Freelance Data Engineers in Spain

Freelance Data Engineers in SpainFreelance Data Engineers in Spain

Projects People

HAMZA EL QADIRI

Data Engineering & AI,

New to Contra

Data Engineering & AI,

Cover image for The AI-Powered Modern Data Platform

The AI-Powered Modern Data Platform for E-Commerce is a cutting-edge solution that bridges the gap between complex data infrastructure and business users. This project combines a robust modern data stack with advanced AI capabilities, enabling natural language analytics over an enterprise-grade E-Commerce Data Warehouse. By leveraging Artificial Intelligence, Large Language Models, and Retrieval-Augmented Generation (RAG), this platform empowers business users to ask questions in natural language and receive actionable insights.

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Cover image for Azure Data Pipeline for E-commerce

Azure Data Pipeline for E-commerce Analytics : E-commerce teams drown in raw sales CSVs and scattered APIs—while revenue leaks hide in untracked product returns and regional stock-outs. I built a cloud-native, end-to-end analytics pipeline that turns chaotic transactional data into sub-minute Power BI insights, letting merchandisers act on trends before they become costly mistakes.

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Cover image for Spotify Loader Benchmark
The Spotify Loader Benchmark is

Spotify Loader Benchmark The Spotify Loader Benchmark is a comprehensive framework for evaluating different data loading strategies on the Spotify dataset, providing insights into the performance of various loading mechanisms. By comparing sequential, vectorized, multithreaded, raw SQL, Celery-based, and Flink-based loaders, this project helps developers optimize their data loading processes. With its robust architecture and flexible design, the Spotify Loader Benchmark is an essential tool for anyone working with large datasets.

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Cover image for Cyber Threat Intelligence Platform, An

Cyber Threat Intelligence Platform, An end-to-end, high-performance, containerized cyber intrusion detection and telemetry processing platform.

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Data Engineer(4)

Miguel J. Garrido

Esplugues de Llobregat, Spain

AI & Data Solutions with Perfectionist Passion

AI & Data Solutions with Perfectionist Passion

Cover image for Digit Recognition with ML

Digit Recognition with ML

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Cover image for LANGUAGE TRANSLATION USING SEQ2SEQ LEARNING

LANGUAGE TRANSLATION USING SEQ2SEQ LEARNING

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6

Cover image for Movie Retrieval System using NLP Models

Movie Retrieval System using NLP Models

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Data Engineer(3)

Kai Relaunch Dept

AI Automation & Launch Recovery Specialist

New to Contra

AI Automation & Launch Recovery Specialist

Cover image for SchemaShield — Evidence-First Schema Change Preflight

SchemaShield — Evidence-First Schema Change Preflight

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Cover image for A schema rename passed every unit test. It still broke a rev...

A schema rename passed every unit test. It still broke a revenue dashboard. The query changed from order_total to gross_amount; the schema was valid, but downstream models still expected the old field. The fix isn't another linter. Before merge, ask four questions: Which assets depend on this field? Is the change additive, rename, type change, or removal? Can we generate compatibility SQL and dbt YAML before touching production? Is there a decision receipt reviewers can reproduce? I built a bounded public replay of that workflow. Start with the CRITICAL case: it blocks a lossy decimal-to-integer change when an ML consumer sits downstream, then exposes the lineage, affected queries, compatibility artifacts, and deterministic run ID. Demo: https://schema-shield.vercel.app (https://schema-shield.vercel.app)Source/evidence: https://github.com/ceodaradigu/schema-shield What schema operation should the next fixture cover? AI-assisted analysis, reviewed before publication by RELAUNCH DEPT.

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Cover image for Proofline Keeper — Transaction Firewall for AI Agents

Proofline Keeper — Transaction Firewall for AI Agents

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Cover image for Proofline — Evidence Gate for AI Agents

Proofline — Evidence Gate for AI Agents

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Data Engineer(1)

A Coruña, Spain

Lead Data Analyst. Data Engineering and Visualization Expert

Lead Data Analyst. Data Engineering and Visualization Expert

Cover image for Web Scrapping and Alert System With AWS and Airflow

Web Scrapping and Alert System With AWS and Airflow

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Cover image for Invoice Parsing System using Google Document AI and BigQuery

Invoice Parsing System using Google Document AI and BigQuery

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Cover image for Real Estate Investing Dashboard

Real Estate Investing Dashboard

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Cover image for Google Sheets Report Automation

Google Sheets Report Automation

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Data Engineer(2)

Software Engineer: Building Awesome Webs Apps & Products

Software Engineer: Building Awesome Webs Apps & Products

Cover image for Lead Engineer, eth-roulette.com

Lead Engineer, eth-roulette.com

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Cover image for CTO, OpenBroker.com

CTO, OpenBroker.com

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Cover image for CTO, Subletny.com

CTO, Subletny.com

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Cover image for Product Manager, Full-stack Engineer, CleanHero

Product Manager, Full-stack Engineer, CleanHero

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12

Data Engineer(1)

Will Danckwerts

Badalona, Spain

Cloud infrastructure, data engineering and Python

Cloud infrastructure, data engineering and Python

Cover image for Data Engineering for a Sustainability-Focused Startup

Data Engineering for a Sustainability-Focused Startup

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5

Cover image for Virtual Desktop Coding Environment in AWS/Azure

Virtual Desktop Coding Environment in AWS/Azure

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Cover image for LLM-Powered Chat Application Deployment on AWS

LLM-Powered Chat Application Deployment on AWS

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5

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Data Engineer(1)

proBarcelona, Spain

Analista de Datos | Insights, modelos | optimización | ML

Analista de Datos | Insights, modelos | optimización | ML

Cover image for Multi-Horizon Demand Forecasting
Designed and implemented

Multi-Horizon Demand Forecasting Designed and implemented a multi-horizon demand forecasting system for an e-commerce business to improve inventory planning and operational decision-making. The solution generated forecasts across multiple planning horizons while automating forecasting workflows and scenario analysis. This enabled business teams to make more informed purchasing and inventory decisions while reducing manual forecasting efforts.

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Cover image for Credit Risk Modeling
Developed a machine

Credit Risk Modeling Developed a machine learning solution for consumer credit risk assessment, helping improve lending decisions through predictive analytics. The project included feature engineering, model evaluation and probability calibration to deliver reliable risk predictions while supporting regulatory and business requirements. The final solution provided a scalable analytical framework for consistent and data-driven credit decision making.

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Cover image for Built a centralized investment analytics

Built a centralized investment analytics and business intelligence platform to automate KPI tracking, operational reporting and executive dashboards. The solution integrated multiple data sources into a single decision support system, eliminating manual reporting while providing daily insights into investments, clients, providers and overall business performance. The platform included automated data pipelines, KPI monitoring and executive dashboards designed to support faster and more informed business decisions.

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Cover image for Designed an AI-powered decision support

Designed an AI-powered decision support system combining quantitative models, machine learning and deep learning techniques to analyze financial markets. The platform automated data collection, strategy evaluation and backtesting, providing a scalable framework for continuous strategy development. The project demonstrated how advanced analytics can support systematic and data-driven investment decisions.:

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Data Engineer(1)

Valencia, Spain

Lead 3D Artist / CGI Art Director

New to Contra

Lead 3D Artist / CGI Art Director

Cover image for SHOWREEL 2023

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Cover image for GoGorilla - 3D Web Assets

GoGorilla - 3D Web Assets

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Cover image for GoGorilla.com - City System

GoGorilla.com - City System

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Cover image for Zamil AC - Air Purifiers

Zamil AC - Air Purifiers

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Data Engineer(2)