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Antonio Jesús Cabanillas FernándezAJ

Antonio Jesús Cabanillas Fernández

FullStack Developer

€100/day
Sevilla, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Antonio Jesús

I help companies, agencies, and SMEs make the digital leap with custom web development, combining impeccable frontend performance with the robustness and scalability of backend systems.

As a specialized FullStack developer, I design and build custom applications, complex web portals, and advanced integrations tailored to the real needs of each business. My approach combines the agility and user experience of React with the power of Python for business logic and data management, covering everything from headless architectures to connections with ERPs like Odoo.

What can I bring to your projects?

Custom Frontend Development: Fluid, modern, and optimized interfaces using React and HTML5/JavaScript to deliver an outstanding user experience.

Backend and Server Logic: Clean and secure architectures in Python, development of robust APIs, and efficient WebServices.

Integrations and Systems: Advanced connectivity between platforms and databases to automate processes and unify your business operations.

If you're looking for an experienced technical profile to bring an application to life from scratch, optimize an existing development, or act as a trusted technological partner, let's talk to focus on your next project.
  • Spanish

    Native or bilingual

  • English

    Conversational

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

Experience

  • Las dos doncellas ibéricos
    FullStack Developer
    RETAIL (SMALL BUSINESS)
    May 2026 - Today (3 months)
    Sevilla, Spain
    Custom design and development of the e-commerce platform for Ibéricos Las Dos Doncellas, combining an attractive and fluid online shopping experience with a robust backend capable of centralizing stock management, catalog, and online sales processes.

    Architecture and Technological Stack: Implementation of agile and scalable development using a modern approach with React for the frontend, ensuring fast, conversion-oriented navigation, backed by solid logic in Python and Odoo in the backend.

    Integral Management and Synchronization: Advanced integration with enterprise management systems (ERP/Odoo) to automate inventory synchronization, real-time stock control, and traceability of Iberian products.

    Conversion Optimization and Shopping Experience (UI/UX): Layout of a visually appealing catalog that conveys the artisanal quality of the product, simplifying the payment funnel and offering a secure, mobile-friendly gateway.
    ERP Implementation Content Management Systems (CMS) Python React.js JavaScript
  • Voltaris Industry
    FullStack Developer
    ENERGY AND UTILITIES
    November 2025 - May 2026 (6 months)
    Sevilla, Spain
    Comprehensive design and development of the corporate web platform for Voltaris, aimed at enhancing their digital presence in the industrial sector. The project was approached from a custom development perspective to ensure a fast, modern user experience completely aligned with the firm's technical identity.

    Architecture and Performance: Structuring of an optimized frontend for fluid navigation, prioritizing loading times and a clean, responsive layout on all devices.

    Corporate Focus and UI/UX: Creation of a sober and professional interface that facilitates the presentation of complex technical services, improving lead generation and information clarity.

    SEO Optimization and Positioning: Technical configuration oriented towards search engines to ensure optimal visibility in their sector's industrial market.
    Python React.js HTML5 Webservices Industry 4.0
  • Reciclados La Red byVeolia
    IT Department Manager|
    April 2023 - December 2025 (2 years and 8 months)
    Comprehensive management of the IT department, ensuring advanced technical support for over 200 users. Management of critical infrastructure, including telephone network administration and multi-brand reprographic control (Ricoh, HP, Konica Minolta). Leadership of modernization projects, executing massive operating system migrations and IT service consolidation. Administration of corporate identities through LDAP, Domain, and ADGD, along with advanced Google Workspace management. Operational and financial control, managing purchases, hardware stock, and negotiation with technology asset suppliers.

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Education

  • Higher Degree in Multiplatform Application Development (DAM)
    IES Aguadulce
    2022
    CFGS Desarrollo de Aplicaciones Multiplataforma (DAM)
  • Intermediate Vocational Training in Electrical and Automatic Installations
    IES Sagrado Corazón de María
    2015
    CFGM Instalaciones Eléctricas y Automáticas

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