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Abel Vergaray BarrenaAV

Abel Vergaray Barrena

Senior Java Backend | Spring Boot | Microservices

€195/day
Trujillo, PE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Abel

Senior Java Backend Engineer with +15 years of experience in developing critical and scalable systems. Specialist in Spring Boot 3, microservices, Kafka, Redis, Docker, and Kubernetes. I have participated in the development of institutional platforms for the Ministry of Justice of Spain (SERECI - electronic certificates) and the Andalusian Health Service (DIRAYA - electronic health record), applying best practices in security, performance, and agile methodologies (Scrum/Kanban).
Available 100% remote from Peru (UTC-5, excellent overlap with Spain). Focus on code quality, scalability, and collaboration with multidisciplinary teams.
Looking for enterprise backend projects, legacy migrations, or distributed architectures. Let's talk about how I can contribute to your team!
  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • IDENTITY DEL PERÚ
    Software Engineer
    September 2015 - February 2020 (4 years and 5 months)
    Lima, Peru
    Key Clients:National Port Authority of Peru, Gloria Group, Komatsu-Mitsui, Antapaccay Mine, etc.

    • Responsible for digital signature integration and interoperability with private and governmental systems.
    • Technical supervision and development of Java backend solutions for integration with enterprise systems.
    *Technologies:Java 8, Spring Boot, PostgreSQL, REST APIs, HTML, Jira, Azure DevOps, Linux.
    Java 8 Spring boot PostgreSQL REST API Microsoft Azure
  • NTT DATA Perú
    Technical Expert Specialist
    PUBLIC SECTOR
    February 2020 - Today (6 years and 6 months)
    Trujillo, Peru
    Key Clients:Ministry of Justice of Spain (MJUSTICIA), Andalusian Health Service (DIRAYA-SAS)

    • Technical leadership in the development of institutional platforms based on microservices for public entities: SERECI (electronic certificates), DIRAYA (electronic health record), ARGOS (epidemiological surveillance).
    • Design and development of microservices and REST APIs using Java and Spring Boot, optimizing system performance and scalability.
    • Application of Scrum and Kanban methodologies.
    *Technologies:Java 11–21, Spring Boot 3, Spring Security, JPA, Kafka, Redis, Docker, Kubernetes, Oracle, SQL Server, Jenkins, Git.
    java 11-21 Java Spring Boot Oracle Microservices Apache Kafka
  • Manufacturas San Isidro S.A.C.
    IT Functional Analyst
    LOGISTICS AND SUPPLY CHAIN
    September 2014 - August 2015 (11 months)
    Lima, Peru
    • Analysis and process improvement in ERP modules (HR, Finance, Logistics).
    • Report generation and BPMN modeling.
    *Technologies:System Builder, UniData, SQL Server, Bizagi.
    PostgreSQL Jenkins Bizagi SQL Server

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Education

  • Bachelor in Computer Engineering and Systems
    UPAO
    2009
    Bachiller en Ingeniería de computación y sistemas

Certifications

  • Scrum Fundamentals Certified – (SFC)
    Scrum Study
    2018
    Scrum
  • Six Sigma Yellow Belt Professional (SSYB)
    6Sigma Study
    2019
    Lean six sigma

Skill set

Categories