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Miguel Ángel Cantarero Ortega

Miguel Ángel Cantarero Ortega

Backend Developer

€320/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Miguel Ángel

I am a backend developer specializing in Java and Spring Boot, focused on delivering reliable, efficient, and well-structured solutions.
My approach emphasizes clear communication, technical quality, and collaborative problem-solving. I have experience in designing microservices architectures, optimizing code, and implementing best practices aligned with SOLID principles.
I work with Java 21 LTS, Docker-based deployments, and databases such as PostgreSQL and Oracle. I can work with both microservices and monolithic architectures, and offer guidance on scalable and future-proof backend designs.


  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Minsait
    Senior Developer Analyst
    PUBLIC SECTOR
    February 2025 - Today (1 year and 6 months)
    Madrid, Spain
    Senior Backend Developer Analyst.
    Working on projects for social security.
    Specialization in Java Spring boot and on-premise microservices.
    Java Spring boot OpenShift Apache Kafka microservices-architecture
  • Exceltic
    Programmer Analyst
    SOFTWARE PUBLISHING
    December 2020 - January 2025 (4 years and 1 month)
    Madrid, Spain
    My experience primarily at Exceltic has been as a Programmer Analyst.
    I started as an intern Junior and finished my journey with the position of Senior Programmer Analyst.

    Specialized in Backend, although also occasionally developing in Front end.
    The technologies I specialize in are:

    Java and Spring Boot combining hexagonal architecture and TDD as a development methodology.

    Designing and developing microservices architectures hosted in docker images.

    Asynchronous communication of these with Kafka queues.

    Relational databases.

    Angular and typescript.

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Education

  • GS - Cross-Platform Application Development
    Salesianos Domingo Savio
    2021
    GS - Desarrollo de Aplicaciones Multiplataforma
  • GM - Microcomputer Systems and Networks
    Las Naves Salesianos
    2019
    GM - Sistemas Microinformáticos y Redes

Skill set

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