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Alejandro FabianAF

Alejandro Fabian

Full Stack Developer and Database Specialist

€375/day
Guadalajara, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alejandro

With over 10 years of experience in the IT sector, I specialize in solving complex technical problems and building the invisible infrastructure that makes projects run smoothly. My approach is 100% pragmatic: I don't just write code, I design and implement robust solutions so you can stop worrying about the technical aspects.

How can I help you technically?

Backend Architecture and APIs: Development of efficient, custom logic (PHP, Laravel, Python).

Process Automation: Design of workflows in n8n to connect your tools, synchronize data, and eliminate manual tasks.

Databases and ETL: Design of structured SQL architectures, optimization of slow queries, and complex data migrations.

Self-Hosted Systems and Infrastructure: Deployment of containers (Docker), server environment configuration (Linux, AlmaLinux, LiteSpeed), and system orchestration.

Lightning-Fast Websites: Development of high-performance static websites using Astro.

I am constantly learning new technologies to always apply the most suitable tool to the problem. If you have a technical bottleneck, a database to optimize, or need to connect systems that don't talk to each other, write to me and let's analyze how to solve it.
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Guadalajara (up to 50km)

Experience

  • Addentra (Klinikare)
    Database Specialist / Software Integration
    March 2021 - March 2025 (4 years)
    • ● Data Engineering (ETL): Analysis, extraction, and transformation of complex databases from multiple sources (Oracle, Firebird, DBF, Filemaker, Access) for structured import into the main software.
    • ● Auditing and Maintenance: Performance of post-import audits and execution of SQL scripts to resolve critical incidents and implement custom modifications requested by clients.
    • ● Hardware/Software Integration: Configuration of links with radiovisiography (RVG) software and resolution of application-level connectivity issues (Java applets).
    Laravel SQL Server SQL MySQL C#
  • Axonade Solutions (ACSEP Iberia)
    IT Support Technician (Level 2)
    September 2018 - March 2021 (2 years and 6 months)
    • ● Logistics Systems Support: Incident resolution for the Infolog Warehouse Management System (WMS), including advanced queries and user administration.
    • ● Infrastructure Maintenance: On-site and remote support for computer equipment, radiofrequency (RF) terminals, and network industrial Zebra printers.
    • ● Systems Administration: Management of Active Directory and security policies in Windows domain environments.
    SQL IBM Db2 Infolog IBM AS400 Active Directory
  • Jazzplat España
    Technical Support Phone Operator (Level 1-3)
    September 2014 - September 2018 (4 years)
    • ● Escalated technical support for fiber optic (FTTH) installers for Jazztel and Orange infrastructures.
    • ● Resolution of network incidents, provisioning, and escalation of complex connectivity problems.
    BMC Remedy Microsoft Excel Avaya FTTH Phone Support

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Education

  • Professional Certificate in Project Management
    Google
    Certificado Profesional en Gestión de Proyectos
  • CFGM Technician in Microcomputer Systems and Networks
    IES Brianda de Mendoza
    2013
    CFGM Técnico en Sistemas Microinformáticos y Redes

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