Guido Morffi
Mobile & Full Stack Developer
Havana, Cuba
About
Mobile and Full Stack Developer with 4+ years of experience building web and cross-platform mobile applications. Specialized in React Native and Expo — designed and shipped production apps to both the Google Play Store and Apple App Store, with real-world integrations including BLE, push notifications, and real-time analytics. Experienced across the full stack: TypeScript and React on the frontend, Node.js and Python on the backend, and Go for high-throughput systems. Engineering background in telecommunications provides solid foundations in networking, systems design, and hardware-level integrations.
Experience
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- Middle Mobile Developer @ TecoposHavana, Cuba - RemoteSummary:
- Started by providing support and bug fixes on an existing mobile application. Then led the development from scratch of a business management app for Cuba, enabling administrators to access real-time business data. The app features push notifications, BLE integration for pairing thermal printers, and analytics. Built for high performance using libraries like MMKV. Published on both Google Play Store and Apple App Store.
Responsibilities:
- Diagnosed and resolved bugs in an existing React Native mobile application.
- Designed and developed a cross-platform business management application from the ground up.
- Implemented push notification system for real-time business alerts.
- Integrated Bluetooth Low Energy (BLE) for thermal printer connectivity.
- Optimized app performance using MMKV for fast key-value storage.
- Managed deployment and release processes for both Google Play Store and Apple App Store.
Achievements:
- Successfully launched a cross-platform business management app on both Play Store and App Store.
- Delivered real-time analytics and high-performance storage solutions for business administrators in Cuba.
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- IT Specialist @ Cuban Telecommunications Company (ETECSA)Havana, Cuba - HybridSummary:
- Developing and maintaining web applications using JavaScript, HTML, and CSS. Collaborating with the team to implement new features and fix bugs.
Responsibilities:
- Collaborated with senior developers to design and implement web applications using modern JavaScript frameworks.
- Assisted in debugging and optimizing front-end code to ensure smooth user experiences.
- Participated in code reviews and contributed to improve coding standards within the team.
Achievements:
- Developing and maintaining web applications using JavaScript, HTML, and CSS. Collaborating with the team to implement new features and fix bugs.
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- Junior Web/Firmware Developer @ Technical Institute of Research and DevelopmentHavana, Cuba - On siteSummary:
- Contributing to the development and maintenance of software applications using Python and Django. Collaborating with cross-functional teams to ensure quality and timely delivery of software solutions.
Responsibilities:
- Developed and maintained backend services using Python and Django.
- Worked closely with front-end developers to integrate user-facing elements with server-side logic.
- Participated in daily stand-ups and bi-weekly sprint planning meetings to ensure alignment with project goals.
Achievements:
- Successfully implemented a feature that enhanced user authentication, improving security measures.
Projects
Skills
Learning
Education
Havana University of Technology (CUJAE)
Telecommunications and Electronics Engineering
Certificates
Python Programming
In-person postgraduate course
English certificate
Online test for English cerfification