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Fiverr Pro
Nederlands
$
USD
Gustavo B
@gustavo_bergamo
Software Engineer
Brazilië
Portugees
Over mij
I am a senior systems software engineer specialized in designing and developing end-to-end systems using PHP, including backend architecture and scalable web platforms. I also have strong experience in performance optimization, distributed systems, and complex integrations, as well as mobile development.
Skills
Gustavo B
offline •
Gemiddelde reactietijd: 23 uur
Bekijk mijn diensten
Websites op maat
I will turn your idea into a system
Bugfixes
I will fix errors and add features to your PHP web app
Portfolio
Werkervaring
Software Engineer
Senior Home Living Maplewood Home Care • Fulltime
Jan 2021 - Present • 5 yrs 4 mos
Led the development of web (PHP) and mobile applications (React Native / Lua), ensuring cross-platform consistency and continuous product evolution. Built and maintained robust email integrations (Outlook, Gmail via SMTP), ensuring reliability. Developed a dynamic customization layer for forms, lists, tabs, and reports, accelerating feature delivery. Implemented observability solutions for user activity tracking, improving traceability and reducing incident diagnosis time. Created internal profiling tools to identify bottlenecks and drive performance improvements. Optimized legacy system screens, reducing response time by up to 60%. Led the migration from MySQL 5.7 to 8.0, analyzing execution plans, optimizing queries and indexes, ensuring stability and performance gains.
Software Engineer
Netarus • Fulltime
Sep 2018 - Jan 2021 • 2 yrs 4 mos
Integrated multiple payment gateways (PagSeguro, Mercado Pago, InfinitePay), implementing end-to-end billing flows, webhooks, and transactional validation in PHP, improving financial reliability and traceability. Contributed to migrating a legacy database from Microsoft Access to MySQL, increasing ERP scalability and performance. Optimized ERP client and service order screens in VB6, reducing response time by up to 40%. Standardized UI components and layouts, fixing responsiveness issues and improving user experience. Developed structured logging and error handling modules in VB6, reducing diagnosis time and improving support efficiency.
