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.

Johns Hopkins University
Skills you'll gain: Package and Software Management, Code Review, Open Source Technology, Code Reusability, GitHub, Scientific Methods, Software Documentation, Science and Research, Technical Documentation, Informatics, Software Versioning, R (Software), Data Analysis, Programming Principles, R Programming, Git (Version Control System), Integrated Development Environments
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Rust (Programming Language), Memory Management, System Programming, Package and Software Management, Data Structures, Software Installation, Code Reusability, Build Tools, Programming Principles, Other Programming Languages, Secure Coding, Maintainability, Data Management, Data Sharing, Data Access
Beginner · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Object Oriented Programming (OOP), Java, File I/O, Algorithms, Java Programming, Object Oriented Design, Data Structures, Encryption, Computer Programming, Software Engineering, Cryptography, Data Store, File Management, Data Import/Export, Web Applications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Rust (Programming Language), OpenAI API, Generative AI Agents, Package and Software Management, Memory Management, Development Environment, LLM Application, Large Language Modeling, Unit Testing, Agentic systems, Software Documentation, Software Installation
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Cryptography, Network Security, Secure Coding, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Cybersecurity, Key Management, Vulnerability Assessments, Authorization (Computing), Code Review, Dependency Analysis
Advanced · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: AI Integrations, Artificial Intelligence, Machine Learning Methods, Machine Learning Software, Machine Learning, Contract Management, Contract Compliance, Predictive Modeling, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Skills you'll gain: QuickBooks (Accounting Software), Reconciliation, Month End Closing, Transaction Processing, Accruals, Accounting Software, Depreciation, Accrual Accounting, Bookkeeping, Accounting, General Accounting, Accounting Records, Standard Accounting Practices, Cash Handling, Small Business Accounting, Data Entry
Beginner · Course · 1 - 3 Months

Skills you'll gain: Programmable Logic Controllers, Computational Logic, Code Reusability, Data Structures, Diagram Design, Dataflow, Microsoft Azure, Automation, Program Development, Performance Tuning, Data Management, System Configuration, Interactive Data Visualization, Data Integration, Functional Design, Fine-tuning, Communication, Simulations
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Financial Reporting, Ledgers (Accounting), Bookkeeping, International Financial Reporting Standards, Financial Statements, Reconciliation, Accounting, Generally Accepted Accounting Principles (GAAP), Accounting Records, Financial Statement Analysis, Financial Accounting, General Accounting, Accounting Software, Depreciation, Standard Accounting Practices, Accruals, Accounting Systems, Accrual Accounting, Business Reporting, Financial Analysis
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Model Deployment, Fine-tuning, PyTorch (Machine Learning Library), Model Evaluation, Model Training, Vision Transformer (ViT), Model Optimization, Transfer Learning, MLOps (Machine Learning Operations), Natural Language Processing, Debugging, Containerization, Kubernetes, Docker (Software), Distributed Computing, Performance Tuning, Tensorflow, Deep Learning, Cloud Computing, Data Pipelines
Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Java Programming, Object Oriented Design, Software Development Tools, Computer Programming Tools, Code Reusability, Software Installation, Linux Commands
Intermediate · Specialization · 1 - 3 Months

Interactive Brokers
Skills you'll gain: Investments, Portfolio Risk, Portfolio Management, Risk Management, Investment Management, Equities, General Finance, Securities Trading, Market Trend, Market Opportunities, Performance Analysis, Stock Rotation, Business Economics, Market Dynamics, Market Analysis
Beginner · Course · 1 - 4 Weeks