Hire the Best Document Reviewers
in Spain

I help AI companies improve the quality, accuracy, and reliability of Spanish AI-generated content so users can trust and understand it. I specialize in reviewing LLM outputs, evaluating AI-generated responses, detecting hallucinations, verifying factual accuracy, assessing instruction-following, and supporting Spanish AI data annotation and training projects. My work is structured, detail-oriented, and aligned with standard AI evaluation and data annotation guidelines. Typical tasks I handle: LLM response evaluation and scoring Hallucination detection Factual accuracy verification Prompt clarity analysis Spanish localization and linguistic review AI output optimization I also refine AI-generated Spanish content so it sounds natural, clear, and ready to publish. In addition, I create high-quality Spanish content for blogs, websites, and digital platforms, ensuring it is well-structured, engaging, and adapted to the target audience. With 15+ years of experience as a tax advisor, I am used to analyzing complex documentation with a strong focus on precision, consistency, and regulatory language — skills that translate directly into high-quality AI evaluation. I can review a short sample task to demonstrate my approach before starting.

Specialist in advanced multilingual translation projects and linguistic evaluation of artificial intelligence models, focused on optimizing translation quality, semantic disambiguation, terminological accuracy, and culturally and contextually appropriate localization, with strong emphasis on the reliability, coherence, and functional precision of AI-generated outputs. Professional experience as a language teacher, translator, and interpreter across English, Russian, Ukrainian, Dutch, and Spanish, with four years of practice in academic teaching environments

Senior Data Scientist | Python/R, ML, ETL, Automation & Generative AI I help clients turn messy data, documents, and business workflows into reliable analyses, machine learning models, automated reports, and maintainable data systems. I am a senior data scientist with strong experience across Python, R, SQL, ETL, statistical analysis, applied machine learning, web/data extraction, reporting automation, and reproducible workflows. My work is strongest when clients need both technical implementation and analytical judgment: clean data pipelines, robust analysis, validated outputs, and results that can be trusted in real decisions. I also bring formal IBM and Google training in Generative AI Engineering, RAG, agentic AI, AI development, LangChain/LangGraph-style workflows, tool/API integration, prompting, and responsible AI use. I use these skills pragmatically: not as a replacement for good data work, but as an additional layer when AI can improve extraction, review, search, automation, or decision support. Relevant proof: • 38 Upwork jobs and 2,300+ hours delivered • Long-running automation, scraping, R/Shiny, ETL, reporting, and data workflow projects • IBM AI Engineering Professional Certificate • IBM Generative AI Engineering Professional Certificate • IBM RAG and Agentic AI Professional Certificate • IBM Deep Learning with PyTorch, Keras and Tensorflow Professional Certificate • IBM AI Developer Professional Certificate • Google AI Professional Certificate • Strong Python, R, SQL, AWS, Docker, machine learning, and data engineering background • Public portfolio examples in PDF/OCR extraction, DOCX standardization, review packets, validation workflows, and structured exports • Consistent focus on QA, reproducibility, documentation, and maintainable handover What I can help with: • Data cleaning, ETL, and workflow automation • Exploratory data analysis and statistical reporting • Machine learning and predictive modeling • R/Python analysis pipelines • Survey, research, and business analytics workflows • Automated reports in Excel, PDF, HTML, Quarto, R Markdown, or dashboards • Web scraping and structured data extraction • PDF/OCR and document-to-table workflows • AI-assisted document processing • RAG and LLM-assisted workflow automation • Agentic AI prototypes and multi-step AI workflows • Geospatial and research data pipelines, when relevant For data science projects, I focus on more than producing a model or chart. I care about data quality, assumptions, validation, reproducibility, documentation, and whether the final output is useful for decision-making. For automation and AI-assisted workflows, I do not treat AI as a black box. I design workflows with structured outputs, validation checks, confidence flags, rejected-row handling, source evidence, review packets, logs, and maintainable handover. Clients usually hire me when they need a reliable data scientist who can handle messy real-world inputs, build clean analytical workflows, automate repetitive processes, and deliver outputs that are practical, documented, and ready to use.

I am an English business teacher living in Spain with nine years of experience. Outside of teaching, I work as a trained proofreader, book reviewer and writer. Services: Writing (reviews, blogs, books and general content) Proofreading Academic content creation Book reviews Beta reading Product/service feedback Lead generation I am reliable, hard-working and passionate about every project. I will maintain good communication throughout the process and ensure that the document or task is completed to the highest standard within the deadline.

Need support with a research article, review article, systematic review, case report, or journal submission? I help researchers, academics, clinicians, postgraduate scholars, and organizations develop clear, well-structured, and publication-focused academic documents. My services include: • Research article writing and editing • Narrative and scoping review articles • Systematic review and PRISMA support • Case report writing and formatting • Literature searches and evidence synthesis • Manuscript editing, proofreading, and rewriting • Journal selection and submission assistance • Journal-specific formatting and reference management • Cover letters, abstracts, highlights, and graphical content • Reviewer-response letters and manuscript revisions I can support the complete publication process—from organizing your research material and improving the manuscript to preparing submission documents and addressing reviewer comments. My work focuses on improving academic tone, clarity, structure, logical flow, scientific accuracy, citations, references, tables, figures, and journal compliance while preserving the author’s intended meaning. I support projects across healthcare, life sciences, psychology, social sciences, education, business research, and related academic fields. My research training also gives me a strong understanding of research methods, evidence evaluation, data interpretation, and publication standards. You will receive clear deliverables, reliable communication, confidential document handling, and careful attention to detail. I work from your data, notes, protocol, draft, or source materials and never fabricate data or references. Send me your topic, document, word count, deadline, and target journal, and I will recommend the most suitable approach for your project.

I am a professional journalist and photographer with experience in voice contibution and data annotation, proofreading, interviewing, data training, writing creative content but also news and any kind of articles. I enjoy Photojournalism a lot, but also teaching and translating Spanish and English. I have worked as a Community Manager assistant and I know how SEO works.