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Roberto HernandoRH

Roberto Hernando

Fullstack Developer

€250/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Roberto

👨‍💻 Frontend and Backend Developer with over 3 years of experience

I am a developer with a solid background in the frontend and backend world, specializing in JavaScript and experienced in building robust and efficient web applications. My expertise includes:

Frontend
Angular: Experience with versions from 8 to 18, using RxJS, NgRx, and Chart.js to build interactive and dynamic applications.
CSS Frameworks: Proficient in Angular Material and Tailwind CSS for designing attractive and functional user interfaces.
Unit Testing: I implement solid unit tests with Jest to ensure code quality and stability.
Backend
Node.js and Express: Creation of scalable and efficient REST APIs.
Relational Databases: Experience in MySQL and MariaDB, including data validation with Joi and protection against SQL injections with XSS.
GraphQL and MongoDB: Development of APIs with Apollo and GraphQL, managing NoSQL databases with MongoDB.
Other Technologies
PHP and Python: Familiarity with these languages for diverse projects.
Java (Spring Boot): Knowledge in enterprise application development.
I am a detail-oriented person passionate about following best practices in software development. I focus not only on product features but also on understanding business dynamics to deliver solutions that truly add value.

I am always ready to face new challenges and collaborate on projects that require a combination of frontend and backend skills. Don't hesitate to contact me if you are looking for a professional committed to quality and excellence!
  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • knowmad mood
    Software Developer
    DIGITAL AND IT
    August 2023 - Today (2 years and 10 months)
    Madrid, Spain
    Frontend developer specializing in Angular in different versions. Development of applications from scratch
  • Exceltic
    Software Developer
    May 2022 - August 2023 (1 year and 3 months)
    Madrid, Spain
    Web development with Angular, SQL. Integration of third-party libraries and development of real-time graphics. Additionally, design and development of graphical interfaces and API development with Python/Node/Java. I have worked on applications using various technologies such as JSP, HTML/CSS/TS, Node.JS, PHP, MySQL or MariaDB. Continuous integration with Jenkins. Knowledge in HTML, SASS, and Rngx. I have worked with Angular 14, 15.1, and 15.2.
  • Exceltic
    Software Developer
    September 2021 - May 2022 (8 months)
    Madrid, Spain
    - Web development with Angular
    - MariaDB database management
    - GIT repository management
    - Integration of third-party libraries in Angular
    - Development of real-time graphics (Angular)
    - Design and development of graphical interfaces
    - API development with Python and MySQL
    - Web application (JSP) with HTML/CSS/JS, SQL, and Java.
    - Web Application (Angular) with HTML/CSS/TS, Node.JS, and MariaDB
    - Web Application (Angular) with HTML/CSS/TS, Node.JS, PHP, and MySQL

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Education

  • Higher Vocational Training, Web Application Development
    IES Clara del Rey
    2022
    Formación Profesional de Grado Superior, Desarrollo de aplicaciones web

Skill set (16)

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