> Markdown version of [/jobs/ext/1184653-spanish-caption-annotation-specialist](https://www.wearedevelopers.com/jobs/ext/1184653-spanish-caption-annotation-specialist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Spanish Caption Annotation Specialist - **Company:** Agents Only - **Location:** Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Sound Recording and Reproduction, Speech Recognition, Speech Synthesis - **Published:** July 5, 2026 - **Apply:** https://es.indeed.com/viewjob?jk=67d042bc5d26475d ## About the Role * Experience in AI data annotation, multimedia annotation, audio labeling, or transcription. * Experience working on speech, language, captioning, or localization projects. * Familiarity with annotation platforms and quality assurance processes. * Experience reviewing AI-generated content is an advantage. * Previous experience working remotely as an independent contractor or freelancer is preferred., * Professional-level proficiency in Spanish (reading, writing, listening, and comprehension). * Strong written Spanish grammar and communication skills. * Excellent listening and audio comprehension abilities. * Exceptional attention to detail and consistency. * Ability to understand and follow detailed annotation guidelines. * Comfortable working independently in a remote environment. Preferred QualificationsFor Vocal Caption Annotation * Experience with Text-to-Speech (TTS), Automatic Speech Recognition (ASR), or speech AI projects. * Background in linguistics, phonetics, speech sciences, translation, or language technologies. For Music & Sound Effect Annotation, * Audio Production * Multimedia Production * Film or Media Studies * Broadcasting * Related audio disciplines, Educational background or equivalent professional experience in one or more of the following is preferred, If you're based in Spain, have excellent Spanish language skills, and enjoy detail-oriented work that contributes to advancing AI technologies, we'd love to hear from you. ## Description We are seeking detail-oriented Spanish Caption Annotation Specialists based in Spain to support a multimedia annotation project focused on enhancing machine-generated captions. In this role, you will review AI-generated captions and create clear, accurate, and descriptive annotations for spoken dialogue, music, and environmental sounds. Your work will help improve AI-powered speech recognition, multimedia accessibility, and language technologies. Depending on project requirements and your qualifications, you may participate in one or more annotation phases. What You'll Do As a Caption Annotation Specialist, you will: * Review machine-generated captions for assigned multimedia content. * Produce accurate and descriptive annotations following detailed project guidelines. * Ensure captions are grammatically correct, natural, and easy to understand in Spanish. * Maintain high annotation quality while meeting productivity expectations. * Participate in calibration sessions and quality reviews when required. * Meet project deadlines while consistently adhering to annotation standards. Vocal Caption Annotation Create detailed descriptions of spoken audio, including: * Voice characteristics * Speaking style and tone * Emotion and delivery * Speech rate and pacing * Additional relevant vocal attributes Music Caption Annotation Describe musical content, including: * Musical genre or style * Instrumentation * Tempo and rhythm * Mood and atmosphere * Audio effects and production characteristics Sound Effect Caption Annotation Describe environmental and sound effects, including: * Type of sound * Timing within the scene * Relative volume * Duration * Context and overall audio characteristics, * Contributors must successfully complete all required project assessments before onboarding. * Annotation quality will be continuously monitored through quality assurance reviews. * Consistent adherence to project guidelines is required throughout the engagement. * Project availability may vary depending on client demand, language requirements, and business needs. * Contributors may be assigned to one or more annotation phases based on qualifications and demonstrated performance. ## Related Videos - [Building a Browser-Based Karaoke Game with Web Speech API](https://www.wearedevelopers.com/videos/1274-building-a-browser-based-karaoke-game-with-web-speech-api) - [Raise your voice!](https://www.wearedevelopers.com/videos/10-raise-your-voice) - [Edit Your Future: Queerverse Radical AI](https://www.wearedevelopers.com/videos/909-edit-your-future-queerverse-radical-ai) - [Is the web ready for voice user interfaces?](https://www.wearedevelopers.com/videos/1142-is-the-web-ready-for-voice-user-interfaces) - [Minimal infrastructure for Real‑Time Phone Agents: transcripts in, responses out](https://www.wearedevelopers.com/videos/1736-minimal-infrastructure-for-real-time-phone-agents-transcripts-in-responses-out) - [HR ROBO SAPIENS: Decoding AI Agents and Workflow Automation for Modern Recruitment](https://www.wearedevelopers.com/videos/1470-hr-robo-sapiens-decoding-ai-agents-and-workflow-automation-for-modern-recruitment) ## Related Articles - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Accessibility tip: Adding live captions to presentations in Powerpoint](https://www.wearedevelopers.com/magazine/508-accessibility-tip-adding-live-captions-to-presentations-in-powerpoint) - [Average Salary in Spain](https://www.wearedevelopers.com/magazine/308-average-salary-in-spain) - [13 AI Tools You Have to Try](https://www.wearedevelopers.com/magazine/219-13-ai-tools-you-have-to-try) - [Prompt Engineering is a Job of the Past](https://www.wearedevelopers.com/magazine/342-prompt-engineering-is-a-job-of-the-past)