Empleos de remote document annotator for ai training en madrid

Alignerr is seeking a Document Review Specialist (AI Training) to read, annotate, and classify diverse documents for AI models. This is a remote hourly contract with flexible scheduling. You will annotate, extract key data points, identify entities and relationships, and apply structured guidelines with precision across large document volumes. Work...

Welo Global is seeking detail-oriented Trainers to support an AI data annotation project. This remote freelance role involves reviewing pre-seeded questions paired with images and providing gold-standard answers based on visual content.Ideal candidates are native Spanish speakers with strong English, a bachelor's degree, and meticulous attention to detail....

Welo Global is seeking detail-oriented Trainers to support an AI data annotation project. This remote freelance role involves reviewing pre-seeded questions paired with images and providing gold-standard answers based on visual content. Ideal candidates are native Spanish speakers with strong English, a bachelor's degree, and meticulous attention to detail....

RemoteJobsOne is seeking a Statistician for a fully remote contractor role open to candidates based in Spain. You will clean and analyze real-world datasets, create visualizations, and document methods for non-technical audiences. Strong Python or R skills and experience handling messy data are preferred. Collaboration in a remote setting is essential.The...

Ethos is a new expert network built by a McKinsey/SoftBank/DeepMind team and backed by world-leading investors like General Catalyst. We connect experts with investors and consultancies for paid expert calls, speaking engagements, and advisory opportunities.We are seeking grants managers with 4+ years in nonprofit program management to create, evaluate, and...

Ethos is seeking experienced credit analysts to help train our AI models on professional document, spreadsheet, and slide deck tasks. You’ll work 5–20 hours weekly, remotely, with a $100/hour compensation.Ideal candidates have 5+ years in equity research, credit analysis, or valuation advisory and expert document, spreadsheet, and slide craftsmanship....

RemoteJobsOne is seeking an experienced Accountant/Auditor for a fully remote contractor role, open to candidates based in Spain. You will apply financial reporting, auditing, and tax compliance expertise to support ongoing projects and ensure regulatory accuracy. This position emphasizes rigorous financial oversight and input for AI training datasets. Ideal...

RemoteJobsOne in Spain seeks a Mathematics Expert to contribute domain knowledge for training next‑generation AI systems. You will apply rigorous mathematical reasoning, write proofs, and provide high‑quality analyses, without requiring prior AI experience. This is a fully remote contractor position appealing to researchers passionate about mathematics...

Mercor seeks experienced physicians who are native or fluent in Spanish to help train and evaluate AI agents on realistic medical tasks in Spain. You will build workspaces, files, prompts, and grading rubrics based on real medicine practice. Details: remote, about 21 hours per week, paid hourly, pilot running Oct 23 to Nov 19. Requires clinical practice...

Mercor is seeking an experienced program/operations manager fluent in Spanish to lead delivery for a team of senior domain experts training and evaluating AI agents. You will own throughput, quality, and expert performance for the Spanish (Spain) cohort across finance, consulting, law, medicine, STEM and HR.This remote role is 40 hours per week with a...

Alignerr is seeking Mathematics Experts to help train AI models with rigorous mathematical reasoning. Positions are fully remote hourly contracts for academics, researchers, and advanced practitioners who want to apply deep theory to real-world AI challenges.You'll design and review advanced math problems, collaborate asynchronously with AI researchers, and...

Alignerr is seeking a Nursing Informatics Specialist to help train AI using real-world nursing experience. You will evaluate AI outputs related to nursing workflows and EHR content, providing clear feedback to improve AI understanding of clinical practices.Remote, hourly contract with flexible hours and opportunities for ongoing collaboration. Requires RN...

SME Careers is seeking a Catalan Quality Assurance Lead for a remote, hourly contractor role. You will oversee quality and trainer performance across Catalan AI training projects, review AI-generated content, and provide precise feedback to ensure adherence to guidelines.The role requires strong Catalan and English skills, meticulous attention to detail, and...

Alignerr Corp. is seeking a GRC Analyst to help train and evaluate AI systems by applying security, privacy, and risk controls across major frameworks. The role emphasizes policy interpretation, risk assessment, and data quality for AI training sets.The position is remote, hourly, and part of a freelance-friendly arrangement, with 10–40 hours per week and...

Mercor connects elite creative and technical talent with AI research labs. This remote engagement trains AI agents on HR tasks, builds workspaces to simulate real HR environments, and writes prompts with grading rubrics based on HR practices in Spain. Collaborate with AI researchers to improve task accuracy and work independently to meet deadlines. Requires...

A cutting-edge payment solutions company is hiring a Database Administrator. The ideal candidate will have over five years of experience with SQL Server, proficiency in cloud environments, and fluent English skills. Responsibilities include enhancing automation and driving systemic improvements across engineering teams. The company offers a collaborative...

Alignerr Corp. is seeking an Identity & Access Management (IAM) Analyst (AI Training) to help train and evaluate AI models on real-world identity and access scenarios. This remote hourly contract role focuses on analyzing IAM/SIDOC scenarios, classifying issues, and validating data for AI training.You will contribute to training data and provide feedback to...

YO IT Consulting is seeking an Excel Expert to apply their proficiency in Microsoft Excel to enhance AI training efforts. The role involves analyzing complex Excel files, providing best practices, and collaborating with teams to refine workflows. Ideal candidates will have deep Excel knowledge and strong analytical skills.This position is remote, offering...

Mindrift is seeking a CAD specialist to help train and evaluate AI agents within a real CAD environment. You will design part geometry, build reference solutions, and assess the agent's attempts while working alongside CFD engineers who simulate your geometry.The role requires 5+ years of hands-on CAD modelling with industry tools and an active CAD license....

RemoteJobsOne is seeking a 3D Animator / CGI Artist for a fully remote contract role applicable to candidates in Spain. You will create and annotate high-quality 3D character animations using Blender, Maya, or Cinema 4D to support AI training datasets, focusing on rigging, movement and CGI/VFX pipelines.The position emphasizes attention to detail, strong...