You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
José Manuel S.JM

José Manuel S.

Data Expert

€360/day
Madrid, ES
8-15 years

Average response time: 1 hour

About José Manuel

I'm a data specialist helping businesses turn raw information into clear, actionable insights.

I have experience designing and optimizing end-to-end data workflows—from collection, cleaning, and structuring, to analysis and visualization. I work with both relational databases (like MySQL and SQL Server) and non-relational ones, and I’ve built efficient ETL processes using tools such as Python, Azure Data Factory, and others depending on the project's needs.

I automate reporting, build custom dashboards, and develop analysis models that help clients focus on what truly matters. I’m comfortable working with tools like Power BI, Excel, Google Sheets, or whichever solution best delivers the value of the data in a straightforward, accessible way.

I also automate business processes using tools like Power Automate, scripting, and third-party integrations—helping teams save time, reduce manual errors, and ensure data flows seamlessly between systems.

I’ve collaborated with technical teams to refine data architecture and also worked closely with non-technical stakeholders, helping them make decisions based on clear, visual, and up-to-date information. My approach is practical, adaptable, and results-driven.

In addition, I build complete e-commerce stores using Shopify—from setting up infrastructure, product catalogs, and payment systems to customizing the user experience. This allows me to deliver full-stack digital solutions that combine data, automation, and commerce in one streamlined strategy.

If you're looking for someone who doesn’t just work with data but transforms it into useful and impactful solutions, I’d be happy to work with you.
  • Spanish

    Native or bilingual

  • Portuguese

    Basic

  • French

    Basic

  • English

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • Cefetra Iberica SL ´
    Data &ITAnalyst
    September 2022 - Today (3 years and 9 months)
    Madrid, Spain
    • Managed and led of the IT and Data department, with two employees under my supervision. In charge of efficiently distributing tasks, strategically prioritizing projects, and monitoring their execution to ensure organizational goals are met.
    • Led the development of new Power BI dashboards and reports, including trading position dashboards for agrocommodities and financial risk management dashboards. Improved data accuracy by 25% and reduced refresh times from one day to 30 minutes by automating data collection and analysis processes.
    • Led the migration of on-premise databases to Azure (MySQL, DataFactory, Databricks), optimizing queries, restructuring objects, and automating ETL processes. Improved data processing efficiency by 40%, increased data volume and frequency, and reduced incidents and manual intervention.
    • Supervised continuous ERP improvement through business analysis and technological enhancements, overseeing the implementation of 23 minor functionality improvements and 5 major upgrades.
    • Contributed to international projects across five countries, focusing on cash flow forecasting, customer segmentation with machine learning, database standardization, and carbon emissions accounting.
  • Barrabés
    Data Specialist
    February 2021 - August 2022 (1 year and 6 months)
    Zaragoza, Spain
    • Led the migration of large datasets from SQL Server to Google BigQuery for a retail leader, improving data processing speed by 65% and enhancing scalability for business intelligence.
    • Implemented machine learning algorithms on AWS, boosting sales forecast accuracy by 35%, optimizing inventory management, and improving operational efficiency.
    • Designed a .NET solution to automate ETL processes and AWS algorithms, streamlining data integration and reducing manual processing time.
  • Atlas Proyectos Informaticos
    WebDeveloper
    February 2019 - January 2021 (1 year and 11 months)
    Zaragoza, Spain
    • Led the development and launch of a B2B .NET web system for a leading animal feed manufacturer, optimizing processes, improving document management, cutting customer service time by 50%, and reducing errors.
    • Coordinated and contributed to web and mobile applications, financial reporting (Power BI), and ETL processes integrating on-premise systems with e-commerce platforms like PrestaShop.

Recommendations

Be the first to recommend José Manuel

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

  • Master of Physics
    University of Zaragoza
    Master's inPhysics of the
  • Bachelor of Science in Physics
    University Of
    Bachelor ofPhysics

Certifications

Skill set

Categories