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Hire the best JSON Developers in Barcelona, ES

Check out JSON 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 JSON
    Electronic Data Interchange
    Database Design
    Data Processing
    pandas
    Database Modeling
    Scripts & Utilities
    MySQL
    XSD
    SQL
    ETL
    XML
    Scripting
    Python
    Data Extraction
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    PROFESSIONAL PROFILE CONTACT JUNIOR FULLSTACK DEVELOPER Phone +34693294162
    vsuc_fltilesrefresh_TrophyIcon JSON
    Relational Database
    PHP
    GitHub
    AJAX
    Salesforce
    Figma
    Python
    Java
    Node.js
    JavaScript
    Bootstrap
    CSS 3
    HTML
    C#
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    I’m a dedicated frontend developer with extensive experience in creating dynamic and responsive web applications. My expertise is centered around React JS, where I thrive in building engaging user interfaces that deliver exceptional user experiences. What I Do Best: •React JS Development: Skilled in crafting scalable and maintainable applications using React. Proficient in key features such as components, hooks, state management, and context API. I ensure that every application I build is optimized for performance and responsiveness. • Frontend Technologies: Experienced in HTML5, CSS3, and JavaScript ES6+, enabling me to create visually appealing and interactive web pages. My work involves leveraging modern CSS techniques and JavaScript functionalities to enhance user experiences. • API Documentation: Adept at creating and maintaining detailed API documentation. My focus is on ensuring clear, accessible documentation that facilitates smooth communication between frontend and backend teams, and helps external developers understand and integrate with the APIs effectively. • Project Management: Proven track record of managing projects from inception to completion. I collaborate closely with designers, backend developers, and stakeholders to ensure that project goals are met on time and to specification. Regular updates and transparent communication are key to my approach. • Problem Solving: Passionate about identifying and resolving frontend issues. I use debugging tools and performance optimization techniques to tackle challenges and enhance application stability and speed. • Continuous Learning: Committed to staying updated with the latest industry trends and technologies. I actively seek opportunities for professional growth and apply new knowledge to improve my work and contribute to innovative solutions. My Approach: • User-Centric Design: I prioritize user experience in all my projects. By understanding user needs and behavior, I build interfaces that are intuitive and engaging. • Collaboration: Effective teamwork is central to successful project outcomes. I value clear communication and collaboration with all team members to ensure that everyone is aligned and working towards common goals. • Quality and Excellence: I’m dedicated to delivering high-quality code and adhering to best practices. Code reviews, thorough testing, and attention to detail are integral parts of my development process. • Client Relations: Building strong relationships with clients is important to me. I listen to their needs, provide regular updates, and ensure that their vision is realized in the final product. I’m passionate about leveraging my skills to create innovative and impactful web solutions. If you’re looking for a frontend developer who combines technical expertise with a user-focused approach, let’s connect and explore how I can contribute to your next project.
    vsuc_fltilesrefresh_TrophyIcon JSON
    CSS
    TypeScript
    Jest
    OpenAPI
    Web Application Development
    Web Application
    API Integration
    API Documentation
    HTML
    JavaScript
    Bootstrap
    React Native
    React
    Web Development
  • $15 hourly

    • 0.0/5
    • (0 jobs)
    Multidisciplinar engineer who has developed his career in technical sales engineering, project management and civil engineering.
    vsuc_fltilesrefresh_TrophyIcon JSON
    Presentations
    Fortran
    Visual Basic for Applications
    Microsoft Excel
    Office 365
    Sales
    Python
    CAD
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