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.

28DIGITAL
Skills you'll gain: Closing (Sales), Cold Calling, Customer Analysis, Selling Techniques, Sales Process, Target Market, Marketing, Market Analysis, General Sales Practices, Marketing Strategy and Techniques, Marketing Strategies, Competitive Analysis, Marketing Planning, Strategic Marketing, Outbound Calls, Market Opportunities, Sales, Growth Strategies, Entrepreneurship, Digital Marketing
★ 4.4 (159) · Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: iOS Development, Apple iOS, User Interface (UI), Model View Controller, Core Data (Software), User Interface (UI) Design, UI Components, User Interface and User Experience (UI/UX) Design, Responsive Web Design, Mobile Development, Human Computer Interaction, Software Design, Geospatial Mapping, Animations, Data Persistence
★ 4.5 (189) · Mixed · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Matplotlib, Plot (Graphics), Pandas (Python Package), Seaborn, SQL, Scientific Visualization, Data Visualization, Data Preprocessing, Jupyter, Data Manipulation, NumPy, Data-Driven Decision-Making, Regression Analysis, Accounting, Applied Machine Learning, Data Processing, Database Management, Query Languages, Data Compilation, Python Programming
★ 4.4 (118) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Scalability, Role-Based Access Control (RBAC), ASP.NET, Authentications, Secure Coding, Load Balancing, Microsoft Copilot, Software Architecture, Performance Tuning, Data Security, Back-End Web Development, API Design, .NET Framework, Restful API, C# (Programming Language), Application Security, Application Development, Multi-Factor Authentication, Process Optimization, Debugging
★ 4.5 (95) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Estimation, Model Evaluation, Simulations, Applied Mathematics, Laboratory Testing, Matlab, Numerical Analysis, Failure Analysis, Electric Power Systems, Mathematical Modeling, Model Optimization, Mathematical Software, Laboratory Research, Scripting, Statistical Process Controls, Scripting Languages, Materials science, Algorithms
★ 4.7 (158) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Engineering, Data Pipelines, Data Transformation, Extract, Transform, Load, Data Integration, Data Warehousing, Software Engineering Tools, Data Import/Export, Stored Procedure, Data Sharing, SQL, Data Analysis, GitHub, Microsoft Visual Studio, Command-Line Interface, Application Deployment
★ 4.7 (146) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: SQL, Query Languages, Data Access, Database Software, Database Design, Relational Databases, Problem Solving
★ 4.6 (335) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Color Theory, User Interface and User Experience (UI/UX) Design, Logo Design, Typography, User Interface (UI), Interaction Design, Figma (Design Software), Adobe Illustrator, Design Reviews, Wireframing, User Interface (UI) Design, Marketing Materials, Marketing Design, Layout Design, Usability, Graphic and Visual Design, Graphic Design, AI powered creativity, Peer Review, Adobe Photoshop
★ 4.5 (112) · Beginner · Professional Certificate · 3 - 6 Months

Amazon
Skills you'll gain: File I/O, Object Oriented Programming (OOP), Object Oriented Design, Code Reusability, Java Programming, Java, Software Design, File Management, Data Persistence
★ 4.3 (92) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Agentic systems, Generative AI Agents, LLM Application, AI Integrations, Tool Calling, Large Language Modeling, Software Design Patterns, Memory Management
★ 4.7 (107) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Excel, Pivot Tables And Charts, Excel Formulas, Spreadsheet Software, Business Reporting, Data Visualization, Interactive Data Visualization, Excel Macros, Data Presentation, Dashboard, Forecasting, Management Reporting, Analytics, Advanced Analytics, Data Analysis, Data Visualization Software, Business Analytics, Data Validation, Analysis, Data Entry
★ 4.8 (146) · Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Capital Budgeting, Risk Mitigation, Risk Analysis, Project Risk Management, Risk Management, Project Finance, Financial Analysis, Cash Flows, Business Valuation, Cost Benefit Analysis, Financial Modeling, Return On Investment, Depreciation, Financial Statements, Business Metrics, Spreadsheet Software, Microsoft Excel
★ 4.8 (247) · Intermediate · Course · 1 - 3 Months