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: Network Planning And Design, Microsoft Azure, Network Security, Network Troubleshooting, Network Architecture, Network Administration, Firewall, Computer Networking, Network Monitoring, Virtual Private Networks (VPN), Virtual Networking, Role-Based Access Control (RBAC), General Networking, Hybrid Cloud Computing, Data Migration
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Analysis, Matplotlib, Regression Analysis, Statistical Modeling, Data Science, Data Analysis, Data Visualization, Pandas (Python Package), Anomaly Detection, Time Series Analysis and Forecasting, Data Visualization Software, Data Collection, Data Manipulation, Application Programming Interface (API)
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Prompt Engineering, Generative AI, Code Review, Debugging, Responsible AI, Machine Learning Methods, Artificial Intelligence and Machine Learning (AI/ML), Maintainability, Data Cleansing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IT Security Architecture, Incident Response, Endpoint Security, Zero Trust Network Access, Risk Analysis, Network Security, Risk Mitigation, Cyber Governance, Compliance Auditing, Event Monitoring, Application Security, Cyber Security Policies, Cyber Risk, Computer Security, Governance, Data Security, Information Systems Security, Infrastructure Security, Mobile Security, Risk Management
Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Linux, Linux Administration, Linux Servers, Linux Commands, Operating System Administration, Systems Administration, Virtualization, Cloud Computing, Display Devices, Cybersecurity
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Logistic Regression, Model Evaluation, Statistical Inference, Predictive Analytics, R Programming, Statistical Modeling, Statistical Methods, Biostatistics, Regression Analysis, Statistical Analysis, Statistics, Statistical Hypothesis Testing, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Strategic Marketing, Marketing Analytics, Marketing Strategies, Digital Marketing, Consumer Behaviour, Data Visualization, Sales Strategy, Marketing, Performance marketing, Marketing Strategy and Techniques, Marketing Operations, Data-Driven Decision-Making, Digital Media Strategy, Data Visualization Software, Customer Analysis, Customer Engagement, Market Analysis, Key Performance Indicators (KPIs), Analytics, Data Analysis
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Application Security, System Programming, Secure Coding, C++ (Programming Language), C (Programming Language), Debugging, Interoperability, File I/O, Data Validation
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Web Content Accessibility Guidelines, Web Design, Usability, HTML and CSS, User Interface (UI), Semantic Web
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Power BI, Data Modeling, Data Transformation, Business Requirements, Data Presentation, Star Schema, Data Visualization Software, Snowflake Schema, Relational Databases, Database Design, Data Import/Export, Data Cleansing, Requirements Analysis, Data Analysis Expressions (DAX), Business Intelligence, Data Analysis, Stakeholder Management, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Diagram Design, Program Development, Program Management, Project Design, Process Management, Business Process, Timelines, Process Flow Diagrams, Agile Project Management, Project Management Software
Intermediate · Guided Project · Less Than 2 Hours