Trilingual professional with 9+ years working in support for important companies, excellent customer support, always focus on quality and efficiency, real problem solver, not giving up on a problem no taking aside its difficulty, trustworthy, honest, great disposition for the company always giving the 110% of the capabilities. A Cenfotec graduated student, on Professional Mobile Program and System Engineer bachelor's degree from UAM, experienced on Android development, assigned with eCommerce and retail applications for multinational companies, taking issues, bug and new features or implementations into production.
Hi, I’m
Javier Guerrero Toledo
Software Developer - Android Developer
Heredia
Summary
Overview
3
years of professional experience
7
years of post-secondary education
1
Certificate
Work History
Apex DigitalSan Jose, Costa , SJ
Team Lead - Android Developer
1 2023 - 09.2024
Job overview
- For Guatemalan company focused on developing retail application, which facilitates sales and delivery of items requested by clients.
- This app is actively utilized in Guatemala, El Salvador, Ecuador, Jamaica, and Peru.
- It is designed with 'offline first' paradigm to accommodate numerous locations in these countries that lack access to mobile data or internet in general.
- For data synchronization, Realm is used when device reconnects to internet.
- Application developed using latest technologies, including Jetpack Compose, Model-View-Intent (MVI) architecture, and Clean Architecture, dependency injection, Realm databases, Room for local storage, mappers between local data and synchronous data, unit testing with JUnit, modularization into the app.
- For Android management and deployment, we use tools such as Bitrise for CI and CD.
- As far as project growth, abilities as leader became in order. Worked as Team Lead for Delivery mobile team, actively coordinating releases, daily meetings, and follow-up of most important topics during sprints.
Infoya CA - Home Depot CanadaSan Jose, Costa , SJ
Software Engineer
01.2022 - 01.2023
Job overview
- Having great communication with teams in Canada, understanding their needs, based currently on Mobile Development on Android Application for Home Depot, as a Software Engineer in regular responsibilities, working for the eCommerce Application, supporting the app, solving bugs and implementing new features and functionalities all this in Kotlin and Java, for those parts in the code that still in Java, have been doing lot of refactoring to implement the views and logic to Kotlin and Jetpack Compose, for this before helping to migrate the app to the newest technologies for the Android app, and helping using other technologies such as XML files, Retrofit for Api calls, Dagger Hilt for dependency injection, Live Data, Modularity, mobile paradigms such as OOP and and architecture like MVC, MVVM and MVP
- For version control, GitHub and Bitbucket, great understanding and managing of branches and different uses for them
- Experience on Debugging the apps and doing Testing such as JUnit for android, implementing mocks and testing functions from view Models and different parts of the app.
Beyond DevelopmentSan Jose, Costa , SJ
Android Developer - IOS Developer
1 2021 - Current
Job overview
- Working with the newest technologies, implementing new paradigms into development, such as MVVM and MVI for mobile development, currently offering the new game changer as KMP.
- The database for the users has been able to work using Firebase, as prior service also works for the Android platform.
- For Android, applying new methods such as Jetpack Compose and the components that this new paradigm has included, Navigation Compose, loading and viewing the information using libraries such as Room, and Dagger Hilt, all UI has been developed by ourselves and we're very comfortable with the results so far.
- The application has been developed using most of the solid principles as we can use, trying to connect everything using clean code, reusing as much code as possible. The API information from all the information is going to come is in progress, but it is planned to use the MVVM paradigm for a better structure of the code.
- The application is still in development and reviews. The estimated date of release is for June or July of 2022.
Education
Universidad AmericanaSan Joise
from Mobile Development
01.2019 - 12.2023
University Overview
Universidad CenfotecSan Jose
Professional degree on Mobile Development
03.2021 - 09.2021
University Overview
Universidad FidelitasSan Jose
Professional Certificacion Networking CCNA
01.2018 - 06.2019
University Overview
Colegio Universitario Boston
Network and Telecomunications Technician
01.2017
University Overview
University Overview
- Python, 2019
- Frontend Dev (Udemy), 2020
- SwiftUI (Udemy), 2021
- Android Coroutines (Udemy), 2021
- Android Jetpack Compose (Udemy), 2021
- MVI Architecture with Jetpack Compose (Udemy), 2023
Skills
Kotlin
Languages
Spanish
Bilingual or Proficient (C2)
English
Advanced (C1)
Portuguese
Upper intermediate (B2)
Availability
See my work availability
Not Available
Available
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Software
Kotlin
Jetpack Compose
Kotlin Multiplatform
Android Studio
Android JDK
Quote
"Do not pray for easy lives. Pray to be stronger men"
Certification
Professional Mobile Developer Program
Timeline
Software Engineer
Infoya CA - Home Depot Canada
01.2022 - 01.2023
Professional Mobile Developer Program
06-2021
Universidad Cenfotec
Professional degree on Mobile Development
03.2021 - 09.2021
Universidad Americana
from Mobile Development
01.2019 - 12.2023
Universidad Fidelitas
Professional Certificacion Networking CCNA
01.2018 - 06.2019
Colegio Universitario Boston
Network and Telecomunications Technician
01.2017
Team Lead - Android Developer
Apex Digital
1 2023 - 09.2024
Android Developer - IOS Developer
Beyond Development
1 2021 - Current
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