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.

Technical University of Denmark (DTU)
Skills you'll gain: Energy and Utilities, Chemistry, Sustainable Engineering, Sustainable Development, Plant Operations and Management, Chemical Engineering, Process Engineering, Thermal Management, Environmental Engineering, Analytical Chemistry, Materials science, Analytical Testing, Laboratory Research, Engineering Calculations, Mathematical Modeling, Experimentation
★ 4.8 (27) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Penetration Testing, Threat Management, Threat Detection, Cyber Security Assessment, Cybersecurity, Cyber Security Strategy, Cyber Operations, Vulnerability Scanning, Cyber Attacks, Computer Security, Vulnerability Assessments, Security Strategy, Cyber Security Policies, Network Security, Network Analysis, Network Protocols
★ 4.8 (16) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Quantitative Research, Data-Driven Decision-Making, Descriptive Statistics, Data Analysis, Statistical Reporting, Statistics, Research Design, Statistical Analysis, Microsoft Excel, Descriptive Analytics, Research Methodologies, Statistical Methods, R (Software), Research, R Programming, Data Collection, Research Reports, Correlation Analysis, Data Ethics
★ 4.4 (18) · Intermediate · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Generative Engine Optimization (GEO), Keyword Research, Blogs, Search Engine Optimization, Web Analytics and SEO, Copywriting, Content Optimization, Web Analytics, Large Language Modeling, Search Engine Marketing, Web Content, Google Analytics, Google Gemini, LLM Application, Frontend Performance, Web Presence, Digital Marketing Tools, Marketing, Digital Marketing, Marketing Planning
★ 4.6 (20) · Beginner · Specialization · 3 - 6 Months

L&T EduTech
Skills you'll gain: Machine Learning Algorithms, Computer Vision, Applied Machine Learning, Image Analysis, Civil Engineering, Classification Algorithms, AI Enablement, Artificial Intelligence, Machine Learning Software, Electrical Substation, Machine Learning, AI literacy, Tensorflow, Construction Engineering, Convolutional Neural Networks, Deep Learning, PyTorch (Machine Learning Library), Artificial Neural Networks, Electric Power Systems, Electrical Engineering
★ 4.8 (16) · Intermediate · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: Data Presentation, Data Entry, Data Processing, Data Science, Organizational Skills, Business Analytics, Data Management, Business Intelligence, Microsoft 365, Productivity Software, Record Keeping, Customer Data Management, Productivity, Financial Analysis, Marketing Planning, Project Management, Event Planning
★ 4.3 (11) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Security, Real Time Data, Digital Transformation, Cloud Management, Cloud Solutions, Serverless Computing, Google Cloud Platform, Cloud Infrastructure, Artificial Intelligence and Machine Learning (AI/ML), Cloud Platforms, Data Security, Application Programming Interface (API), Looker (Software), Cloud Deployment, Public Cloud, Model Training, IT Security Architecture, Business Intelligence, Cloud Services, Cloud Computing
★ 4.8 (45) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Computational Logic, Theoretical Computer Science, Verification And Validation, Algorithms, Data Structures
★ 4.7 (26) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Middleware, Node.JS, Model View Controller, Development Environment, Application Frameworks, Application Development, JavaScript Frameworks, Web Applications, Web Development Tools, Server Side, Network Routing, Service Oriented Architecture, Android Development
★ 3.6 (36) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Wireless Networks, C++ (Programming Language), C and C++, Computer Programming, Control Systems, Interactive Design, Software Installation, Electronic Components, Electronic Hardware, Telecommunications, Electronic Systems, Code Reusability, Hardware Design, Electronics, Program Development, Communication Systems, Programming Principles, Display Devices
★ 4.8 (20) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: SQL, Query Languages, Database Design, Performance Tuning, Database Management, Databases, PostgreSQL, Data Access
★ 3.2 (33) · Intermediate · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: Secure Coding, Application Security, Exploitation techniques, Web Applications, Javascript, Web Development, Node.JS, Java Programming
★ 4.6 (37) · Intermediate · Course · 1 - 4 Weeks