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Álvaro Carrión SánchezÁC

Álvaro Carrión Sánchez

Software Engineer

€350/day
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Álvaro

I am a software engineer and technology consultant specializing in web development, backend, APIs, business automation, and artificial intelligence.

I help companies, freelancers, and local businesses digitize their processes, improve their online presence, and reduce manual tasks through tailor-made technological solutions.

I work on the design and development of web applications, SaaS platforms, administration panels, integrations with external services, AI automations, and internal tools for businesses.

I have experience with technologies such as Python, FastAPI, Java, Spring Boot, C#, .NET, Laravel, React, TypeScript, PostgreSQL, Docker, and integration of AI models like GPT and local LLMs.

I also develop specific solutions for restaurants and local businesses, such as professional websites, digital menus with QR codes, reservation systems, product management, and sales automation.

My approach combines technical vision with business orientation: I don't just develop software, but I aim to create useful, scalable, and easy-to-maintain solutions.
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Madrid (up to 50km), Málaga (up to 50km)

Experience

  • NTT DATA – proyecto para BBVA
    Software Engineer / Calypso Developer
    INTERNET OF THINGS (IOT)
    July 2024 - Today (2 years and 1 month)
    Madrid, Spain
    • ● Development and maintenance of backend logic in a corporate environment.
    • ● Technical analysis and incident resolution in complex systems.
    • ● Work with integrations and financial processes within an enterprise platform.
    • ● Support and evolution of technical components with a focus on operational stability.
    • ● Collaboration within environments with corporate repositories, deployments, version control, and structured processes.
    • ● Participation in contexts where technical quality, traceability, and software reliability are essential.
    • ● Involvement in tasks related to data, business logic, error handling, debugging, and technical support.
    • ● Exposure to production practices, CI/CD, troubleshooting, technical validation, and maintenance of deployed systems. architectural
    Back-End Development Java Calypso API Integration Financial Systems
  • NTT DATA – proyecto para Intesa Sanpaolo / BBVA
    Engineering Intern / Calypso Development
    October 2023 - August 2024 (10 months)
    Support for the development and maintenance of Calypso-related applications.
    • ● Participation in technical analysis and incident resolution tasks.
    • ● Adaptation to corporate workflows, tools, and production code.
    • ● Exposure to real integration processes, backend development, and technical operations.
  • CarryOn Consulting
    CEO & CTO | Freelance Software Engineer & AI Consultant
    SOFTWARE PUBLISHING
    November 2024 - Today (1 year and 9 months)
    Madrid, Spain
    Founder and technical lead of CarryOn Consulting, a consultancy specializing in software development, business automation, artificial intelligence, and digital solutions for businesses.

    Design and development of web applications, APIs, SaaS platforms, administration panels, integrations with external services, and automation systems to improve internal processes and reduce manual tasks.

    Mainly working with technologies such as Python, FastAPI, Java, Spring Boot, C#, .NET, Laravel, React, TypeScript, PostgreSQL, Docker, and integration of AI models like GPT and local LLMs.

    Also developing solutions for the hospitality industry and local businesses, including professional websites, digital menus with QR codes, reservation systems, product management, sales automation, and internal administration tools.

    Main Responsibilities:
    - Backend and frontend development of custom applications.
    - Design of scalable and maintainable technical architecture.
    - Integration of APIs, payments, automations, and AI tools.
    - Technology consulting for business digitalization.
    - Creation of SaaS solutions and proprietary products.
    - Technical project management from initial idea to final deployment.

    My goal is to help companies, freelancers, and local businesses digitize their processes, improve their online presence, and increase their efficiency through modern technology, automation, and artificial intelligence.
    Back-End Development API Integration Artificial Intelligence Web Development Automation

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Education

  • Computer Engineering
    Universidad Internacional de La Rioja
    2023

Skill set

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