![Raphael Douglas](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2026/07/avatar_73421_1785499076.jpg) Raphael Douglas # Senior Software Engineer Actively looking · Member since 31 Jul 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationBelo Horizonte, BrazilDesired salary6000–8000 USD/monthlyWork preferenceRemote Only / Full TimeExperience levelSenior * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Senior Software Engineer with over nine years of experience building scalable and efficient web, mobile, and backend applications. I specialize in modernizing legacy systems, designing maintainable architectures, and delivering reliable software across diverse technology stacks. I have led the development of applications using JavaScript, TypeScript, React, React Native, Next.js, Node.js, Go, PHP, and Laravel. I apply SOLID principles, Clean Code, Design Patterns, Test-Driven Development, unit testing, and integration testing to create scalable and long-lasting software. I have led enterprise identity integrations, developed shared OAuth2 and JWT authentication platforms, and contributed to efforts that resulted in ISO 27001 certification. I also have experience with cloud infrastructure, containers, CI/CD, mobile application publication, real-time features, biometric authentication, and scalable AWS-based systems. Notice period: Immediately ## Skills 38 capabilities[Authentication](https://jobicy.com/talent/authentication.md)[Authorization](https://jobicy.com/talent/authorization.md)[Backend Development](https://jobicy.com/talent/backend-development.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Clean Code](https://jobicy.com/talent/clean-code.md)[Cloud Computing](https://jobicy.com/talent/cloud-computing.md)[Design Patterns](https://jobicy.com/talent/design-patterns.md)[Docker](https://jobicy.com/talent/docker.md)[Firebase](https://jobicy.com/talent/firebase.md)[Frontend Development](https://jobicy.com/talent/frontend-development.md)[Go](https://jobicy.com/talent/go.md)[Integration Testing](https://jobicy.com/talent/integration-testing.md)[JavaScript](https://jobicy.com/talent/javascript.md)[JWT](https://jobicy.com/talent/jwt.md)[Kubernetes](https://jobicy.com/talent/kubernetes.md)[Laravel](https://jobicy.com/talent/laravel.md)[Mobile Development](https://jobicy.com/talent/mobile-development.md)[MySQL](https://jobicy.com/talent/mysql.md)[Next.js](https://jobicy.com/talent/next-js.md)[OAUTH2](https://jobicy.com/talent/oauth2.md)[Phalcon](https://jobicy.com/talent/phalcon.md)[PHP](https://jobicy.com/talent/php.md)[Push Notifications](https://jobicy.com/talent/push-notifications.md)[React](https://jobicy.com/talent/react.md)[React Native](https://jobicy.com/talent/react-native.md)[Real Time Applications](https://jobicy.com/talent/real-time-applications.md)[REST APIs](https://jobicy.com/talent/rest-apis.md)[Scalability](https://jobicy.com/talent/scalability.md)[Single Sign On](https://jobicy.com/talent/single-sign-on.md)[Software Architecture](https://jobicy.com/talent/software-architecture.md)[Software Engineering](https://jobicy.com/talent/software-engineering.md)[SOLID](https://jobicy.com/talent/solid.md)[System Modernization](https://jobicy.com/talent/system-modernization.md)[Test Driven Development](https://jobicy.com/talent/test-driven-development.md)[TypeScript](https://jobicy.com/talent/typescript.md)[Unit Testing](https://jobicy.com/talent/unit-testing.md)[Vue.Js](https://jobicy.com/talent/vue-js.md)[Web Development](https://jobicy.com/talent/web-development.md) ## Tech stack & tools Working toolkit ### Application Hosting [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/firebase/firebase-original.svg) Firebase](https://jobicy.com/talent?tool=firebase.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/redis/redis-original.svg) Redis](https://jobicy.com/talent?tool=redis.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/mysql/mysql-original.svg) MySQL](https://jobicy.com/talent?tool=mysql.md) ### Design [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/storybook/storybook-original.svg) Storybook](https://jobicy.com/talent?tool=storybook.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/docker/docker-original.svg) Docker](https://jobicy.com/talent?tool=docker.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/kubernetes/kubernetes-original.svg) Kubernetes](https://jobicy.com/talent?tool=kubernetes.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/go/go-original.svg) Go (Golang)](https://jobicy.com/talent?tool=go.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/javascript/javascript-original.svg) JavaScript](https://jobicy.com/talent?tool=javascript.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/laravel/laravel-original.svg) Laravel](https://jobicy.com/talent?tool=laravel.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/phalcon/phalcon-original.svg) Phalcon](https://jobicy.com/talent?tool=phalcon.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/php/php-original.svg) PHP](https://jobicy.com/talent?tool=php.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/react/react-original.svg) React](https://jobicy.com/talent?tool=react.md) ### Libraries [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/redux/redux-original.svg) Redux](https://jobicy.com/talent?tool=redux.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/zustand/zustand-original.svg) Zustand](https://jobicy.com/talent?tool=zustand.md) ## Experience Career history ### Senior Software Engineer · Clever Advertising 2025 – PresentLed the integration with Microsoft Entra ID, establishing enterprise-grade identity federation and supporting the organization's ISO 27001 certification efforts. Architected and developed clever-auth, a shared OAuth2 and JWT authentication platform adopted across PHP and Go services. Led the migration of legacy PHP applications to Go, improving platform maintainability, scalability, and long-term performance. Worked with Go, PHP, Laravel, Phalcon, React.js, Kubernetes, Docker, TDD, Spec-Driven Development, Redis, MySQL, and AWS services. ### Principal Software Engineer · Seedz 2023 – 2025Responsible for implementing new requirements and maintaining the continuous evolution of the company's ERP and social network web and mobile platform. Applied SOLID principles, Clean Code, Design Patterns, and unit and integration testing to build scalable, maintainable, and long-lasting software. Worked with React Native, Context API, Zustand, Storybook, CodePush, Next.js, Node.js, MySQL, Firebase, Docker, and CI/CD with GitHub Actions. ### Senior Software Engineer · Geral Geek 2018 – 2023Led and implemented the entire web and mobile application project for a marketplace, including deployment to Google Play and the App Store while following publication guidelines. The application generated 45% of the company's revenue compared with the web application. Worked with React Native, Redux, OTA updates, OneSignal push notifications, real-time features, SSO login, biometric authentication, Laravel, React.js, AWS S3, SQS, RDS, Lambda, and Docker. ## Education Learning history ### Centro Universitário UNA 2017 – 2021Bachelor's Degree, System Development ### FIAP 2026 – 2027Specialization, Software Architecture This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.