Paulo – Node.js, Typescript, React

Artists, comedians, musicians, and content creators in Brazil promote their shows through scattered ticketing pages and social links, leaving fans without a single place to see where they perform next. This platform gives each creator a short, shareable profile page that combines a link-in-bio with a visual show agenda. Pasting a ticketing link (Sympla, Eventim) automatically pulls in the event photo, date, venue, and buy button, so the agenda stays current without manual entry. Creators sign in with one-click Google login and manage links, shows, and profile from a mobile-friendly dashboard.

• Designed, built, and launched the entire platform end-to-end as the sole engineer — from architecture and data model to production deployment.
• Split the backend into Dockerized microservices (Node.js/Express, Python, PHP) so new crawlers ship without touching the main API, making it faster and safer to add new ticketing sources.
• Built a browser-based crawler service that extracts event metadata from shared Sympla and Eventim links and auto-fills each artist's agenda.
• Used Vue.js for the lightweight public profile pages and Angular for the admin area, keeping the fan-facing frontend fast while giving creators a full-featured dashboard.
• Implemented passwordless Google OAuth onboarding and a Gemini-based image-generation module with security and token-cost controls.

A software consultancy that builds custom web and mobile products for enterprise and mid-size clients that need a senior team to take an idea from requirements to production. Engagements cover responsive Angular/TypeScript web applications, containerized API backends, and cross-platform mobile apps released to the App Store and Google Play. Past work includes high-volume transactional subsystems behind the e-commerce platforms of one of Brazil's largest media and publishing groups.

• Delivered custom full-stack applications end-to-end for enterprise clients, owning architecture, development, and production releases.
• Partnered with Editora Globo's engineering team to design high-volume transactional subsystems for its e-commerce platforms.
• Built and deployed containerized API microservices with Docker, Node.js, and PHP, keeping client integrations secure and highly available.
• Designed responsive front-end architectures in Angular and TypeScript for client web applications.
• Shipped cross-platform mobile apps with Flutter and Ionic, owning the full cycle from build to App Store and Google Play release.

An open-source, minimalist PHP framework for developers who need to ship APIs quickly without the boilerplate and overhead of heavyweight frameworks. It provides a fast routing engine, an ORM for database mapping, automated email queues, and a visual admin console that generates models directly from the database schema. In independent benchmarks that served identical JSON endpoints, it outperformed Slim, Symfony, and Laravel.

• Designed and built the framework from scratch; its routing engine serves 1,382+ requests/sec at 0.72 ms CPU latency with a 0.3 MB memory footprint, benchmarking ahead of Slim, Symfony, and Laravel.
• Built the ORM engine that maps database tables to PHP models with near-zero configuration.
• Built an interactive admin terminal that generates model code straight from the database schema, removing hand-written boilerplate for new APIs.
• Implemented automated email queues for reliable background delivery.
• Maintained the project as open source, including documentation and a public website.

A regional beer distribution business in Brazil supplying a network of points of sale. Running deliveries, stock, and orders across the network required in-house software for logistics, inventory, and delivery tracking, plus on-premises server infrastructure to run it.

• Co-founded the business and owned all of its technology for 12 years, from custom software to on-premises servers.
• Designed and built custom logistics management software to plan and track deliveries across the regional distribution network.
• Built inventory tools and automated operational workflows that replaced manual processes and let the business scale over 12 years.
• Set up and maintained the local server infrastructure the operation ran on.
• Took part in running the company beyond tech, including hiring, finance, and tax management.

Enterprise web products for international clients, built and maintained by distributed Agile teams at a nearshore software engineering company. The work covered Angular and React single-page applications, Node.js and PHP microservice APIs, and WordPress sites for clients across different industries.

• Architected and extended core Angular/TypeScript single-page application modules for international enterprise clients.
• Designed microservice REST API endpoints in Node.js and PHP and maintained full OpenAPI/Swagger specifications, giving frontend and partner teams a reliable API contract.
• Built, tested, and shipped features within distributed Agile teams working across time zones.
• Delivered across several client projects using Node.js, Angular, React, PHP, and WordPress.

A frequent-flyer loyalty platform for a major Brazilian airline program, where members earn and redeem miles for flights and partner rewards. It runs as a high-traffic website and mobile apps serving the program's member base.

• Shipped and maintained high-performance features for the high-traffic web platform as a core engineer on the team.
• Led two hybrid mobile app initiatives with Ionic, owning technical architecture through production release.
• Managed production deployments for the platform's web and mobile releases.
• Built and maintained backend features in Java.

A European fintech marketplace that lets savers compare and open savings and deposit products from partner banks online. Each new partner bank and product needed its own onboarding flow, and customer financial data had to move securely between the web portals and the backend.

• Built an internal framework that generates onboarding forms for new partner banks and products, cutting the development time needed to launch each one.
• Architected the single-page application front-ends of the customer portals with Angular, TypeScript, and Ionic.
• Built modular UI components integrated with the Ruby on Rails backend, securely passing transactional data to backend services.
• Built secure financial tracking portals for customers of the marketplace.

An SDK and API that let mobile app teams see how their apps are used — session time, user locations, and custom in-app events — and send targeted push notifications to their users. The product was built by an early-stage startup with a three-person engineering team.

• Built the push-telemetry and event-tracking backend with Node.js, Couchbase, and Elasticsearch, ingesting in-app events from client mobile apps at high velocity.
• Used Elasticsearch to power analytics on app usage time, user locations, and custom events.
• Owned backend features end-to-end as one of three engineers in an early-stage startup.

An integrated marketing management platform used by large companies to plan and run campaigns. It covers demand generation, marketing operations, multi-channel campaign management, digital marketing, performance analysis, and event management, and centralizes brand assets in a shared web library.

• Delivered client implementations across Europe on top of the platform's API, from architecture to rollout.
• Designed system architectures and database models for client-specific customizations.
• Built enterprise integrations in C#/.NET with MSSQL, connecting the platform to clients' internal systems.
• Managed client projects across several European markets.

An online payments API that lets merchants in Portugal accept payments on their websites and business systems. Merchants integrate it into their own platforms, often needing custom connectors to their existing software.

• Built custom payment-gateway integrations in PHP and MySQL that connected merchant systems to the payments API.
• Worked directly with merchant clients during implementation, scoping their needs and getting their integrations live.
• Developed small internal and client-facing systems around the payment flow.

Digital media applications, including the web and mobile products of what was then Latin America's largest online music network. The products covered music streaming, map-based features, and early iPhone apps.

• Built software for Sonora, then Latin America's largest music network, using C#, .NET, Java, and optimized SQL.
• Built iPhone apps with MonoTouch; stabilized an unreliable streaming player by isolating it behind an interface and iterating on implementations without breaking the rest of the app.
• Modeled relational databases and object-oriented systems for media applications.
• Integrated Google Maps API features and built interactive front-ends with JavaScript and jQuery.

A small software house in São Paulo building custom web applications and business systems for local clients, with relational databases on MSSQL, Oracle, and MySQL.

• Developed client web applications in PHP, ASP, .NET, and Java.
• Modeled relational databases and object-oriented systems, and administered MSSQL, Oracle, and MySQL databases.
• Designed UI layouts in Adobe Photoshop and implemented them in the front end.