Rafael de Siqueira

Initially, as a Squad Leader, I led the development of the NetZero module, overseeing the entire lifecycle—from requirements gathering and refinement to final delivery—while ensuring alignment with business objectives and quality standards. Following this role, I transitioned into a Software Architect position, where I was responsible for the complete rewrite of the Climas software using React/Next.js and Golang, modernizing the platform’s architecture and enhancing scalability and maintainability. During my leadership period, I also ensured the maintenance and support of the legacy system built with Angular and PHP. Key Achievements: • Successfully led a multidisciplinary team in the delivery of the NetZero module, meeting deadlines and quality benchmarks. • Architected and implemented the new version of Climas, adopting modern technologies (React/Next.js, Golang) and using DDD (Domain Driven Design). • Leveraged AWS infrastructure and Docker to deliver a scalable, cost-efficient environment. • Managed MySQL, Postgres and MongoDB databases. Technical Expertise: • Full-stack development with Python, Flask, Golang, PHP, JavaScript/TypeScript (Angular, React, Next.js). • Advanced use of AWS services and Docker containerization. • Proficiency in MySQL and MongoDB. • Strong background in agile software development and leading cross-functional teams.

I led development initiatives that drove efficiency and innovation within the company. I stand out for my expertise in various technologies and the ability to create integrated and effective solutions to meet specific business demands. Key achievements include: • Development of Business Intelligence (BI) tools using MySQL, Pentaho Data Integration, and Python to unify and process data from various sources, optimizing processes and facilitating analysis and data querying crucial to the business. • Creation of robust web applications using the Django Framework, including an Intranet with integrated authentication with Active Directory, control of goods dispatch, and systems for reconciling credit card payments, ensuring the security and efficiency of internal processes. • Development of strategic integrations with the VTEX platform, such as product catalog integration with Pinterest and TikTok, along with other integrations using APIs such as Google Sheets, Google Analytics, Correios, Jadlog, and Mailchimp, expanding the visibility and reach of the company's products. • Responsible for the implementation and administration of security and infrastructure solutions, including Firewall and Active Directory, ensuring the integrity and security of the company's systems and data. My technical skills include: • Proficiency in Python, Django, Flask, MySQL, and other technologies like TypeScript and React. • Experience in integrations with various platforms, including VTEX and Google Workspace. • Proficiency in front-end development with React and NextJS. • Expertise in data analysis tools such as Google Data Studio and Google Analytics.

As the IT Coordinator, leading a technical support team, I played a crucial role in the efficient management of IT environment deployment, security, optimization, and licensing projects. I stand out for significantly boosting the company's service and solution offerings by establishing strategic partnerships with renowned companies like Kaspersky, VMWare, and Veeam. Key contributions include: • Coordinating and leading technical teams in comprehensive projects, from implementation to system maintenance. • Developing and managing strategic partnerships with key suppliers such as Kaspersky, VMWare, and Veeam, resulting in an expanded range of services and solutions offered to clients. • Negotiating licensing and contract agreements, ensuring compliance and operational efficiency. • Directing efforts towards continuous improvement of internal processes, aiming at resource optimization and delivery of high-quality solutions. • Direct involvement in client relations, ensuring an understanding of their needs and offering personalized solutions to meet specific demands. • Proficiency in programming languages PHP/HTML/CSS/JavaScript, contributing to the development and customization of internal solutions.

I played an essential role in coordinating projects for the deployment, security, optimization, and licensing of IT environments. I led initiatives to improve internal processes within the company, notably through the implementation of a WDS server with customized images, resulting in significant improvements in the technical team's productivity. Key achievements include: • Coordinating and leading technical teams in multifaceted projects, from implementation to maintenance of Windows Server, Linux, and Zimbra systems. • Implementing and managing firewall solutions, ensuring the security and integrity of company data. • Efficient management of Microsoft and Office365 licensing, optimizing resources and reducing costs. • Administering VMWare virtual environments and implementing backup solutions with Veeam, ensuring business continuity. • Implementing and configuring network monitoring with Zabbix, ensuring system availability and performance. • Maintaining and optimizing network infrastructure with Mikrotik equipment, providing stable and secure connectivity. • Implementing and managing cybersecurity solutions with Trend Micro, mitigating threats and protecting company assets. • Proficiency in programming languages PHP/HTML/CSS/JavaScript, contributing to the development and customization of internal solutions.