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Roberto G.RG

Roberto G.

Freelance CTO and Full-Stack Engineer

€250/day
Barcelona, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Roberto

I am a technical consultant and Full Stack Developer with over 4 years of experience supporting startups and growing companies from product definition to technical execution and scalability. I combine full-stack development, DevOps, infrastructure, and strategic vision, delivering solutions that align technology with business objectives.

I currently manage complete projects for active clients, including a taxi network, leading the entire technological cycle: frontend and backend development with Laravel, PHP, Vue, React, Angular, and Flutter, database and API design, scalable system architecture, Linux server administration, Docker, CI/CD, monitoring, backups, and process optimization.

I work directly with CEOs and product teams, providing strategic vision, prioritizing initiatives, and operational improvements that drive growth, efficiency, and user experience. I define myself as someone oriented towards solving complex problems, building robust and scalable systems, and maintaining a practical focus on measurable results.

I offer web and mobile development, project management, database design, and API integration, with a mindset of ownership, autonomy, and technical excellence. My goal is for technology to be a growth engine and not a bottleneck, delivering robust, optimized solutions ready to scale with the business.
  • Spanish

    Native or bilingual

  • Catalan

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • RocoTech Consulting
    Freelance CTO and Full-Stack Engineer, optimizing processes and technology.
    SOFTWARE PUBLISHING
    February 2025 - April 2026 (1 year and 2 months)
    Barcelona, Spain
    I am a technical consultant and developer, specializing in supporting startups and growing companies from product definition to technical execution and scalability. My profile combines full-stack development, infrastructure, DevOps, and strategic thinking, with a very practical focus on business results.

    🧩 What I do currently

    I work with active clients, including a taxi network, managing the entire technology chain end-to-end:

    Frontend and backend development
    Database and API design
    Scalable system architecture
    Linux server administration and Docker environments
    CI/CD, monitoring, backups, and process optimization

    🤝 Strategy and collaboration

    I collaborate directly with the CEO on strategic decision-making, combining technical knowledge, product logic, and business vision. My role goes beyond development: I analyze friction points, propose improvements, prioritize initiatives, and help align technology with objectives such as growth, operational efficiency, and user experience.

    🛠️ Technical Experience

    I come from demanding corporate and technological environments, where I have worked with modern stacks like Laravel, PHP, Vue, JavaScript, Angular, React, Flutter, Docker, CI/CD, and Linux, always focusing on quality, maintainability, and real impact. This allows me to move comfortably in both startup contexts and larger structures.

    🚀 How I work

    I define myself as someone oriented towards solving complex problems, optimizing processes, and building robust systems that scale with the business. I work remotely and autonomously, with a mindset of ownership, paying attention to technical details without losing sight of the ultimate goal: making technology a growth engine and not a bottleneck.
    PHP MySQL Linux Architecture DevOps
  • Altia
    Full-Stack Engineer
    SOFTWARE PUBLISHING
    January 2024 - July 2025 (1 year and 6 months)
    As a Full Stack Engineer at Altia, I actively participated in the design, development, and deployment of complete digital solutions, addressing both the front-end and back-end of critical applications. During my tenure, I worked on four key projects, collaborating closely with multidisciplinary teams to deliver scalable, efficient products aligned with business objectives.

    My responsibilities included:

    Development of web and mobile applications using modern technologies (JavaScript, TypeScript, React, Angular, Node.js, Python, etc.).
    Design and implementation of RESTful APIs and microservices, ensuring seamless integration with internal and external systems.
    Optimization of relational and non-relational databases, guaranteeing high performance and scalability.
    Collaboration in complete agile development cycles, from planning to testing, deployment, and maintenance.
    Implementation of DevOps and CI/CD best practices, improving deployment efficiency and the reliability of production environments.
    Resolution of complex problems and code refactoring to enhance maintainability and user experience.

    Key achievements:

    Successful delivery of 4 complete projects, contributing to significant improvements in productivity and user experience.
    Reduction of loading times and improvement of backend efficiency in several key modules.
    Establishment of coding and collaboration standards that strengthened team cohesion and product quality.

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Skill set

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