Joel Torrejón

• Focus on performance to improve speed and reduce app size.
• Integrate push notifications to large customer base.
• Integrate the app for Point of sale(POS) devices on payments around LATAM.
• Integrate E2E testing.

Technologies used:

• React-Native
• Redux
• Android
• Detox
• Firebase

• Involved on Design and Develop and internal app to manage a church of 30k members.
• Lead 2 projects currently in production based on Python/Django.
• Assume Infraestructure Manager role.
• Colaborate on data analisis and improve SQL queries of high volume databases.

Technologies used:

• React Native
• Java
• Python
• Django
• PostgreSQL
• AWS

• Involved from Design, Develop and Launch an app for taxi drivers.
• Started to manage development teams.
• Improve skills for elaborate finalcial costs of Software products.
• Learn about design sprints, define product goals on project and deliverables.

Technologies used:

• React Native
• Android
• Ruby
• Rails
• PostgreSQL

• Develop Web app to German Education Company.
• Improve web architectural skills.
• Init to use agile methodologies.
• Learned about Continuous Integration. (Ruby, Capistrano, Bitbucket, AWS)

Technologies used:

• Ruby
• Rails
• React JS
• MySQL
• AWS

This project is an app for sell tickets for events in Bolivia, this project is available on Android and iOS with more than 30k users and transactions all year round, I was responsible for the app and the backend service.

Technologies used:

• React-Native
• Redux
• Python
• Django

This was my first project in React-Native, an app to provide pet care services, it is separated into two apps, the customer and the provider services.

Technologies used:

• React-Native
• Redux
• Firebase