You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Xavi RubioXR

Xavi Rubio

Data Science

€150/day
Barcelona, ES
3-7 years

Average response time: 1 hour

About Xavi

I excel in transforming complex data into actionable insights with a strong foundation in quantitative analysis and data science. Over the past four years, I have worked across various sectors, specializing in credit, operational, and research datasets using Python, SQL, SAS, and R. I have developed automated data quality workflows and crafted sophisticated dashboards that empower teams to make risk-informed decisions. My experience includes internships at leading organizations, where I collaborated with cross-functional teams to deliver impactful analytical reporting. If you're seeking a data expert who can turn your data challenges into opportunities for growth, let's connect. I am eager to contribute to your project and help you unlock the full potential of your data.
  • Spanish

    Native or bilingual

  • Catalan

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Banco Sabadell Sant Cugat del
    Data Science Intern
    September 2025 - February 2026 (5 months)
    Cerdanyola del Vallès, CT, Spain
    • - Utilised SAS and SQL to clean, validate, and streamline monthly credit datasets, strengthening data quality workflows and gaining exposure to financial and banking processes.
    • - Built credit metrics and weekly production visualisations to support risk assessment and decision-making.
    SQL Data Visualization Database Management (e.g., SQL, NoSQL) Data integration (ETL, ELT and data warehousing)
  • Orpheus
    Data Scientist
    July 2022 - December 2024 (2 years and 5 months)
    Girona, Spain
    • - Built ETL pipelines and Grafana dashboards (PostgreSQL), turning complex trends into operational KPIs; reduced client call time by 45%.
    • - Delivered 23% cost reduction via ML analytics; processed 300M+ rows and cut retrieval latency by 70% through pipeline/database optimisation.
    SQL Data integration (ETL, ELT and data warehousing) Machine learning Python Django
  • Institut De Recerca De L'Hospital De La Santa Creu i Sant
    Data Science Intern
    June 2024 - November 2024 (5 months)
    Barcelona, Spain
    • - Performed large-scale preprocessing and exploratory data analysis on neurological datasets, improving predictive model accuracy and providing insights adopted by senior researchers.
    Data integration (ETL, ELT and data warehousing) Python R

Recommendations

Be the first to recommend Xavi

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • BSc
    Open University of Catalonia
    2021
    BSc
  • AAS Computer Science
    Escuelas Universitarias Gimbernat
    2021
    AAS Computer Science

Skill set

Categories