Gustavo – Symfony, PHP, React

It's an online digital marketplace and consumer platform that connects homeowners with local service professionals for home repair, maintenance, remodeling, and improvement projects

• Designed and implemented a scalable, reliable, secure and PCI compliant payments ecosystem that processes over $100M per year.
• Harmonized the payments ecosystem architecture, dependencies, and practices, reducing the cognitive overload when switching projects and improving the efficiency of AI-supported (agentic) development.
• Orchestrated a complex data migration strategy, transforming and moving millions of historical invoices to the new platform with zero data loss.

It's an electronic components marketplace.

• Played a pivotal role in the success of the marketplace and various internal tools.
• Led efforts in reverse engineering and migrating legacy applications.
• Planned, implemented, and maintained high-performance APIs.
• Delivered essential business solutions that significantly contributed to the company's growth and efficiency.

It's a leading global travel-tech company, offering long-distance bus and train travel solutions across more than 40 countries on 5 continents.

• Provided critical support to internal and external customers for seamless API integration.
• Authored and continuously updated comprehensive documentation for public-facing APIs.
• Developed an advanced API Management Platform utilizing cutting-edge technologies.
• Drove innovation and enhanced the company's technological capabilities.

It's a US-based company that sells dietary supplements in multiple international markets.

• Designed, implemented, and deployed software products pivotal in generating millions of dollars in revenue.
• Coordinated third-party contractors to deliver timely, business-tailored, and budget-compliant solutions.
• Developed and executed data-driven conversion optimization strategies.
• Boosted revenue and enhanced overall business performance.