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.

University of Glasgow
Skills you'll gain: Model Training, Model Evaluation, Data Preprocessing, Machine Learning Methods, Statistical Methods, Machine Learning Software, Statistical Machine Learning, Data Validation, Data Processing, Data Quality, Mathematical Software, Classification Algorithms, Machine Learning Algorithms
★ 4.9 (51) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Wiring Diagram, Architectural Drawing, AutoCAD, Electrical Wiring, Electrical Systems, Electrical Equipment, Technical Drawing, Electrical Power, Drafting and Engineering Design, Computer-Aided Design, Engineering Drawings, Schematic Diagrams, Engineering Design Process, Commercial Construction, Electrical Engineering, Layout Design, Autodesk, Technical Documentation, AutoCAD Civil 3D, Design Software
★ 4.8 (25) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Dashboard Creation, Data Visualization Software, Data Visualization, Dashboard, Interactive Data Visualization, Google Cloud Platform
★ 4.1 (17) · Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Metasploit, Open Web Application Security Project (OWASP), Penetration Testing, Exploit development, Vulnerability Scanning, Exploitation techniques, Security Testing, Vulnerability Assessments, Hardening, Brute-force attacks, Web Applications, Cybersecurity, Firewall, Network Security, Wireless Networks, Network Analysis, SQL
★ 3.7 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Brand Awareness, Campaign Management, Brand Marketing, Keyword Research, Content Scheduling, Canva (Software), Email Marketing, Concision, Brand Strategy, Content Marketing, Web Analytics and SEO, Marketing Effectiveness, Social Media Content, Branding, Social Media, Content Strategy, Communication, Paid media, Key Performance Indicators (KPIs)
★ 2 (8) · Beginner · Specialization · 3 - 6 Months

SkillUp
Skills you'll gain: Group Policy, Dynamic Host Configuration Protocol (DHCP), Azure Active Directory, Active Directory, Windows Servers, Hyper-V, Remote Access Systems, iSCSI Configuration, Virtual Private Networks (VPN), Containerization, Microsoft Azure, Kubernetes, Microsoft Servers, Microsoft Windows, Docker (Software), Hybrid Cloud Computing, Virtualization, Virtual Machines, Server Administration, Network Administration
★ 4.6 (11) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Database Administration, Database Architecture and Administration, Relational Databases, Database Management, Apache Airflow, Operational Databases, PostgreSQL, MySQL, Data Warehousing, Data Pipelines, Database Software, Extract, Transform, Load, Database Management Systems, Database Design, Data Maintenance, SQL, Data Architecture, Performance Tuning, Disaster Recovery, Data Security
★ 4.7 (19) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Javascript, Web Language, Data Persistence, Scripting Languages, Data Storage, Web Development, Programming Principles, Data Structures, Computational Logic, Software Engineering
★ 4.9 (10) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Ruby (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Debugging, Code Reusability, Development Environment, Integrated Development Environments, Computer Programming, Programming Principles, Apple Xcode, Computational Logic, Software Installation, Program Development, Computer Programming Tools, Microsoft Windows, Command-Line Interface
★ 4.6 (12) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Plot (Graphics), Prompt Engineering Tools, Large Language Modeling, Text Mining, Retrieval-Augmented Generation, Model Optimization, Data Visualization Software, Fine-tuning, Unstructured Data, Data Processing, Data Analysis
★ 5 (8) · Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Vector Databases, Embeddings, Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Algorithms, Semantic Web
★ 4.6 (12) · Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Sampling (Statistics), Matplotlib, Data Analysis, Machine Learning Algorithms, Data Mining, Statistical Analysis, Statistical Hypothesis Testing, Plot (Graphics), Probability & Statistics, NumPy, Pandas (Python Package), Probability Distribution, Dimensionality Reduction, Model Evaluation, R Programming, Python Programming, Data Preprocessing, Applied Machine Learning, Regression Analysis, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.7 (35) · Beginner · Specialization · 3 - 6 Months