Software testing courses can help you learn test planning, test case design, automated testing, and performance testing. You can build skills in identifying bugs, writing effective test scripts, and using various testing methodologies. Many courses introduce tools like Selenium for automation, JUnit for unit testing, and JIRA for issue tracking, showing how these skills apply in real-world software development environments.

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Responsible AI, Social Media Analytics, Graph Theory, Machine Learning Methods, R (Software), Machine Learning, Machine Learning Software, Model Training, Machine Learning Algorithms, Model Optimization, Model Evaluation, Social Sciences, Statistical Analysis, Amazon Web Services, Tensorflow, Data Ethics, Large Language Modeling, Applied Machine Learning
★ 4.5 (19) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Development Environment, Computer Programming, Microsoft Visual Studio, Computer Programming Tools, Integrated Development Environments, Programming Principles, Apple Xcode, Software Installation, Performance Tuning, Debugging
★ 4.2 (26) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Role-Based Access Control (RBAC), Azure Active Directory, Microsoft Azure, Active Directory, Authorization (Computing), Identity and Access Management, User Provisioning, Cloud Management, Cloud Security, User Accounts, Cloud Storage, Data Security, Data Storage, Key Management, Data Storage Technologies, Continuous Monitoring, Encryption
★ 3.7 (21) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Exploratory Data Analysis, Data Analysis, Classification Algorithms, Data Preprocessing, Model Training, Scikit Learn (Machine Learning Library), Predictive Modeling, Data Import/Export, Applied Machine Learning, Data Visualization Software, Machine Learning, Risk Analysis
★ 4.7 (44) · Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Cloud Deployment, Microsoft Azure, Cloud Management, Application Deployment, Cloud Computing, Cloud Development, Windows PowerShell, Cloud Services, Infrastructure As A Service (IaaS), Platform As A Service (PaaS), Resource Management, Command-Line Interface, IT Automation, Scripting, Software Installation, Verification And Validation
★ 5 (21) · Intermediate · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Application Specific Integrated Circuits, Computer Systems, System Configuration, System Design and Implementation, Computer Architecture, Hardware Architecture, Computer Hardware, Embedded Systems, Computational Logic, Performance Tuning
★ 4.6 (37) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LangChain, JavaScript Frameworks, LLM Application, Large Language Modeling, AI Orchestration, Python Programming
★ 4.7 (26) · Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Back-End Web Development, PostgreSQL, Database Development, Python Programming, Restful API, SQL, API Design, Object-Relational Mapping, Application Programming Interface (API), Database Management, Databases, Data Validation, Development Environment
★ 4 (21) · Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: SQL, Relational Databases, Database Management, Database Application, Query Languages, Databases, Data Manipulation, Database Management Systems
★ 4.5 (31) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: SQL, Database Management, Relational Databases, Database Systems, Databases, Database Development, Database Theory, Performance Tuning, Database Design, Database Architecture and Administration, Stored Procedure, Database Application, Microsoft Copilot, Object-Relational Mapping, Query Languages, Data Modeling, Transaction Processing, Data Access, Data Persistence, .NET Framework
★ 4.8 (19) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Cloud Services, Cloud Computing, Cloud Infrastructure, Software-Defined Networking, Virtual Networking, Wide Area Networks, Cloud Engineering, Network Architecture, Cloud Computing Architecture, Cloud Platforms, Virtualization and Virtual Machines, Computer Networking, Virtualization, Load Balancing, Data Centers, Network Infrastructure, Terraform, Virtual Machines, Hybrid Cloud Computing, Google Cloud Platform
★ 4.8 (27) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, OAuth, API Design, Application Programming Interface (API), Node.JS, Software Documentation, JavaScript Frameworks, Frontend Integration, Web Services, Middleware, Authentications, JSON, Web Frameworks, Server Side, Back-End Web Development, Authorization (Computing)
★ 3.9 (24) · Mixed · Course · 1 - 4 Weeks