Summary

Expertise

Project Highlights

Education

Agency

JB

English:

Upper Intermediate

Joel Colmenares B.

vetted by Youteam

Vetted by YouTeam

Mexico

UTC -06:00

America/Mexico_City

English:

Upper Intermediate

Senior developer with over 7 years of experience building mobile apps using Kotlin and Java.

As a senior mobile developer, I have accomplished the following: - Development of tools for Digital Resource Education for Kids with visual impairments - I improved the memory consumption and performance of the UI of the UNICEF Kid Power application. - I optimized the code quality of the Sales Force Project - Belcorp reducing the crashes reported by customers. - I accomplished the development of the animation of a marker between polygons of Google Maps for the Servitrack GPS application.

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Check if Joel Colmenares is available

Expertise

Years of commercial development experience

7 years of experience

Core technologies

Android 8 years
Kotlin 6 years
Java 2 years
Python 1 year

Other technologies

Ionic Framework
Mobile UI Design
Angular 2x
Retrofit
RxJava
MVP patterns
MVVM patterns
Sonarqube

Project Highlights

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Android Developer

Walmart Identity

Feb `23 - Present

2 years

Walmart

Support and develop new features for the authentication module of Walmart application

Responsibilities & achievements

Develop and support features related to the authentication module

Kotlin
Navigation System Implementation
Retrofit
MVVM patterns
GraphQL
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Android developer

DMED

Dec `21 - Jan `22

Disney

Support the team with the development of new features and existing ones.

Responsibilities & achievements

As a Tech Lead of the Android global team, I guided the Jrs. developers to improve their tech and soft skills while I was working as an Android developer for Disney projects.

Kotlin
Mobile UI Design
RxJava
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Android developer

FIS

Jul `21 - Feb `22

7 months

FIS

Develop the new application for FIS Account using the Ionic framework as a hybrid tech.

Responsibilities & achievements

As part of the development team, I developed the account main feature and the auth-encryption framework to ensure, and provide the user data to other features by applying design patterns such as factory, template, and singleton, also I applied SOLID principles and the basic theory of Atomic design to achieve a scalable and modular feature as a plugin for the whole project. Besides that, I supported the team with other features of the data of the plugin developed.

AngularJS
Ionic Framework
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Android developer and consultant

Greendot

Mar `21 - Jun `21

3 months

Greendot Corporation

The android team from Greendot Corporation asked for a deep analysis of the project, feedback for their development, and a new proposal from it.

Responsibilities & achievements

Review, analyze, and diagnose the code quality and the weaknesses that the Android application project had to provide appropriate feedback to the development team. This is with the goal of applying feature flags in mobile projects.

Kotlin
MVP patterns
MVVM patterns
Sonarqube
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Android developer

Consultants

Nov `20 - Dec `20

Belcorp

The Consultants' projects needed to add a new feature (Gana+) to its application.

Responsibilities & achievements

Developed a new custom view that will replace the old ones applying new and better widgets from android in order to make it reusable through the application whenever it's needed.

Java
Kotlin
Dagger 2
Retrofit
MVP patterns

Education

Higher education in Computer Science

Agency

Mobile and Web development agency #2704

50-100

GMT-6

Mexico City/Mexico

Core Expertise

Agile
AngularJS
ASP.NET
AWS
Azure
Big Data Architects
C#
CodeIgniter
Django
Ionic
Java
JavaScript
Kotlin
Kubernetes
MongoDB
.NET
Node.js
Objective-C
Oracle SQL
PHP
PL/SQL
PostgreSQL
Python
React.js
React Native
Spring
SQL
SQL Server
TypeScript
UI
Unity or Unity3D
UX
Artificial Neural Networks
Bootstrap
Laravel Framework
Machine learning Engineer
Oracle SOA Suite
Scrum
Swift
Mobile UI Design
Angular 2x
Docker
Project Manager
Scrum Master
Spring Boot
Angular UI Bootstrap
Angular Material
Microservices
Google Cloud Platform
AR/VR

Industries

Business & Productivity, Logistics & Transportation, E-Commerce & Retail, Information services & Technologies, Construction & Real estate, Travel & Tourism, Augmented reality, SaaS, Energy, Telecommunication, Conversational automation, Management System & Automation

Want to hire this engineer?

Check if Joel Colmenares is available