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Ismael Heluani GaheteIH

Ismael Heluani Gahete

Senior Software Engineer

€480/day
Sevilla, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Ismael

Senior Software Engineer with over 9 years of experience specializing in backend development with Java and Spring Boot. Expert in legacy system modernization, microservices architectures, hexagonal, and distributed systems in cloud environments (AWS).

I have led projects in the financial sector (core banking), energy (ENEL), and international organizations (WIPO - World Intellectual Property Organization). I excel in:
• Refactoring monoliths to scalable and maintainable architectures
• Design and implementation of secure, high-performance REST APIs
• Technical leadership of teams, mentoring, and CI/CD processes
• Experience in Linux, batch processes, monitoring, and production incident resolution

Currently at BASE100 (Kyndryl ecosystem), modernizing core banking systems. Previously at NTT DATA and projects for ENEL.

Available for part-time remote projects (10-20h/week) or full-time freelance. Focus on clean code, best practices, and rapid value delivery.
  • Arabic

    Native or bilingual

  • English

    Fluent

  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • BASE100 (ecosistema Kyndryl/Caravel)
    Senior Software Engineer / Analyst
    November 2024 - Today (1 year and 7 months)
    • Led the backend modernization of a core banking system in Java applying good architectural practices.
    • Refactoring of a legacy monolith towards scalable and maintainable modules.
    • Stable deliveries ensuring parity with mainframe processes.
    • Work in Linux environments for backend services, batch processes, production incident resolution, log analysis, and operational support.
    Java JPA/Hibernate Spring boot Hexagonal Architecture Git
  • NTT DATA
    Programmer Analyst → Analyst/Senior Programmer
    July 2020 - November 2024 (4 years and 4 months)
    • Development and maintenance of microservices-based applications for the World Intellectual Property Organization.
    • Full-stack development (Java/Spring Boot + Angular).
    • Leadership of a team of engineers, mentoring in best practices and agile ceremonies.
    • Improved the deployment process (AWS + Jenkins CI/CD), reducing delivery time by 30%.
    • Daily work on Linux systems for microservices deployment, monitoring, CI/CD pipelines, and incident analysis.
  • Impulsa Soluciones Informáticas
    Senior Developer / Programmer Analyst
    December 2018 - July 2020 (1 year and 7 months)
    • Design and implementation of fraud detection systems and telemetry management tools.
    • Led a team of developers, introducing Spring Boot and better development practices.
    • Migration of legacy systems to modern Java frameworks, ensuring business continuity.

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Education

  • Master in Design and Programming
    Obicex
    2018
    Máster en Diseño y Programación
  • Computer Engineering
    University of Seville
    2017
    Ingeniería Informática

Skill set

Categories