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Jose D.JD

Jose D.

Data Engineer

€100/day
Barcelona, ES
0-2 years

Average response time: 1 hour

About Jose

I help businesses stop guessing and start knowing.

What I do
  • Build automated dashboards that show what's really driving profit
  • Clean, organize, and centralize messy data (duplicate records, spreadsheets, broken tracking)
  • Design data pipelines and reporting systems for decision-making based on facts, not intuition
  • Build machine learning models when they actually add value — not just for show

Background
Former mechanical engineer turned data engineer. I understand how to translate business problems into data solutions. I write clean Python and SQL. I build systems that work reliably.

Why work with me
  • I start by understanding the problem you're having, what you're trying to make, and then build exactly what's needed, nothing more
  • I explain things without jargon — you'll understand your own data
  • I deliver on time, or let you know early if something's off
Ideal projects
  • Revenue/profitability dashboards and automated reporting
  • Data cleaning, database setup, and pipeline automation
  • Machine learning models for forecasting, classification, or optimization
  • Manufacturing/operations analytics, internal business analysis (sales, ops, finance)
  • I focus on data infrastructure first — because models are only as good as the data behind them.
I won't promise to "10x your revenue with AI." But I will build solutions that work, save time, and help you make smarter decisions.

Let's talk if your data is costing you time or money.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • German

    Fluent

Remote only
Primarily works remotely

Experience

  • AILY LABS
    Data Practitioner
    September 2025 - Today (10 months)
    • Developed and maintained APIs and endpoints to enable seamless data access and integration.
    • Designed and implemented reusable tables using DBT and SQL to standardize data workflows and improve efficiency.
    • Managed data ingestion processes, ensuring reliable and scalable data pipelines.
    DBT PostgreSQL Python API GitHub
  • Smartme Analytics
    Data Scientist
    February 2025 - August 2025 (6 months)
    Madrid, Spain
    • Process survey data in R to generate KPIs and insights used by internal teams and clients
    • Modularize and optimize Shiny dashboards, enabling internationalization and improving maintainability of code
    • Execute SQL queries to extract data for internal requests and ad-hoc analyses
    • Contribute to the improvement of impact generation code, enhancing automation and data accuracy
    Microsoft Excel GitHub R SQL
  • iSi Group
    Working Student as Product Engineer
    June 2023 - June 2024 (1 year)
    Berlin, Germany
    • Assembled and tested 200+ airbag prototypes, meeting safety standards set by the German Federal Institute for Materials Research and Testing (BAM).
    • Contributed to optimizing the interface between gas generator and airbag nozzle in a critical product development project.
    • Collaborated with cross-functional engineering teams on experiment design, prototype preparation, and testing.
    • Analyzed test results and documented findings using Excel to support data driven design decisions.
    • Insights from the experiments contributed to future airbag designs adopted by leading automotive brands.
    Microsoft Excel Microsoft Office Project Management

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Education

  • Bachelor's degree
    Technische Universität Berlin
    2024
    Bachelor's degree
  • Master's degree Big Data
    Universidad Complutense de Madrid (UCM)
    2024
    Master's degree Big Data

Skill set

Categories