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Hire the best ETL Developers in Barcelona, ES

Check out ETL Developers in Barcelona, ES with the skills you need for your next job.
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  • $49 hourly

    • 5.0/5
    • (110 jobs)
    I am an expert software development engineer with 10+ years experience. I can assist with a vast range of software development requirements, from scraping websites to advanced coding and programming using many different languages. My skills: Java (J2SE/J2EE) Python Pandas library JMS (ActiveMQ) JasperReports (IReport) Linux SQL (JDBC, Hibernate ORM, JPA ORM, Sequel ORM) Database design, implementation and tuning (MySQL / PostgreSQL) CSV / XML / XSD / DTD / JSON (DOM, JAXB, STAX, Jackson, Gson) / Avro / BCP Cryptographic signature developments (X509, PKI, XML...) Script processing of large XML and JSON files +10gb CSV and Excel (XLSX) data conversions and transformations API consumption XML experience: * SEC.gov form4 XML insider trading * UPSTO.gov patent XML * PubMed XML * SEDD XML * UBL XML * E-factura XML (Spain) * SII (Suministro Información IVA) * SAFT XML (Portugal) * EDI to CSV/JSON/XML conversion Tomcat / Glassfish ETL / Batch processes (CSV, Excel, XML, JSON) Regular expressions (regex) Data scraping / mining Development of Web services and API's ( SOAP / REST / XML-RPC ) Google Refine Google API client (Drive, Gmail..) I provide complete end-to-end management services for all types of businesses, from startup entrepreneurs to major global corporations. I am extremely hard working and thorough in everything that I do - some would even call me a perfectionist. I am not only skilled in problem-solving but take great enjoyment from it. Please see below my extensive Upwork tests and results: XML Schema: 1st Place XML 1.0: 1st Place JSON: 1st Place MySQL: Top 10% Java: Top 20% Software Testing: Top 10% JDBC 2.1: Top 20% Data Structures: Top 20% I have a wide range of connections within and extending out of my industry, so if there is a task out of my skillset that needs completing, I can still get this done for you. Great communication with my clients is incredibly important to me. I endeavor to complete all tasks on time, to the absolute highest of standards. Don’t hesitate to get in touch to discuss your requirements or simply ask a question.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Electronic Data Interchange
    Database Design
    Data Processing
    pandas
    Database Modeling
    Scripts & Utilities
    MySQL
    XSD
    SQL
    XML
    JSON
    Scripting
    Python
    Data Extraction
  • $40 hourly

    • 3.4/5
    • (1 job)
    PhD Biomedicine. Scientific writing Scientific illustration MATLAB ImageJ/Fiji Cellpose GraphPad Prism
    vsuc_fltilesrefresh_TrophyIcon ETL
    Cellular Biology
    Biotechnology
    Biological Illustration
    Image Annotation
    Image Analysis
    Data Extraction
  • $62 hourly

    • 0.0/5
    • (0 jobs)
    I'm a Data Scientist/Engineer with experience in setting up and streamlining ETL pipelines and building digital analytics products.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Machine Learning
    Artificial Intelligence
    Data Extraction
  • $48 hourly

    • 0.0/5
    • (0 jobs)
    I am a Data & Analytics professional driven by a deep passion for this field that has inspired me for years. Over the course of my career, I have worked across diverse industries and major clients, trying to improve my skills continuously and staying up to date with the latest trends and innovations. With expertise in technologies like Python, SQL, and Power BI, I consider myself on being highly methodical and detail-oriented, ensuring every project I undertake delivers impactful solutions and transforms data into actionable insights.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Analytical Presentation
    Microsoft SQL Server
    Databricks Platform
    Analytics
    ETL Pipeline
    MySQL
    Snowflake
    Web Scraping
    Data Mining
    Microsoft Power BI
    SQL
    Python
    Data Analysis
    Data Extraction
  • $150 hourly

    • 0.0/5
    • (0 jobs)
    Peruvian Economist interested and experienced in Econometric Analysis, Machine Learning, Credit risk (IFRS9 and IRB) and Market Risk. Currently Data Science methodology master student at Barcelona Graduate School Economics.Proficient in handling large data sets for modeling and forecasting. Looking to leverage my quantitative and data-modeling skills to design creative solutions for business and social challenges. Passionate about quantitative risk management, focus on credit and market risk.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Analytical Presentation
    Data Extraction
  • $55 hourly

    • 0.0/5
    • (0 jobs)
    I am a versatile developer, I have been programming for 7 years. Currently specialized in blockchain and AI, but I am open to all types of technologies I usually develop in python and Solidity for blockchain projects. But I have skills in JS and Rust. I also master everything that is AWS architecture, and on-premise services for AI development.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Artificial Intelligence
    Python
    Architectural Design
    Blockchain Development
    Blockchain Architecture
    Blockchain
    Cybersecurity Tool
    Machine Learning Model
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    Experienced Industrial Engineer with a Master’s degree and expertise in supply chain optimization. Skilled in Python and advanced Excel, I bring data-driven solutions to streamline processes, enhance productivity, and support business goals. My background includes two years in supply chain roles, where I developed automation tools and data analytics dashboards to improve efficiency. Currently exploring freelance opportunities in data analysis, Python programming, and Excel automation to help businesses simplify their workflows and achieve greater operational success. · Python for data analysis. · Microsoft excel for custom dashboards. · Fast and regular communication with my clients.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Hypothesis Testing
    Microsoft Excel
    Machine Learning
    Python
    ETL Pipeline
    Information Analysis
    Data Analysis
    Analytical Presentation
    Alpha Testing
  • $20 hourly

    • 0.0/5
    • (0 jobs)
    ABOUT ME: I am on the road to improving my skills, acquiring knowledge in what I consider to be the three big areas: * Data Visualization - good visualization and "Story Telling" facilitates understanding and provides more effective analysis. * Analytical skills - knowing and understanding what the data conveys is a priority, being able to understand the business and with the help of the data ask the right questions. * Data Scientist - knowing how to order or get data (structured and unstructured) from other sources is fundamental, using programming to make forecasts and automate processes I'm a team player and also a self -taught learner, also very curious, analytical, detail oriented, problem solver and with a strong strategic vision.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Data Analysis
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    I am a DS graduated with full techniques in DS and digital marketing/ business intelligence, experienced in data analytics, data governance, data mining, ETL, data visualization and NLP. I consider myself a self motivated entrepreneur with independent problem solving skills, details focused ability and transversal talent on every kinds of project. I’m here to gain extra money and experience for my professional development.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Market Research
    Data Visualization
    Analytical Presentation
    Data Mining
    Data Analysis
    Data Extraction
  • $12 hourly

    • 0.0/5
    • (0 jobs)
    Aerospace engineer currently pursuing a Master in Data Analytics. I am looking for a job/task that allows me to gain experience in the AI/Data Analytics field. About me, I have not only been involved in projects in Europe, but also in South America. In these last years I have been working as a consultant at the EU Agency for the Space Programme and now I want to move towards Data and AI.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Aerospace Engineering
    Python
    SQL
    Aerospace
    Data Extraction
    Artificial Intelligence
    Machine Learning
    Machine Learning Model
    Data Analysis
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    As a software engineer with over 15 years of experience, I enjoy working in teams and dealing with business challenges. I have been involved in multiple projects with different roles, so I have a good understanding of the entire software development and delivery cycle. Currently enrolled in a master's degree in Data Science to support and improve my data analysis skills. I think that data-driven decision making should be our mantra.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Analytical Presentation
    Data Analysis
    Software QA
  • $6 hourly

    • 0.0/5
    • (0 jobs)
    Hi there! I’m an economist and data analyst with over 6 years of experience helping companies transform data into valuable insights for strategic decision-making. I’m passionate about using the power of data to solve complex problems and optimize outcomes.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Analytical Presentation
    Artificial Intelligence
    Machine Learning
    Machine Learning Model
    Data Analysis
    ETL Pipeline
    Data Extraction
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Born from the vision of Gabriel Lopez , a data engineering expert with years of experience in transforming data into strategic assets, DMR has established itself as a benchmark in the industry, providing cutting-edge solutions in automation , data analytics and artificial intelligence.
    vsuc_fltilesrefresh_TrophyIcon ETL
    Data Extraction
    Artificial Intelligence
    Data Analysis
    ETL Pipeline
    Machine Learning
    Machine Learning Model
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    I am a freelance data analyst with a strong background in leveraging data to drive business insights and optimize operations. With hands-on experience in tools like Power BI, Excel, and Power Query, I specialize in data visualization, reporting, and process automation. My previous roles in product management and supply chain optimization have honed my ability to work with large datasets, analyze KPIs, and provide actionable recommendations. I’m committed to delivering high-quality, data-driven solutions tailored to each client’s needs. I have experience working with SEAT and the Volkswagen Group in the product management area. I developed a no-code app using Power Apps, integrated with Excel and SharePoint for data management, and automated the agenda creation process using Power Automate and Power Query. This innovation saved 588 hours annually across seven product models. I collaborated with product managers, presented the solution, and led a successful two-week pilot. My work resulted in fully implementing the app, streamlining processes and improving operational efficiency across models. - Knows python , SQL, ETL with power query -Power BI and Qlikview experience -VBA Excel and Power Query and Pivot -Full project management from start to finish
    vsuc_fltilesrefresh_TrophyIcon ETL
    Microsoft Power Automate
    SQL
    Python
    SAP Manufacturing Execution
    SAP Analysis
    Microsoft PowerApps
    Power Query
    Data Extraction
    Information Analysis
    Data Analysis
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