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.

KodeKloud
Skills you'll gain: Kubernetes, Microservices, Containerization, Cloud-Native Computing, Docker (Software), DevOps, Application Deployment, Cloud Computing Architecture, YAML, Virtual Networking, Scalability, Command-Line Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Incident Response, IT Security Architecture, Secure Coding, Application Security, Identity and Access Management, Information Systems Security Assessment Framework (ISSAF), Security Testing, Continuous Monitoring, Information Systems Security, Network Security, Security Strategy, Zero Trust Network Access, Security Awareness, Security Information and Event Management (SIEM), Risk Management Framework, Disaster Recovery, Security Controls, Cybersecurity, Enterprise Architecture
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Access, Database Design, Relational Databases, Object Oriented Programming (OOP), JUnit, SQL, Java, Java Programming, Database Management, Databases
Beginner · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Simulation and Simulation Software, Control Systems, Model Based Systems Engineering, Engineering Design Process, Mathematical Modeling, Engineering Analysis, Systems Analysis, Test Case, Systems Design, Performance Tuning, Automation Engineering, Matlab
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Human Computer Interaction, Embedded Systems, Prototyping, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Usability, HTML and CSS, Real-Time Operating Systems, Internet Of Things, jQuery, Mobile Development, Telecommunications, Cross Platform Development, Artificial Intelligence and Machine Learning (AI/ML)
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Fraud detection, AI Personalization, Predictive Analytics, Financial Services, Personalized Service, Financial Trading, Financial Reporting, FinTech, Forecasting, Compliance Management, Artificial Intelligence, Risk Analysis, Emerging Technologies, Automation
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Generative AI Agents, Agentic systems, LLM Application, Tool Calling
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Large Language Modeling, LLM Application, OpenAI API, Trend Analysis, Real Time Data, Analytics, Business Marketing, Program Development, Prompt Engineering, Business Strategy, Generative AI, ChatGPT, Technology Roadmaps, Market Trend, Artificial Intelligence and Machine Learning (AI/ML), Artificial Neural Networks, Content Marketing
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Power Electronics, electromagnetics, Electrical Engineering, Electronic Systems, Electronics, Electronics Engineering, Electrical Systems, Computer-Aided Design, Technical Design, Control Systems, Simulation and Simulation Software, Design Specifications
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Chemical Engineering, Chemistry, Thermal Management, Mechanical Engineering, Process Engineering, Engineering Calculations, Engineering Analysis, Differential Equations, Applied Mathematics, Simulation and Simulation Software, Open Source Technology
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Network Performance Management, Virtual Networking, Performance Tuning, Network Troubleshooting, Virtual Private Networks (VPN), Load Balancing, Performance Testing, Network Administration, Google Cloud Platform, VPN Clients, Network Analysis, Virtual Machines, Network Security
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Security, Data Migration, Data Governance, Extract, Transform, Load, Cloud Storage, Data Architecture, Data Management, Data Integration, Data Storage, Enterprise Architecture, Data Quality, Personally Identifiable Information, Data Modeling, Incident Response, Security Controls, Information Privacy, Data Infrastructure, Data Warehousing, Threat Detection, Law, Regulation, and Compliance
Advanced · Specialization · 1 - 3 Months