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.

Skills you'll gain: ASP.NET, .NET Framework, Web Applications, Application Deployment, Restful API, Model View Controller, Secure Coding, Content Management, Content Management Systems, Authentications, Test Automation, C# (Programming Language), Web Development, Performance Tuning, Docker (Software), Authorization (Computing), Web Development Tools, Kubernetes, API Testing, API Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: ASP.NET, .NET Framework, Model View Controller, Authentications, C# (Programming Language), Web Development, Performance Tuning, Authorization (Computing), Web Applications, Object-Relational Mapping, Application Frameworks, Secure Coding, Content Management Systems, Scalability, API Testing, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, API Design, ASP.NET, Application Programming Interface (API), GraphQL, .NET Framework, Object-Relational Mapping, Data Modeling, Data Store, Relational Databases, Middleware, C# (Programming Language), Query Languages, Transact-SQL, Data Mapping, Application Frameworks, Data Access, Back-End Web Development, Data Persistence, Configuration Management
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Object Oriented Programming (OOP), JSON, Object Oriented Design, Unit Testing, Python Programming, Code Reusability, Software Testing, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Data Import/Export, C++ (Programming Language), C and C++, Programming Principles, Data Structures, File Management, Computer Programming, Data Store, Memory Management, Computer Science, Development Environment
Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Blockchain, Cryptography, Cryptographic Protocols, Encryption, Payment Systems, FinTech, Public Key Cryptography Standards (PKCS), Key Management, Application Security, Digital Assets, Network Protocols, Transaction Processing, Distributed Computing, Emerging Technologies, Scripting, Application Specific Integrated Circuits, Data Structures, Financial Policy, Financial Regulation, Market Dynamics
Mixed · Course · 1 - 3 Months
Skills you'll gain: User Experience Design, User Experience, User Interface and User Experience (UI/UX) Design, Cross Platform Development, Experience Design, User Centered Design, UI/UX Research, Responsive Web Design, Human Centered Design, Web Design, Web Presence, Usability, Design Research, Design Thinking, Design Strategies, Usability Testing, Prototyping, Generative AI, Ideation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: GitHub Copilot, Responsible AI, Cloud Development, Microsoft Azure, Anomaly Detection, Image Analysis, Prompt Engineering, Prompt Patterns, Cloud Applications, Software Development, Text Mining, Unsupervised Learning, Cloud Deployment, Natural Language Processing, Data Store, Cloud Hosting, Data Storage, Computer Vision, Cloud Computing, Machine Learning
Intermediate · Specialization · 3 - 6 Months

Kennesaw State University
Skills you'll gain: Cyber Threat Intelligence, Security Management, Internet Of Things, Incident Response, Risk Management, Computer Security Incident Management, Cyber Security Policies, IT Management, Cyber Security Strategy, Cyber Governance, Risk Management Framework, Human Factors (Security), Business Risk Management, Cybersecurity, Incident Management, Threat Management, Security Awareness, Mobile Security, Cyber Attacks, Information Systems Security
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Secure Coding, Java Programming, Maintainability, Hardening, Java, Software Design Patterns, Application Security, Software Design, Data Structures, Object Oriented Design, Software Architecture, Performance Tuning, Memory Management, API Design, Code Reusability, Object Oriented Programming (OOP), Web Servers, Application Programming Interface (API), Software Development, Virtualization
Intermediate · Specialization · 3 - 6 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Reinforcement Learning, Computational Logic, Agentic systems, Bayesian Network, Decision Intelligence, Machine Learning, Bayesian Statistics, AI literacy, Markov Model, Algorithms, Computational Thinking, Probability, Model Optimization, Probability & Statistics, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Command-Line Interface, Mac OS, Unix Commands, File Management, Unix Shell, File Systems, Computer Literacy, Unix, File I/O, OS Process Management, Prompt Patterns, Verification And Validation
Beginner · Course · 1 - 4 Weeks