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Hire Dr. Juan Luis H.

Spain

USD 100 /hr

Data Scientist & R Workflow Engineer | Survey & People Analytics | Automated Reporting | AI Agents

Profile Summary

I deliver end-to-end data products: from raw inputs and ETL to statistical modeling, reproducible reporting, production-grade pipelines, and LLM-based AI agents. My core expertise is building data workflows. I work with both corporate and academic clients, and I’m comfortable translating complex results into clear, actionable narratives. Selected work: - Expert R developer specialized in survey/people-analytics pipelines: ETL, scoring, QC, statistical analysis, and automated reporting (from raw data to client-ready outputs). For nearly 10 years, I’ve collaborated with Dr. Iain Crossing ( https://www.transformism.com/ ) on R-based workflows for survey ETL and reporting systems used in engagement and organizational research contexts. - I also support academic research with end-to-end statistical programming (cleaning, modeling, simulation, figures, and reproducible outputs) for PhD projects and peer‑reviewed publications. In this context, I have collaborated with Dr. Beth Truesdale, PhD ( https://bethtruesdale.org/ ), John Quattrochi, PhD ( https://johnquattrochi.com/ ), Dr. Iain Crossing, Robert Vaillancourt, PhD (https://www.millersville.edu/esci/facultypages/r-vaillancourt.php), and Ramiro Varela, PhD (https://orcid.org/xxxxxxxxxxxxxxxxxxx) - I have strong experience with open, cloud-native data engineering and geospatial standards. For example, in HF‑EOLUS ( https://doi.org/10.5281/zenodo.17721805 ), I contributed to an open-source pipeline that publishes high-resolution coastal wind products as STAC/GeoParquet datasets and toolkits.

Subject Matter Expertise

• ★ Big Data Analytics
• ★ Applied Statistics
• ☆ Data Analysis
• ☆ Predictive Modeling & Analytics
• ☆ Data Processing
• ☆ Data Exploration
• ☆ Cluster Analysis
• ☆ Data Visualization
• ☆ Data Collection
• ☆ Data Management
• ☆ Data Manipulation
• ☆ Machine Learning
• ☆ Data Cleaning
• ☆ Neural Networks
• ☆ Artificial Intelligence
• ☆ Statistics
• ☆ Social Statistics
• ☆ Regression Analysis
• ☆ Multivariate Analysis
• ☆ Nonlinear Regression
• ☆ Correlation Analysis
• ☆ Spatial Statistics
• ☆ Oceanography & Marine Science

Services

• Writing
• Research
• Consulting
• Data & AI

Writing Technical Writing

Research Scientific and Technical Research

Consulting Scientific and Technical Consulting

Data & AI Predictive Modeling, Statistical Analysis, Data Visualization, Big Data Analytics, Data Cleaning, Data Processing

Work Experience

Self Employed

January 2013 - Present

Research Assitant

University of Vigo

August 2008 - January 2013

Education

Mathematics

UNED

September 2017 - Present

Ph.D. in Physical Oceanography

University of Vigo

June 2000 - June 2008

Marine sciences

University of Cádiz

September 1995 - June 1999

Certifications

• Expert in Advanced Methods in Applied Statistics

  UNED

  https://formacionpermanente.fundacion.uned.es/ajax/ops.php?espacio=exportacion&clase=Doc&funcion=certificado&var1=30G2+FPp10BVmN5SjbqPt&json=0&op=accion

  October 2021 - Present

• Statistical Analysis of Spatial Data and Shapes

  UNED

  https://formacionpermanente.fundacion.uned.es/ajax/ops.php?espacio=exportacion&clase=Doc&funcion=certificado&var1=2wp4+FPygsw3sQJQ7Wx0t&json=0&op=accion

  May 2021 - Present

Publications

DATA MANAGEMENT PLAN

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS Project GeoParquet & STAC Specifications . Zenodo. Zenodo

REPORT

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS Project Results Overview . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS. Task 2. HF-Radar Wind Inversion Models and Results for VILA and PRIO Stations . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Pedro Montero, Ramiro Varela Benvenuto(2025). Project HF-EOLUS. Task 2. Obtaining Radial Metrics from INTECMAR's VILA and PRIO Stations' Spectra . Zenodo. Zenodo

DATA SET

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS. Task 5. Wind Resource Estimation Results . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS. Task 3. MeteoGalicia Wind Interpolation Outputs . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). Project HF-EOLUS. Task 2. Aggregated SAR and HF-Radar Radial Metrics for Wind-Inversion Model Training . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). Project HF-EOLUS. Task 2. VILA & PRIO Radial Metrics GeoParquet Dataset . Zenodo

Project HF‑EOLUS. Task 1. Puertos del Estado Vilano Buoy Data Bundle (GeoParquet + STAC) @misc{https://doi.org/10.5281/zenodo.17098037, doi = {10.5281/ZENODO.17098037}, url = {https://zenodo.org/doi/10.5281/zenodo.17098037}, author = {Herrera Cortijo, Juan Luis and Fernández-Baladrón, Adrián and Rosón, Gabriel and Gil Coto, Miguel and Dubert, Jesús and Varela Benvenuto, Ramiro}, title = {Project HF‑EOLUS. Task 1. Puertos del Estado Vilano Buoy Data Bundle (GeoParquet + STAC)}, publisher = {Zenodo}, year = {2025}, copyright = {GNU General Public License v3.0 or later}} .

Project HF‑EOLUS. Task 1. Sentinel‑1 SAR Derived Data Bundle (GeoParquet + STAC) @misc{https://doi.org/10.5281/zenodo.17007304, doi = {10.5281/ZENODO.17007304}, url = {https://zenodo.org/doi/10.5281/zenodo.17007304}, author = {Herrera Cortijo, Juan Luis and Fernández-Baladrón, Adrián and Rosón, Gabriel and Gil Coto, Miguel and Dubert, Jesús and Varela Benvenuto, Ramiro}, title = {Project HF‑EOLUS. Task 1. Sentinel‑1 SAR Derived Data Bundle (GeoParquet + STAC)}, publisher = {Zenodo}, year = {2025}, copyright = {GNU General Public License v3.0 or later}} .

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Pedro Montero, Ramiro Varela Benvenuto(2025). PRIO LLUV Radial Metrics Dataset Computed Using SeaSondeR R Package . Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Pedro Montero, Ramiro Varela Benvenuto(2025). VILA LLUV Radial Metrics Dataset Computed Using SeaSondeR R Package . Zenodo

SOFTWARE

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF EOLUS Wind Resource Toolkit (0.2.0) . Zenodo. Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). GOFUVI/hf-eolus-interpolation-toolkit: HF-EOLUS Wind Interpolation Toolkit for MeteoGalicia models output . Zenodo. Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS HF-Radar Wind Inversion Toolkit for Artificial Neural Networks Training and Inference (v0.1.1) . Zenodo. Zenodo

HF‑EOLUS Geospatial Processing Tools (v0.1.0) @misc{https://doi.org/10.5281/zenodo.17104923, doi = {10.5281/ZENODO.17104923}, url = {https://zenodo.org/doi/10.5281/zenodo.17104923}, author = {Herrera Cortijo, Juan Luis and Fernández-Baladrón, Adrián and Rosón, Gabriel and Gil Coto, Miguel and Dubert, Jesús and Varela Benvenuto, Ramiro}, title = {HF‑EOLUS Geospatial Processing Tools (v0.1.0)}, publisher = {Zenodo}, year = {2025}, copyright = {GNU General Public License v3.0 only}} . Zenodo.

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). HF-EOLUS Sentinel-1 SAR Ingestion Pipeline (GeoParquet + STAC) (v0.1.3) . Zenodo. Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). Project HF-EOLUS. Task 2. HF-Radar Radial Metrics Ingestion Pipeline (GeoParquet + STAC) (v0.1.1) . Zenodo. Zenodo

Project HF‑EOLUS. Task 1. Puertos del Estado Buoy Ingestion Pipeline (v0.1.0) @misc{https://doi.org/10.5281/zenodo.17097948, doi = {10.5281/ZENODO.17097948}, url = {https://zenodo.org/doi/10.5281/zenodo.17097948}, author = {Herrera Cortijo, Juan Luis and Fernández-Baladrón, Adrián and Rosón, Gabriel and Gil Coto, Miguel and Dubert, Jesús and Varela Benvenuto, Ramiro}, title = {Project HF‑EOLUS. Task 1. Puertos del Estado Buoy Ingestion Pipeline (v0.1.0)}, publisher = {Zenodo}, year = {2025}, copyright = {GNU General Public License v3.0 only}} . Zenodo.

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). SeaSondeR: Radial Metrics from SeaSonde HF-Radar Data . Zenodo. Zenodo

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Gabriel Rosón, Miguel Gil Coto, Jesús Dubert, Ramiro Varela Benvenuto(2025). Complete Batch Processing of SeaSonde HF-Radar Spectra Files on AWS with SeaSondeR R Package . Zenodo. Zenodo

DISSERTATION THESIS

Juan Luis Herrera Cortijo, Adrián Fernández-Baladrón, Ramiro Varela Benvenuto(2020). Interrelationships between Surface Circulation and Wind in the Ría de Vigo . Zenodo

OTHER

Juan Luis Herrera Cortijo(2020). Response to referee comments . Copernicus {GmbH}

Juan Luis Herrera Cortijo(2020). Response to referee comments . Copernicus {GmbH}

Juan L. Herrera, Jose González, Fiz F. Pérez, Gabriel Rosón, Ramiro A. Varela(2020). First automatic pH measurements in the bottom layer of the Ria de Vigo (NW Spain) . Copernicus {GmbH}

JOURNAL ARTICLE

J.L. Herrera, J. González, R.A. Varela (2019). Measuring a Lagrangian drifter’s slip with an onboard ADCP . MethodsX.

Villacieros-Robineau, N., Herrera, J.L., Castro, C.G., Piedracoba, S., Roson, G.(2013). Hydrodynamic characterization of the bottom boundary layer in a coastal upwelling system (Ría de Vigo, NW Spain) . Continental Shelf Research. 68. p. 67-79.

González, J., Herrera, J.L., Varela, R.A.(2012). A design proposal of real-time monitoring stations: Implementation and performance in contrasting environmental conditions,Propuesta de un diseño de estación de monitorización en tiempo real: Implementación y rendi¬miento en diferentes condiciones ambientales . Scientia Marina. 76. (SUPPL.1). p. 235-248.

Aranguren-Gassis, M., Serret, P., Fernández, E., Herrera, J.L., Domínguez, J.F., Pérez, V., Escanez, J.(2012). Balanced plankton net community metabolism in the oligotrophic North Atlantic subtropical gyre from Lagrangian observations . Deep-Sea Research Part I: Oceanographic Research Papers. 68. p. 116-122.

Aranguren-Gassis, M., Serret, P., Fernández, E., Herrera, J.L., Domínguez, J.F., Pérez, V., Escanez, J.(2011). Corrigendum to "Production and respiration control the marine microbial metabolic balance in the eastern North Atlantic subtropical gyre" [Deep-Sea Research Part I: Oceanographic Research Papers 58 (7) (2011) 768-775] . Deep-Sea Research Part I: Oceanographic Research Papers. 58. (12). p. 1205.

Aranguren-Gassis, M., Serret, P., Fernández, E., Herrera, J.L., Domínguez, J.F., Pérez, V., Escanez, J.(2011). Production and respiration control the marine microbial metabolic balance in the eastern north atlantic subtropical gyre . Deep-Sea Research Part I: Oceanographic Research Papers. 58. (7). p. 768-775.

J.L. Herrera, R.A. Varela, G. Rosón(2008). Spatial variability of the barotropic M2 constituent tidal current over the Rías Baixas Galician shelf (NW Spain) . Journal of Marine Systems. 72. (1-4). p. 189--199. Elsevier {BV}

Herrera, J.L., Varela, R.A., Ros&#243;n, G.(2008). Spatial variability of the barotropic M <inf>2</inf> constituent tidal current over the Rías Baixas Galician shelf (NW Spain) . Journal of Marine Systems. 72. (1-4). p. 189-199.

Herrera, J.L., Ros&#243;n, G., Varela, R.A., Piedracoba, S.(2008). Variability of the western Galician upwelling system (NW Spain) during an intensively sampled annual cycle. An EOF analysis approach . Journal of Marine Systems. 72. (1-4). p. 200-217.

&#193;lvarez-Salgado, X.A., Herrera, J.L., Gago, J., Otero, P., Soriano, J.A., Pola, C.G., Garc&#237;a-Soto, C.(2006). Influence of the oceanographic conditions during spring 2003 on the transport of the Prestige tanker fuel oil to the Galician coast . Marine Pollution Bulletin. 53. (5-7). p. 239-249.

Varela, R.A., Ros&#243;n, G., Herrera, J.L., Torres-L&#243;pez, S., Fern&#225;ndez-Romero, A.(2005). A general view of the hydrographic and dynamical patterns of the Rías Baixas adjacent sea area . Journal of Marine Systems. 54. (1-4 SPEC. ISS.). p. 97-113.

Piedracoba, S., &#193;lvarez-Salgado, X.A., Ros&#243;n, G., Herrera, J.L.(2005). Short-timescale thermohaline variability and residual circulation in the central segment of the coastal upwelling system of the Ría de Vigo (northwest Spain) during four contrasting periods . Journal of Geophysical Research C: Oceans. 110. (3). p. 1-15.

Herrera, J.L., Piedracoba, S., Varela, R.A., Ros&#243;n, G.(2005). Spatial analysis of the wind field on the western coast of Galicia (NW Spain) from in situ measurements . Continental Shelf Research. 25. (14). p. 1728-1748.