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.

Skills you'll gain: Presentations, Google Sheets, Google Workspace, Productivity Software
★ 4.7 (24) · Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Data Analysis Expressions (DAX), Customer Insights, Power BI, Data Modeling, Customer Analysis, Dashboard, Data Transformation, Dashboard Creation, Data Wrangling, Data Import/Export, Data Manipulation, Database Design, Business Intelligence, Interactive Data Visualization, Data Integration, Star Schema, Time Series Analysis and Forecasting, Data Cleansing, Relational Databases, Data Visualization Software
★ 4.8 (14) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Hardware Troubleshooting, Computer Hardware, Digital Transformation, Network Troubleshooting, Technical Support, Technical Support and Services, Networking Hardware, Servers, Network Security, Server Administration, Data Security, Hardware Architecture, System Configuration, IT Infrastructure, Data Storage Technologies, Data Storage, Computer Networking
★ 4.9 (21) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Query Languages, Software Installation, Performance Tuning, Distributed Computing, Scripting, Data Modeling, Application Programming Interface (API), Cloud Deployment
★ 3.6 (14) · Beginner · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: UI Components, Interactive Design, User Interface (UI), User Interface (UI) Design, Event-Driven Programming, Application Design, Development Environment, Application Development, Web Applications, Application Frameworks, Software Installation, Python Programming, Web Frameworks
★ 4.5 (25) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Star Schema, Data Analysis Expressions (DAX), Power BI, Snowflake Schema, Data Modeling, Model Optimization, Performance Tuning, Business Intelligence, Data Analysis
★ 3.8 (14) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Software Architecture, Software Design, System Design and Implementation, System Programming, Systems Analysis, Embedded Systems, Requirements Analysis, Unix, Operating Systems, Verification And Validation, Real Time Data, Performance Tuning, Performance Testing, System Monitoring, Computer Vision, Image Analysis
★ 3.9 (9) · Advanced · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Object Oriented Design, Java Programming, Java, Object Oriented Programming (OOP), Programming Principles, Software Design, Education Software and Technology, Computer Programming, Program Development, Debugging, Data Structures, Algorithms
★ 4.8 (14) · Beginner · Course · 1 - 3 Months

Skills you'll gain: JSON, Application Programming Interface (API), Application Development, Data Access, Restful API, Python Programming, Program Development, User Interface (UI)
★ 4.2 (13) · Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Object-Relational Mapping, Java Platform Enterprise Edition (J2EE), Database Design, Data Access, Data Persistence, Java, Relational Databases, Data Mapping, Java Programming, JUnit, SQL, Query Languages, Software Versioning
★ 5 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Root Cause Analysis, Correlation Analysis, Regression Analysis, Statistical Methods, Statistics, Data Collection, Descriptive Statistics, Statistical Hypothesis Testing, Data Literacy, Probability & Statistics, Statistical Analysis, Process Analysis, Six Sigma Methodology, Lean Six Sigma, Quantitative Research, Business Process Improvement, Data Analysis, Process Improvement, Statistical Inference, Operational Efficiency
★ 4.2 (19) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Box Plots, Plot (Graphics), Data Visualization, Ggplot2, Data Visualization Software, Statistical Visualization, Scatter Plots, Histogram, Data Analysis, Graphing, Python Programming
★ 4.6 (16) · Intermediate · Guided Project · Less Than 2 Hours