Theoretical computer science courses can help you learn algorithms, computational complexity, automata theory, and formal languages. You can build skills in problem-solving, mathematical reasoning, and algorithm analysis, that support tackling complex computational tasks. Many courses introduce tools like Python for algorithm implementation, LaTeX for typesetting mathematical documents, and software for simulating automata, allowing you to apply these concepts in practical scenarios.

Scrimba
Skills you'll gain: Javascript, JavaScript Frameworks, Web Development, Application Development, Web Applications, JSON, Event-Driven Programming, Object Oriented Programming (OOP), Programming Principles, Computer Programming, Software Engineering, Functional Design, Computer Science
Intermediate · Course · 1 - 3 Months

Skills you'll gain: LLM Application, OpenAI, Generative AI Agents, Agentic systems, Tool Calling, Prompt Engineering, ChatGPT, Artificial Intelligence, Application Programming Interface (API), User Interface (UI), Large Language Modeling, Python Programming, Development Environment, Application Deployment, JSON, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model View Controller, Software Design Patterns, Java Platform Enterprise Edition (J2EE), Project Design, Web Applications, Back-End Web Development, Server Side, Integrated Development Environments, Employee Performance Management, Registration, Databases, Authentications
Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Generative AI Agents, Prompt Engineering, Google Gemini, Generative AI, AI Product Strategy, LLM Application, Google Cloud Platform, Artificial Intelligence, Business Transformation, Innovation, Organizational Change, Customer Engagement, Continuous Monitoring
Beginner · Course · 1 - 3 Months

Skills you'll gain: Web Content Accessibility Guidelines, User Experience Design, Design and Product, Digital Design, User Interface (UI), Technical Writing, Usability Testing, Design Research, User Centered Design, Content Creation, Style Guides, Content Strategy, Writing, Information Architecture, Product Design
Beginner · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Hardware Design, Security Engineering, Computer Hardware, Hardware Architecture, Threat Modeling, Threat Detection, Cybersecurity, Vulnerability Assessments, Application Specific Integrated Circuits, Exploit development, Cryptography, Systems Design, Encryption, Exploitation techniques, Technical Design, Emerging Technologies
Mixed · Course · 1 - 3 Months

Skills you'll gain: Restful API, Flask (Web Framework), Application Deployment, Web Applications, Python Programming, IBM Cloud, Server Side, Artificial Intelligence, Code Review, Programming Principles, Development Environment, Unit Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Object Oriented Programming (OOP), Version Control, GitHub, User Accounts, Role-Based Access Control (RBAC), Microsoft Visual Studio, Git (Version Control System), Debugging, Microsoft SQL Servers, .NET Framework, Object-Relational Mapping, Full-Stack Web Development, Identity and Access Management, Development Environment, Database Management, Database Development, Application Development, Authorization (Computing), Microsoft Windows
Intermediate · Specialization · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Object Oriented Programming (OOP), C++ (Programming Language), C and C++, Object Oriented Design, Computer Programming, Software Design Patterns, Programming Principles, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Design Thinking, Usability, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Interactive Design, Application Design, Python Programming, Application Development
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: LESS, Cascading Style Sheets (CSS), HTML and CSS, Web Development Tools, Maintainability, UI Components, Scalability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: ASP.NET, .NET Framework, Identity and Access Management, Full-Stack Web Development, Web Applications, Microsoft Azure, Web Development, Application Deployment, Database Application, Authorization (Computing), Authentications, Databases, Database Design, Software Architecture, Payment Systems, Software Design Patterns, Data Modeling, User Interface (UI), Transaction Processing
Intermediate · Course · 3 - 6 Months