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Gerardo Ivan García GonzálezGI

Gerardo Ivan García González

Develop Senior Expert

€360/day
Ciudad de México, MX
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Gerardo Ivan

Does your platform need to scale without compromising security?

With over 15 years of transforming complex code into high-availability systems, I specialize in robust backend architectures in PHP and hardening critical infrastructures. I don't just write code; I design solutions that eliminate technical debt and protect financial assets.

What I solve for your business:

• Elite Architecture: Implementation of Hexagonal Architecture and microservices with RabbitMQ for massive processes.

• Transactional Security: Audit and mitigation of vulnerabilities (OWASP) in payment systems and banking flows.

• Strategic Refactoring: Optimization of MySQL databases and reduction of cognitive complexity for long-term maintainable systems.

My differential? Combining the precision of systems engineering with an offensive cybersecurity mindset. If you're looking for stability and clean code under Git/Linux standards,
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Ciudad de México (up to 50km)

Experience

  • Peibo
    Backend Sr
    BANKING AND INSURANCE
    February 2026 - Today (6 months)
    Ciudad de México, Mexico
    Senior Backend Engineer expert in scalable financial architectures. I have advanced proficiency in PHP and MySQL for processing large volumes of transactional data, ensuring referential integrity and on-demand performance. With solid experience in Linux server administration and Git workflows, I specialize in auditing and mitigating technical vulnerabilities, ensuring that every system component meets the cybersecurity standards required by modern banking.
  • C3ntro Telecom,
    Develop Manager
    TELECOMMUNICATIONS
    June 2021 - February 2026 (4 years and 8 months)
    Mexico City, CDMX, Mexico
    Technical leader with an entrepreneurial mindset and experience in managing high-demand digital products. As Development Manager, I combine advanced architecture supervision (frontend and backend) with the integration of payment solutions and asynchronous services. I am passionate about mentoring technical talent and ensuring that every line of code contributes to a fluid, secure, and competitive user experience.
    Git Linux PHP MySQL JavaScript
  • C3ntro Telecom,
    Develop Sr
    TELECOMMUNICATIONS
    August 2017 - August 2021 (4 years)
    Mexico City, CDMX, Mexico
    Senior Software Engineer with a comprehensive view of the development lifecycle. Expert in deploying robust solutions in both backend (PHP, MySQL) and modern frontend (Tailwind, dynamic CSS, Bootstrap) as well as version control with Git. My priority is delivering clean, secure, and highly maintainable code, with proven experience in cybersecurity audits and vulnerability mitigation to protect digital assets and payment systems.

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Education

  • Master's in Information Technology Security
    UNITEC
    Maestría en Seguridad de Tecnologías de la Información
  • Computer Systems Engineering
    UNITEC
    Ingeniería en Sistemas Computacionales

Skill set

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