Alex G. Maggio

As a Senior iOS Engineer at Amex, I am tasked with maintaining and implementing functionalities related to hotel reservation within the Amex Travel Application.

As a Senior iOS Engineer at Venmo, I build and evolve mobile experiences used by millions of users, combining hands-on development with technical leadership across architecture, feature delivery, and engineering quality.

• Built and evolved high-impact iOS features for a product used by millions
• Key contributor to P2P Cross-Border and third-party partner integrations
• Partnered closely with product, design, QA, and engineering stakeholders

I engineered a mobile solution for tracking motorcycle rides, ensuring data persistence both locally and externally.

• Designed a Bluetooth communication protocol to connect the application with motorcycles for real-time data updates.
• Worked collaboratively with teams to refine application features and improve user engagement.
• Gained expertise in mobile development and Bluetooth integration, enhancing my technical skill set.

Guided the team while we built the base of a fintech app.

• Besides the leader and mentor, my tasks included evaluating new hires and retaintion of talent for the mobile team.
• I also worked on the implementation of a module to request and validate digital and physical cards.

• Hired to finish a single project related to buildings' roof's analysis. Implemented data synch between the app and the server.

Implemented solutions for smart devices.

• Led the development of solutions to control custom hardware and developed an SDK using ARKit & Metal and Google's ML Kit to detect driver drowsiness.
• Collaborated with cross-functional teams to implement innovative technologies for real-time video processing.
• Achieved a significant milestone by successfully integrating cutting-edge technologies to enhance driver safety measures.

• Worked on the migration from React Native to Native of one client's crypto currency app.

• Developed the native version of the previous hybrid app related to the real estate sector.

• Developed an app for a health insurance company based on Puerto Rico, whose main audience were senior citizens and people with disabilities, the app introduced me to the world of accessibility
• Rewrote an app for a payment processor in Central America that allowed the user to connect a card reader to the device and provide new payment methods for services.

• Maintenance of the main product for a client in US' financial sector.
• Developed a VR application using Unity3D for an expo.

• Implementation of new features for the AMC Theaters app and Payless Shoestore.
• Design and implementation of prototypes for new functionalities.

• Development of games using Objective-C.
• Developed with a teammate an internal tool to automate the translation of the games. The tool was written in C#

• Developed a tool to tune game levels visually.
• Created a tile map editor for an in-house engine.
• Game development using C++ and Objective-C.
• Used Unity3D and Cocos2D (when using Objective-C), and a propieraty engine based on Cocos2DX when dealing with C++.
• Implemented an A/B testing module used in multiple games within the company.

• Created a tool to allow developers to edit the UI without the assistance of artists. This greatly reduced the artists' workload and developers' downtime.
• Development using C# and Unity3D.
• Game development.

• Development using Visual Basic, VBA and C++.
• Developed a document organization system.
• Developed a tool enabling business analysts to create full systems without programming skills.
• Designed and implemented a plugin module to notify users about status of automated installations.