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Eloy Ginestar NadalEG

Eloy Ginestar Nadal

Software Development & Performance Optimization

€350/day
Madrid, ES
8-15 years

Average response time: 1 hour

About Eloy

I help companies build new software products or improve the efficiency and scalability of their existing systems.

With strong experience in Java (Spring Boot), PostgreSQL, and Angular, I can handle projects end-to-end — from backend optimization to frontend integration.
I focus on clean, maintainable code and usually include unit and integration tests to ensure long-term stability and quality.

Having worked in highly regulated environments (HIPAA, GDPR, 21 CFR Part 11), I’m comfortable delivering secure, auditable, and compliant solutions. Whether it’s creating new features, refactoring legacy systems, or improving performance, I adapt quickly to your team and goals.
  • English

    Native or bilingual

  • Spanish

    Native or bilingual

  • Catalan

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Elomar Technologies S.L.
    CTO
    TECH
    January 2022 - Today (4 years and 5 months)
    Madrid, Spain
    • Led the full design and development of DYD eDiary, a regulatory-compliant ePRO platform used in clinical trials (21 CFR Part 11, GDPR, HIPAA).
    • Architected a multi-tenant, scalable backend using Java (Spring Boot) and PostgreSQL, ensuring secure data segregation and auditability.
    • Built a real-time communication system with WebSockets and WebRTC for live researcher–participant interaction.
    • Integrated offline-first data sync and BYOD compatibility for patient usability across devices.
    • Implemented Dockerized deployments on Linux servers (GCP).
    • Focused on performance optimization and high availability under sensitive workloads.
    • Development of client software for web-based diagnostic platform for clinical use, involving secure data exchange, modular architecture, and real-time result visualization.
    Spring boot Docker PostgreSQL Angular WebRTC
  • GMV
    Information Security Consultant / Project Manager / Developer
    CONSULTING AND AUDITS
    January 2017 - December 2021 (4 years and 11 months)
    Tres Cantos, Spain
    • Led a software development team responsible for maintaining and evolving a large Java-based enterprise application used in security-critical environments.
    • Implemented multiple efficiency improvements across the backend stack, including database query optimization (PostgreSQL), connection pooling, and batch operations to reduce response times and server load.
    • Refactored and tuned Java processes to minimize CPU and memory consumption, improving runtime stability and deployment scalability.
    • Introduced profiling and monitoring tools to detect bottlenecks and optimize resource usage in production systems.
    • Coordinated Agile sprints and technical reviews to align deliverables with performance and compliance requirements.
    ISO 27001 Performance Optimization Méthode agile Java Efficiency

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Education

  • Licentiate degree, Forestry
    Universidad Politécnica de Valencia, UPV
    2016

Skill set

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