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Julio Manuel Fernandez JimenezJM

Julio Manuel Fernandez Jimenez

Senior Software Engineer & Tech Lead

500 €/día
Granada, ES
>15 años

Tiempo medio de respuesta: 1h

Acerca de Julio Manuel

Senior Software Engineer and Tech Lead with 25+ years of experience building SaaS products from concept to production. I specialize in Node.js, NestJS, and Angular, with a strong focus on architecture, quality, and automation. Proven experience leading technical teams and delivering scalable cloud platforms.
  • Español

    Bilingüe o nativo

  • Inglés

    Bilingüe o nativo

Acepta trabajo presencial
Granada (hasta 50 km)

Experiencia

  • NTT DATA
    Senior Software Engineer
    TELECOMUNICACIONES
    marzo de 2025 - Hoy (1 año y 3 meses)
    Barcelona, Spain
    • Implemented enterprise-grade E2E test automation and quality validation using Playwright.
    • Developed custom tools in Python and JavaScript for automated PDF comparison, supported by AI solutions.
    • Designed an AI-based system for automatic Playwright test generation from business analyst specifications.
    • Collaborated with distributed product, QA, and architecture teams.
    • Improved testing stability through advanced automation and internal tooling.
    Node.js Playwright Gestión CI/CD Python Generative AI
  • Multiples
    Co-Founder & CTO
    BANCA & SEGUROS
    agosto de 2022 - enero de 2026 (3 años y 5 meses)
    London, UK
    Stack: NestJS, Node.js, TypeScript, React, Kubernetes, Docker, GitHub Actions, MongoDB, Redis, ClickHouse, Cypress, DigitalOcean

    • Designed and built a SaaS platform from scratch using NestJS, Angular, React and Kubernetes, managing MongoDB and Redis clusters as well as DNS infrastructure.
    • Implemented a microservice architecture and automated CI/CD pipelines using GitHub Actions.
    • Developed a financial data ingestion and processing system integrating multiple external APIs (FactSet, Morningstar, among others) for over 15,000 companies, including normalization, enrichment, and data distribution.
    • Deployed and managed infrastructure on DigitalOcean, optimizing costs compared to AWS-based solutions.
    • Implemented and maintained a self-hosted ClickHouse cluster for analytics and large scale data processing.
    • Designed and integrated E2E test suites with Cypress and unit tests with Jest to validate critical product workflows.
    • Led the technical direction of the product alongside two co-founders, defining architecture, roadmap, and quality standards.
    • Scaled the platform to ~3,000 users with active paying customers.
    • Actively contributed to product and technical strategy decisions.
    React.js Kubernetes NestJs Data analysis Angular
  • Seqera Labs
    Senior Software Engineer
    BIOTECNOLOGÍA
    octubre de 2020 - diciembre de 2022 (2 años y 2 meses)
    Barcelona, España
    Stack: Java, Groovy, Micronaut, Vue.js, Nuxt, AWS, MySQL, Docker, Spock
    • Developed backend services in Java and Groovy using Micronaut for cloud-based bioinformatics platforms.
    • Implemented authorization and permission management systems for users and organizations.
    • Designed and built a web platform in Vue.js for software license management.
    • Integrated customer management and billing systems into the main API.
    • Implemented unit and integration tests in Micronaut using Spock to ensure backend stability and quality.
    • Contributed to architectural decisions and the technical evolution of the platform.
    • Actively participated in code reviews, quality improvement initiatives, and engineering best practices.

    Java Groovy MySQL Docker VueJS

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Formación

  • Master's Degree
    Universitat Oberta de Catalunya.
    2018
    Master's Degree
  • Bachelor's Degree
    Universitat Oberta de Catalunya.
    2015
    Bachelor's Degree

Conjunto de habilidades profesionales

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