Jesus Alejandro Trejo Martinez Email & Phone Number

London Area, United Kingdom

As the Senior Android Developer at KMA Tech, I was responsible for developing two Android applications from the ground up. My role included leading the architecture design, module creation, and implementation of key features to ensure seamless functionality and scalability.Key Responsibilities:Developed Android apps using Kotlin, Clean Architecture, and Jetpack Compose.Integrated local databases with Room, as well as payment services like Stripe and Moyasar.Implemented NFC reading, Deep Link Management, and Firebase services for database and authentication.Both apps were successfully launched on the Google Play Store.

Mexico City, Mexico

As the Senior Android Developer at Airtm, I was responsible for enhancing the app used by 500,000 active users. My work included leading a refactor to modernize the codebase and improve the app's performance, as well as upgrading the UI using Jetpack Compose.Key Responsibilities:Refactored the app’s architecture from Java to Kotlin to improve maintainability and scalability.Performed unit and integration testing to ensure functionality and code quality.Migrated the UI from XML to Jetpack Compose, optimizing performance and user experience.

Bogotá, Capital District, Colombia

In this role, I led the refactor and optimization of Chiper’s custom Android Point of Sale (POS) app. My work focused on improving app performance and integrating hardware components to ensure seamless communication between the app and POS devices.Key Responsibilities:Led the transition of the app from Java to Kotlin, improving performance and code maintainability.Integrated custom hardware components for the POS system.Managed app releases and improved the UI/UX for a better user experience.

Bangalore Urban, Karnataka, India

At Day To Day Health, I was responsible for building an Android healthcare app from scratch. My role included defining the architecture, developing features, and ensuring the app’s stability and scalability using Clean Architecture.Key Responsibilities:Designed and built the app using Kotlin and Clean Architecture, focusing on modularity and scalability.Developed healthcare service features and implemented unit testing for key components.Successfully launched the app on the Google Play Store, providing a seamless user experience.

Caracas Area, Venezuela

As a Senior Android Developer at Teravision Technologies, I worked on various high-profile projects for international clients. My role involved developing key features, optimizing app performance, and integrating advanced technologies like LibGDX for interactive maps.Key Responsibilities:Developed and optimized the Unicef Kid Power App and the MoCafi financial app.Integrated LibGDX to create interactive map features with parallax effects.Implemented payment gateway integrations (Akimbo, Plaid) for financial applications.

Greater Buenos Aires, Argentina

In my final months at Flyers Concierge, I took on a leadership role within the Android development team. I focused on maintaining and improving an existing Android app, implementing new features, and ensuring app performance through best practices like MVP architecture and Test Driven Development.Key Responsibilities:Led the development of new use cases and modules using MVP architecture.Utilized Test Driven Development (TDD) to optimize app performance and stability.Created dynamic screens based on API responses to improve user interaction.

Panama City, Panamá, Panama

As the lead mobile developer for the Wolftrip project, I was responsible for developing the Android app from scratch. My work included integrating social features, mapping services, and notifications to enhance the user experience for travelers.Key Responsibilities:Developed the app using Firebase for notifications and chat functionality.Integrated the Facebook API for social login and Google Maps for location-based features.Successfully launched the app to market, providing travelers with a smooth and engaging experience.

Caracas Area, Venezuela

As part of a development team, I worked on a fantasy sports web application called Fantasy Cobra. My role involved both front-end and back-end development, focusing on delivering a seamless user experience and reliable performance.Key Responsibilities:Worked on the back-end and front-end development using Laravel, PHP, HTML, and JavaScript.Contributed to creating a user-friendly interface and handling data for fantasy sports games.