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.

Universidad de los Andes
Skills you'll gain: GitHub, Git (Version Control System), Version Control, Software Versioning, Software Development Tools, Collaborative Software
Build toward a degree
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Spring Framework, Java Programming, Java, File I/O, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Frameworks, Code Reusability, Object Oriented Design, Data Structures, File Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cloud-Native Computing, NoSQL, MongoDB, Agile Methodology, Cloud Development, Agile Software Development, Scrum (Software Development), Cloud Applications, Software Development, DevOps, Test Driven Development (TDD), Agile Project Management, Software Development Methodologies, CI/CD, Behavior-Driven Development, Continuous Integration, Continuous Delivery, Application Development, Cloud Deployment, Continuous Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI Agents, LangGraph, Generative AI, LangChain, Agentic Workflows, Multimodal Prompts, LLM Application, UI Components, AI Security, Vector Databases, Large Language Modeling, Application Security, User Interface (UI) Design, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Embeddings, Python Programming
Intermediate · Course · 3 - 6 Months

National Taiwan University
Skills you'll gain: Data Structures, Data Visualization Software, File I/O, Market Data, Financial Data, Financial Analysis, Data Analysis, Programming Principles, Data Processing, Python Programming, Data Manipulation, Data Import/Export, Maintainability, Data Validation
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Kubernetes, Application Deployment, Containerization, Authorization (Computing), Authentications, Security Controls, Cloud Hosting, Software Installation, Data Persistence, Infrastructure Architecture, Scalability, Data Storage, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Monitoring, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Routing Protocols, Virtual Private Networks (VPN), Security Controls, OSI Models, Dynamic Host Configuration Protocol (DHCP), Proxy Servers
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Model Evaluation, Predictive Modeling, Machine Learning Algorithms, Model Training, Machine Learning Methods, Feature Engineering, Supervised Learning, Machine Learning Software, Classification And Regression Tree (CART), Predictive Analytics, Applied Machine Learning, Data Preprocessing, R Programming, Classification Algorithms, Machine Learning, Random Forest Algorithm, Regression Analysis
Mixed · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Usability Testing, User Interface (UI), Usability, User Research, UI/UX Research, Human Computer Interaction, User Interface (UI) Design, Interaction Design, Test Planning
Mixed · Course · 1 - 3 Months

Skills you'll gain: Java, Mobile Development, Java Programming, Object Oriented Programming (OOP), Application Frameworks, Android Development, Application Development, Program Development, Software Development
Intermediate · Guided Project · Less Than 2 Hours

California Institute of the Arts
Skills you'll gain: Information Architecture, Wireframing, User Interface and User Experience (UI/UX) Design, Persona (User Experience), User Experience, Mockups, User Experience Design, UI/UX Strategy, Responsive Web Design, Web Design, User Interface (UI), User Interface (UI) Design, Adobe XD, User Centered Design, Interaction Design, Prototyping, Web Design and Development, Layout Design, Usability, User Research
Beginner · Specialization · 3 - 6 Months
Georgia Institute of Technology
Skills you'll gain: Materials science, Chemistry, Chemical Engineering, Physical Science, Mechanics
Mixed · Course · 1 - 3 Months