I'm a full-stack developer, data scientist, and NLP engineer passionate about building digital tools that connect language, culture, and technology. I specialize in end-to-end solutions for text analysis and research infrastructures, combining Python (Pandas, Stanza, Transformers, PyTorch), JavaScript (Node.js, D3.js, Vanilla JS), and databases (SQL, MongoDB) to build scalable, high-impact platforms for complex linguistic data. I have collaborated with interdisciplinary teams to co-design digital infrastructures and present results at public science events. I am passionate about developing FAIR-compliant web tools for open science with accessible, mobile-friendly frontends and refining NLP models for text classification and content analysis.

Javier de la Rosa

I'm a full-stack developer, data scientist, and NLP engineer passionate about building digital tools that connect language, culture, and technology. I specialize in end-to-end solutions for text analysis and research infrastructures, combining Python (Pandas, Stanza, Transformers, PyTorch), JavaScript (Node.js, D3.js, Vanilla JS), and databases (SQL, MongoDB) to build scalable, high-impact platforms for complex linguistic data. I have collaborated with interdisciplinary teams to co-design digital infrastructures and present results at public science events. I am passionate about developing FAIR-compliant web tools for open science with accessible, mobile-friendly frontends and refining NLP models for text classification and content analysis.

Available to hire

I’m a full-stack developer, data scientist, and NLP engineer passionate about building digital tools that connect language, culture, and technology. I specialize in end-to-end solutions for text analysis and research infrastructures, combining Python (Pandas, Stanza, Transformers, PyTorch), JavaScript (Node.js, D3.js, Vanilla JS), and databases (SQL, MongoDB) to build scalable, high-impact platforms for complex linguistic data.

I have collaborated with interdisciplinary teams to co-design digital infrastructures and present results at public science events. I am passionate about developing FAIR-compliant web tools for open science with accessible, mobile-friendly frontends and refining NLP models for text classification and content analysis.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

Spanish; Castilian
Fluent
English
Fluent
German
Beginner

Work Experience

Assistant Technician at Digital Humanities Laboratory (ILC, CCHS-CSIC)
February 1, 2025 - Present
Built two full-stack modules for La Caprichosa, a 19th-century literary corpus, combining Node.js APIs, SQL/MongoDB, and dynamic D3.js visualizations. Designed NLP pipelines in Python (Stanza, NLTK, Regex) to extract and structure metadata from historical editorial titles. Modeled relational databases from scratch, implementing complex SQL joins and metadata relationships. Trained ULMFit-based models (fast.ai) and fine-tuned Transformers (Hugging Face, PyTorch) for text classification and content analysis. Developed FAIR-compliant web tools for open science with accessible, mobile-friendly frontends (HTML, CSS, Vanilla JS, Bootstrap). Collaborated with interdisciplinary teams to co-design digital infrastructures and present results at public science events.
Web Developer Internship at JEPA Boutique, Madrid
December 1, 2024 - August 26, 2025
Developed and maintained data-driven web applications using JavaScript, PHP, and SQL. Implemented database optimization strategies for better performance and retrieval efficiency.
Studio Management and Yoga Teacher at Hale.Now, Zendo Management GmbH, Every DamnDay Yoga, Berlin
August 1, 2024 - August 26, 2025
Led yoga classes and workshops, driving a 30% increase in attendance, while managing studio operations, team coordination, and customer service to ensure seamless experiences.
Producer's Assistant, Choreographer, and Performer at Various Locations (Lake Studios, La Caldera Les Corts, Kunsthaus Kule), Berlin, Barcelona, Madrid
September 1, 2023 - August 26, 2025
Organized and coordinated logistics for performances across multiple cities, collaborating on choreography and executing productions in prestigious venues such as Kunsthaus KuLe and Reina Sofía Museum of Madrid.
Internet Safety Evaluator at TELUS Digital AI Data Solutions, Madrid
September 1, 2020 - August 26, 2025
Performed data labeling and validation to enhance Google AI models. Assisted in analyzing dataset trends to refine NLP model performance. Contributed to improving ranking and content recommendation accuracy.
Customer Service Agent at Sykes Enterprises, Berlin
July 1, 2019 - August 26, 2025
Delivered exceptional customer support with a 95% satisfaction rate, using feedback to optimize services and improve customer loyalty.

Education

Master of Science at Complutense University of Madrid
September 1, 2024 - July 1, 2025
Master of Arts at RO AR (Kunstquartier Bethanien), Berlin
September 1, 2018 - January 31, 2019
Bachelor of Science at Autonomous University of Madrid
September 1, 2013 - July 1, 2018
Bachelor of Arts at Carmen Senra Private School, Madrid
September 1, 2013 - July 1, 2017

Qualifications

Computational Linguistics - Intermediate Course, Udemy
December 1, 2024 - August 26, 2025
NLP and Conversational Assistants (Part I and II), UCM
November 1, 2024 - August 26, 2025
Advanced NLP with Python: NLTK, SpaCy, and Stanza, UCM
November 1, 2024 - August 26, 2025
Generative AI - LLMs, Transformers, ANNs, Prompt Engineering, Midjourney, GPTs, Udemy
November 1, 2024 - August 26, 2025

Industry Experience

Education, Professional Services, Software & Internet, Media & Entertainment, Other

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more