Carlos Vallejo

Carlos Vallejo

Bogota,D.C., Colombia

11,821

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Skills & Experience

  • Company

    Ericsson

  • Job Title

    Solution Architect

  • Spoken Languages

    • Spanish
    • English
  • Looking for work

    Yes

134 Achievements

  • Docker Use Cases
  • Diving into Web Development
  • Using Java's Built-In Annotations
  • PHP on the Web
  • Daily Exercise Program
  • Unit Converter
  • Getting to Know PHP
  • Managing Content in WordPress
  • What Is WordPress?
  • File Uploads and Entity Updates in Spring + Hibernate
  • User Messages in Spring
  • Getting Started with CRUD in Spring + Hibernate
  • Data-Driven Application Design
  • Integrating Hibernate with Spring
  • Persisting Data with Hibernate
  • Getting Started with Hibernate
  • Data Persistence & ORMs
  • Using the MVC Architecture with Spring
  • Modeling, Storing, and Presenting Data with Spring
  • Creating Spring Controllers and Thymeleaf Views
  • Letter Game App
  • Number Game App
  • Shopping List App
  • Logic in Python
  • Python Data Types
  • Python For Beginners
  • Spring Components and Configuring Our App
  • Setting Up Your Local Environment for Spring Development
  • GET and POST Requests in a Browser
  • Introduction to HTTP
  • Adding a New Web Page
  • Make It Beautiful with CSS
  • HTML: The Structural Foundation of Web Pages and Applications
  • Getting Familiar with HTML and CSS
  • Encapsulation and Arrays
  • Inheritance
  • Methods
  • Object-Oriented Programming
  • Perfect
  • Perform
  • Console I/O
  • Prepare and Plan
  • Modelling Solitaire
  • Hello Kotlin!
  • UI Testing with Espresso
  • Unit Testing - Now Featuring Robolectric!
  • Unit Testing
  • What to Test
  • How To Test
  • Why Test
  • Local Notifications
  • Broadcast Receivers
  • Implicit Intents and Intent Filters
  • For All Intents and Purposes
  • But Wait There's More!
  • Bound Services
  • Introducing Services
  • Threads in Android
  • Interacting with Google+ APIs
  • Connecting to Play Services
  • Interacting with Your API
  • Adding Play Services to Your App
  • Migrating a SQLite Database
  • CRUD Operations with SQLite
  • Using SQLite for Structured Data
  • Key-Value Saving with SharedPreferences
  • File Storage
  • Introduction to Data Persistence
  • Tablet Time
  • Ingredients and Directions
  • Managing Fragments
  • Introducing Fragments
  • Activity Transitions: Advanced Topics
  • Shared Element Transitions
  • Transitions Framework
  • Animation Basics
  • The Project
  • Introducing SharedPreferences
  • The Activity Lifecycle
  • Acting on List Item Taps
  • Lists with RecyclerViews
  • Using Parcelable Data
  • Custom ListViews
  • Standard ListViews
  • Updating the Data Model
  • Hooking up the Model to the View
  • Building the Weather UI
  • Working with JSON
  • Concurrency and Error Handling
  • Networking
  • Exploring an API
  • Themes and Compatibility
  • Using Styles in Layouts
  • The Rest of the Story
  • Finishing the User Interface
  • The Model-View-Presenter Pattern
  • Intents and Multiple Activities
  • Tuning the User Interface
  • User Input in Android
  • Testing and Debugging
  • Workflows
  • Event Planning
  • Build a Pomodoro App
  • Working With Remote Repositories
  • Design a Better App
  • Graphical User Interfaces
  • Merging
  • Improving Our Code
  • Advanced Tooling
  • Basic Android Programming
  • IDE Exploration
  • Branches
  • How it Works
  • Creating the Screen Layout
  • Getting Started With Git
  • Getting Started with Android
  • Efficiency!
  • Exploring the Java Collections Framework
  • Organizing Data
  • Getting There
  • Why Version Control Matters
  • Installing Programs
  • Delivering the MVP
  • Environment and Redirection
  • Creating the MVP
  • Console Processes
  • Harnessing the Power of Objects
  • Meet Objects
  • Console Users and Permission
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Moving Around in the Console
  • Newbie