Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Skills you'll gain: Selenium (Software), Git (Version Control System), GitHub, Jenkins, Test Automation, CI/CD, Test Data, Test Script Development, Test Tools, Software Testing, IntelliJ IDEA, Test Case, Development Environment, Application Frameworks, Apache Maven, Maintainability, Debugging
Advanced · Course · 3 - 6 Months

Coursera
Skills you'll gain: Team Building, Resilience, Emotional Intelligence, Leadership, Team Management, Empathy & Emotional Intelligence, Team Motivation, Conflict Management, Collaboration, Communication, Adaptability, Change Management
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: API Design, Application Programming Interface (API), Postman API Platform, API Testing, Software Documentation, Software Design Documents, OAuth, CI/CD, .NET Framework, Web Services, Authentications
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Istio, Kubernetes, Hybrid Cloud Computing, Multi-Cloud, Cloud-Native Computing, Cloud Computing Architecture, Google Cloud Platform, Cloud Infrastructure, Configuration Management, Microservices, Containerization, Authentications, Load Balancing, Network Planning And Design, System Monitoring, Git (Version Control System), Real Time Data, Network Routing, Network Security, Authorization (Computing)
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Istio, Hybrid Cloud Computing, Kubernetes, Cloud-Native Computing, Multi-Cloud, Cloud Computing Architecture, Google Cloud Platform, Microservices, Containerization, Network Planning And Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, API Testing, Restful API, Software Quality Assurance, Software Engineering, Test Script Development, Java, Data Mapping, Software Testing, Test Case, Test Data
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Puppet (Configuration Management Tool), Software-Defined Networking, Network Administration, Security Awareness, Chef (Configuration Management Tool), Information Systems Security, Virtual Private Networks (VPN), JSON, Authentications, Computer Networking, Authorization (Computing), Automation, Configuration Management, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Video Game Development, Game Design, Debugging, Programming Principles, Animations, Scripting Languages, Event-Driven Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Snowflake Schema, Data Pipelines, Apache Airflow, Data Security, Data Governance, Extract, Transform, Load, Apache Kafka, Performance Tuning, Data Warehousing, Amazon S3, Amazon Web Services, Real Time Data, SQL
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Apple iOS, Responsive Web Design, Swift Programming, Apple Xcode, Mobile Development, User Interface (UI) Design, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Statistical Process Controls, Statistical Hypothesis Testing, Process Improvement, Lean Methodologies, Kaizen Methodology, Process Capability, Six Sigma Methodology, Risk Analysis, Quality Improvement, Process Analysis, Statistical Analysis, Statistical Methods, Risk Management, Business Process, Sample Size Determination, Data Collection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, AI Security, Amazon Web Services, Data Ethics, Generative AI, AWS SageMaker, Cloud Security, MLOps (Machine Learning Operations), Data Security, Data Governance, Artificial Intelligence, Encryption, Public Cloud, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks