Codio
Skills you'll gain: Apache Maven, JSON, JUnit, Java Programming, Java, Restful API, Integrated Development Environments, Programming Principles, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Android Studio, Android Jetpack, Android Development, Kotlin, Animations, Mobile Development, UI Components
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: IntelliJ IDEA, Integrated Development Environments, Java, Development Environment, Debugging, Object Oriented Programming (OOP), Programming Principles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Application Deployment, Mobile Development, ChatGPT, User Interface and User Experience (UI/UX) Design, Android Jetpack, iOS Development, JSON, UI Components, Database Application, Application Development, Development Environment, Context Management, Data Storage, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Command-Line Interface, Go (Programming Language), Package and Software Management, Programming Principles, Program Development, Data Structures, Debugging
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Kotlin, Application Development, Software Documentation, Programming Principles, Data Validation, Computational Logic, Data Mapping
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Regression Testing, Debugging, Unit Testing, Test Case, Code Review, Root Cause Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Swift Programming, Mobile Development, Apple iOS, Apple Xcode, Application Development, UI Components, Data Persistence, User Interface (UI), Debugging, User Interface (UI) Design, Data Structures, Data Modeling, Animations
Beginner · Course · 3 - 6 Months

Skills you'll gain: Kotlin, IntelliJ IDEA
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Maintainability, Code Review, Software Architecture, Software Design, Object Oriented Design, Debugging, Testability, Programming Principles, Scalability
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Azure DevOps Pipelines, Infrastructure as Code (IaC), Azure DevOps, CI/CD, Cloud Deployment, Microsoft Azure, Continuous Deployment, Cloud-Native Computing, Infrastructure As A Service (IaaS), Application Deployment, Containerization, Cloud Management, Cloud Computing Architecture, GitHub, Scalability, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Version Control, Debugging, Microsoft Visual Studio, Integrated Development Environments, Software Development Tools, Development Environment, Software Development
Intermediate · Guided Project · Less Than 2 Hours