Empleos de data annotation en Madrid

Company Description At Docplanner Group, we’re on a mission to help people live longer, healthier lives. As the world’s largest healthcare platform, each month, we connect 24 million patients with 280k doctors across 13 countries (through brands like ZnanyLekarz, Doctoralia, MioDottore, DoktorTakvimi, and jameda). Our marketplaces, SaaS and AI tools...

Docplanner is seeking a data-conscious QA annotator to design, automate, and run QA workflows and measure quality across projects. You’ll support labeling interfaces in Label Studio, write clear annotation guidelines, and onboard freelance annotators to keep projects moving. You will also assist in data analysis and reporting to track project health and...

**Remote Data Annotation Jobs Madrid (Full-Time, Remote)** Join production-grade AI/ML training workflows by labeling and evaluating data used to improve model performance across NLP, computer vision, and content safety systems. You will follow strict rubrics and maintain strong annotation guidelines compliance to protect training data quality for LLM...

Straumann GroupAt Straumann Group we’re on an exciting journey of growth, innovation, and impact - driven by our mission to improve oral health and transform millions of lives worldwide. United by purpose, we bring our best selves to work every day, embracing a high-performance, player-learner culture that inspires collaboration, curiosity, and ambition....

Remote Data Labeling Jobs in Madrid (Fully Remote) Rex.zone is hiring for a full-time, fully remote data labeling role focused on training-data creation and quality control for AI/ML systems. You will label and evaluate text, images, audio, and conversations used in large language model evaluation and computer vision annotation workflows, improving training...

ResponsibilitiesRobot Operation Operate robotic systems using teleoperation interfaces and specialized controllers Perform demonstrations of physical tasks to generate training data Execute repetitive tasks with a strong focus on consistency and quality Follow detailed operational procedures and data collection protocols Data Collection & Annotation Capture...

A leading tech company situated in Madrid is on the lookout for an AI Content Expert II. This role requires the creation and annotation of complex training data involving writing in various styles. Candidates must exhibit proficiency in Dutch and English, along with strong research abilities. Working closely with a diverse team in the office, you will help...

YO IT Consulting is seeking an AI Trainer Lead to join as a remote, contract-based role. You will train next-generation AI systems by guiding data annotation and evaluation to shape how models learn, reason, and perform through high-quality inputs.The role emphasizes meticulous rubric-based scoring, cross-domain content review, and actionable feedback for...

Rex.zone is hiring for a full-time, fully remote data labeling role focused on training-data creation and quality control for AI/ML systems. You will label and evaluate text, images, audio, and conversations used in LLM evaluation and computer vision annotation workflows, improving training data quality, annotation consistency, and model performance.This...

A technology company in Madrid seeks an AI Content Expert II for data annotation and content generation. Responsibilities include creating training data across modalities, performing quality checks, and making judgments on ambiguous data. The ideal candidate should be proficient in Dutch and English and have a high-school diploma or equivalent, with a strong...

YO IT Consulting is seeking an AI Trainer Lead to join as a remote, contract-based role. You will train next-generation AI systems by guiding data annotation and evaluation to shape how models learn, reason, and perform through high-quality inputs.The role emphasizes meticulous rubric-based scoring, cross-domain content review, and actionable feedback for...

YO IT Consulting is seeking an AI Trainer Lead to join as a remote, contract-based role. You will train next-generation AI systems by guiding data annotation and evaluation to shape how models learn, reason, and perform through high-quality inputs.The role emphasizes meticulous rubric-based scoring, cross-domain content review, and actionable feedback for...

Experteer Overview Lea atentamente toda la información sobre esta oportunidad y luego utilice el botón de solicitud de abajo para enviar su CV y su candidatura. In this role you apply machine learning, deep learning, and computer vision to identity document analysis and fraud detection within Daon’s TrustX platform. You’ll design production-ready...

About the Role We are looking for Robotics AI Data Collection Operators to support the development of next-generation intelligent robotic systems. In this role, you will interact directly with robotic platforms, perform structured tasks, and generate high-quality demonstration data used to train advanced AI models. Your work will contribute to the...

Straumann GroupAt Straumann Group we’re on an exciting journey of growth, innovation, and impact - driven by our mission to improve oral health and transform millions of lives worldwide. United by purpose, we bring our best selves to work every day, embracing a high-performance, player-learner culture that inspires collaboration, curiosity, and ambition....

About The RoleCualquier información adicional que necesite para este trabajo se encuentra en el texto a continuación. Asegúrese de leerla detenidamente y luego envíe su solicitud.We are looking for Robotics AI Data Collection Operators to support the development of next‑generation intelligent robotic systems. In this role, you will interact directly...

**Straumann Group** At Straumann Group we’re on an exciting journey of growth, innovation, and impact - driven by our mission to improve oral health and transform millions of lives worldwide. United by purpose, we bring our best selves to work every day, embracing a high-performance, player-learner culture that inspires collaboration, curiosity, and...

Are you detail-oriented and curious about tech? Welo Data is building a global network of linguists, language enthusiasts, and culturally aware contributors to shape safer, smarter AI. By joining our talent community, you’ll be first in line for flexible, remote projects in annotation, evaluation, and prompt creation—always on your terms. What You’ll...

Data Security & DLP Analyst (AI Training) About The Role At Alignerr, we partner with the world's leading AI research teams and labs to build and train cutting-edge AI models. We're looking for data security professionals who understand how data leaks actually happen — and can help AI systems reason about sensitive information risk the way a seasoned...

Straumann GroupAt Straumann Group we’re on an exciting journey of growth, innovation, and impact - driven by our mission to improve oral health and transform millions of lives worldwide. United by purpose, we bring our best selves to work every day, embracing a high-performance, player-learner culture that inspires collaboration, curiosity, and ambition....