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Vitor Siqueira

Resume

Vitor Alvarenga de Siqueira

Systems Development Analyst · Full stack

Versão em português

Summary

Systems Development Analyst with experience in PHP and Laravel, Node.js, React Native and RESTful APIs. I started as a web development intern, taking part in every stage of a project, from requirements analysis to delivery. Today I deliver scalable solutions that integrate internal and external systems, applying Clean Architecture, SOLID and asynchronous processing with RabbitMQ, with a focus on performance, quality and user experience.

Professional experience

Agile Corp, Serviços Especializados

Systems Analyst, Mid-level

Featured project

Rock in Rio 2026: meal voucher system

I rewrote the system that sells and tracks the festival's meal vouchers, from the data model to the screens, in about ten weeks.

  • New credit flow: the sale releases a balance, the company plans its meals in the Client Area, and only then is the voucher issued.
  • Single-use QR code validation at the dining halls and a same-day dashboard on tablets.
  • Cash closing, POS Controle lookups and reports in spreadsheet and PDF.
  • PHP 8.1 with no framework on PDO and MySQL, organized into 26 domain modules.
  • At the event: 56,901 vouchers validated and 33 companies served over 46 days of operation.
See the full case

Full case at vitorsiqueira.com/en/projects

  • Modernized legacy systems in PHP and Laravel with Clean Architecture, SOLID and a modular architecture, reducing bugs and development time.
  • RESTful APIs in Node.js with secure authentication, versioning and Swagger/OpenAPI documentation.
  • Asynchronous processing with Laravel Queues and RabbitMQ, with workers orchestrated by Supervisor.
  • Apps in React Native, using React Router, Redux, Context API and componentization.
  • CI/CD pipelines with Jenkins, Docker and Git Flow on Linux environments.
  • Refactored SQL queries, cutting critical response times by up to 84%.
  • Technical leadership on integrations between internal and external systems, reducing dependence on third-party software.
  • Mentoring of interns and junior developers, plus code and architecture reviews.
  • Technical specs, estimates and sprint management, with regular reporting to product and stakeholders.

Agile Corp, Serviços Especializados

Junior Systems Analyst

  • Development and maintenance of systems in PHP, Laravel and Node.js, with Python on occasional projects.
  • Integration of internal and external systems through REST APIs, from requirements gathering to delivery.
  • Introduced Git Flow, ending direct changes in production.
  • CI/CD pipelines with Jenkins and deploy automation.
  • RabbitMQ queues and consumers to move heavy processing out of the user's way.
  • React interfaces, with React Router and Redux, for dashboards and internal tools.
  • A Python application that maps folders and files, reconciles them with the database and renames them to match the records.
  • Custom SQL reports and end-user support.

Comercial Milano Brasil Ltda.

Systems Development Intern

  • System maintenance and improvement, troubleshooting and technical support.
  • Administration of relational and NoSQL databases.
  • Front-end, back-end and mobile development, with technical documentation and handover.

Main projects

  • Maintenance System: ticket opening and management of corrective and preventive maintenance, replacing paper forms. PHP, HTML, CSS and Node.js APIs.
  • Satisfaction Survey: platform with a kiosk and QR codes for quick, detailed feedback. React and Laravel APIs.
  • Routing App: optimized routes for drivers and web scheduling, to cut time and fuel. React Native and Firebase.