrás
  • Entry-level remote role for a Spanish Language Specialist to verify AI model linguistic accuracy and document errors for a tech company.
    Remoto

    Meridial Marketplace, By Invisible

    Madrid
    3 días atrás
  •  ...About the role  Help train and evaluate AI agents that work inside a real CAD environment on long engineering tasks, work that would...  ...technology projects while gaining experience building high-quality solutions for a global platform.  Participate in performance-based... 
    Por hora
    Tiempo parcial
    Freelance
    Remoto

    Mindrift

    Madrid
    7 días atrás
  • 7 $/hora

    Enhance AI models by training them in the Korean language. Requires expertise in Korean grammar and linguistics, involving conversation with AI and error documentation.
    Remoto

    Meridial Marketplace, By Invisible

    Madrid
    3 días atrás

¿Quieres recibir más ofertas?

Suscríbete y recibe ofertas similares para Transcription Quality Specialist - AI Trainer. ¡Entérate antes que nadie!