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: Command-Line Interface, Virtualization and Virtual Machines, Network Security, Virtualization, Operating Systems, Hardware Troubleshooting, Information Technology Operations, Network Troubleshooting, Computer Hardware, Network Support, Cloud Computing, Mac OS, Security Controls, Microsoft Windows, Information Systems Security, System Configuration, Operating System Administration, Network Infrastructure, Data Storage, Peripheral Devices
Intermediate · Specialization · 3 - 6 Months

New York University
Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Data Encryption Standard, Threat Management, Cyber Risk, IT Security Architecture, Mobile Security, Enterprise Security, Cyber Security Assessment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: React Native, Mobile Development, User Interface (UI) Design, Front-End Web Development, React Redux, Ajax, User Interface and User Experience (UI/UX) Design, Javascript, React.js, Data Structures, Application Development, Apple iOS, Debugging, iOS Development, UI Components, JavaScript Frameworks, User Story, Android Development, Mobile Development Tools, Full-Stack Web Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Open Web Application Security Project (OWASP), SonarQube, Threat Modeling, Secure Coding, Application Security, Security Testing, DevSecOps, Code Review, Maintainability, Vulnerability Scanning, Software Quality (SQA/SQC), Risk Mitigation, Software Quality Assurance, MITRE ATT&CK Framework, Vulnerability Assessments, Cyber Security Assessment, Software Technical Review, Continuous Integration, Vulnerability Management, Cyber Attacks
Intermediate · Specialization · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Android Development, Android Studio, Mobile Development, User Interface (UI), Mobile Development Tools, Kotlin, Application Development, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, UI Components, Mobile Security, Data Persistence, Data Management, Geographic Information Systems, Restful API, Performance Tuning, Global Positioning Systems, Application Programming Interface (API), Cloud Storage, Application Performance Management
Build toward a degree
Intermediate · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Unsupervised Learning, Supervised Learning, Machine Learning Methods, Model Training, Applied Machine Learning, Machine Learning Algorithms, Transfer Learning, Machine Learning, Jupyter, Data Ethics, Decision Tree Learning, Model Evaluation, Responsible AI, Tensorflow, Scikit Learn (Machine Learning Library), NumPy, Predictive Modeling, Deep Learning, Artificial Intelligence, Classification Algorithms
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Network Security, Business Continuity Planning, Business Continuity, Audit Planning, Disaster Recovery, OSI Models, Control Objectives for Information and Related Technology (COBIT), Security Management, Computer Security Incident Management, IT General Controls (ITGC), Security Controls, Firewall, Asset Protection, Systems Development, Compliance Auditing, Information Technology, Information Systems, Security Awareness, Auditing, Cryptography
Beginner · Course · 1 - 3 Months

Sage Publications
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Structures, Programming Principles, IT Automation, File I/O, Python Programming, Code Reusability, Development Environment, Scripting, Computational Logic, Program Development, Computer Programming, File Systems, Debugging, Problem Solving
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, Flask (Web Framework), Application Deployment, Test Case, Software Testing, Web Applications, AI Integrations, Code Review, Cloud Development, Python Programming, IBM Cloud, AI Enablement, Web Development, Artificial Intelligence, Maintainability, Restful API, Integrated Development Environments, Application Programming Interface (API), Programming Principles, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Version Control, Data Science, R (Software), Git (Version Control System), GitHub, Software Versioning, Data Literacy, General Science and Research, Data Analysis, R Programming, Development Environment, Statistical Reporting, Software Installation
Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Cybersecurity, Key Management, Advanced Encryption Standard (AES), Encryption, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Authentications, Arithmetic, Algorithms, Brute-force attacks, Applied Mathematics, Data Integrity, Probability, Computer Science
Beginner · Specialization · 3 - 6 Months