Vitor Mariano Email & Phone Number

Santa Catarina, Brazil

• Refactored and optimized performance on high-traffic pages to boost SEO and meet the Core Web Vitals (CWV) standards.• Worked on initiatives that increased lead conversion rates by over 30% in my first year through A/B testing using Optimizely and internal tools with AWS services.• Customized a WordPress-based PHP CMS integrated with MongoDB and worked on data pipelines using Node.js and served them through GraphQL API.

I led software initiatives to complement the hardware and firmware development.• IoT API Development: Built a highly scalable GraphQL API in Go, backed by AWS services and a time-series database to manage device telemetries, commands, and deploy the required infra for devices on-demand on AWS using Pulumi.• Intranet Deployment: Set up an internal infrastructure using AWS ECS to run Mattermost (chat), Bitwarden (password management), and Bookstack (documentation) in a scalable, cost-effective environment.• Product Dashboard: Developed a real-time dashboard in Next.js for users to monitor device data such as location, measurements, and incidents.• API Documentation: Created comprehensive product and API documentation using Astro + Starlight.• AWS Activate Program: Helped the company join the AWS Activate program, securing two years of AWS credits by collaborating with AWS consultants.

San Francisco Bay Area

I was responsible for architecting and developing integrations with IoT APIs, such as Cisco Meraki, Butlr, and weather forecast services. I helped design and implement a platform that allows customers to access enriched building data and build solutions to optimize systems, like improving energy efficiency.

Florianópolis Area, Brazil

I contributed to high-impact projects for global clients, including Quizlet, McCormick, Powershop, and Coronation.• Quizlet: Enhanced ad performance for one of the world’s largest education platforms with 50M monthly active users by releasing new ad layouts to optimize revenue.• McCormick: Developed interchangeable web components for their CMS using pure HTML, CSS, and JavaScript to manage multiple websites for their products, like Frank’s Red Hot Sauce.• Powershop Pound Party: Led a development team to build a digital children’s book using React and Lottie animations to engage and educate children about the environment, pollution, and climate change.• Coronation: Led a development team to build a React-based website with interchangeable components, integrated with CMS, for this investment bank in Lagos, Nigeria.

Florianópolis Area, Brazil

I worked on projects for finance companies in Brazil, building and maintaining critical web and mobile applications.• Nexxera Multibank: Developed a web app for managing transactions, changes, and contracts for companies using CEF (Caixa), a public bank in Brazil, and maintained the legacy app built with Angular.• Franq Openbank: Created the first version of their mobile app using React, providing a foundation for their open banking services.

Recife E Região, Brasil

I helped address platform scaling challenges by transitioning from a monolithic Laravel back-end to a microservices architecture.• Migrated media processing to Node.js microservice on AWS Lambda and S3, improving efficiency and scalability.• Monitored and cached heavy endpoints, reducing server load and improving response times.• Set up the development environment using Docker for streamlined deployment and consistency.• Released new features in the Core API and maintained legacy features to ensure seamless platform functionality.

Recife E Região, Brasil

I contributed to several short-term projects for clients in Brazil and the US, and I introduced Docker to streamline the development and deployment process, significantly improving efficiency across the team.• Microsoft + Instagrafite: Built a landing page to promote their collaboration.• La Milla Extra (Copa Airlines): Developed a hot site to promote Copa Airlines’ ConnectMiles service.• OAB-PE: Created a mobile app for the Brazilian Lawyer Association in Pernambuco state, helping lawyers easily connect with the organization.• Oi, Atalla: Developed a mobile app for Brazilian physical educator Marcio Atalla, encouraging users to adopt healthier lifestyles.

Recife E Região, Brasil