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: Penetration Testing, Exploitation techniques, Network Security, Intrusion Detection and Prevention, Hardening, Local Area Networks, Threat Detection, General Networking, Vulnerability Management, System Configuration, Linux Administration, Authentications, Software Installation, Virtual Machines, Network Analysis, Virtualization
Intermediate · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Photo Editing, Visual Storytelling, Computer Graphic Techniques, Graphic and Visual Design Software
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Unreal Engine, User Interface and User Experience (UI/UX) Design, UI Components, User Interface (UI) Design, Video Game Development, Game Design, Computer Graphics, Code Reusability, No-Code Development, Virtual Environment, Scripting, Event-Driven Programming, Computational Logic, Data Structures
Beginner · Course · 3 - 6 Months

Imperial College London
Skills you'll gain: Correlation Analysis, Regression Analysis, Data Analysis, R Programming, Descriptive Statistics, Descriptive Analytics, Statistical Modeling, R (Software), Model Evaluation, Statistical Analysis, Logistic Regression, Statistical Software, Predictive Modeling, Data Import/Export
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Data Presentation, Data Storytelling, Data Wrangling, Plot (Graphics), Tidyverse (R Package), Descriptive Statistics, Data Cleansing, Data Manipulation, Data Preprocessing, Scatter Plots, Histogram, Data Science
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Network Monitoring, Network Performance Management, Network Administration, Network Security, Routing Protocols, Network Troubleshooting, OSI Models, TCP/IP, Computer Networking, Network Routers, Network Switches, General Networking, Command-Line Interface, Network Routing, Networking Hardware, Network Architecture, Network Infrastructure, Cybersecurity, Network Model, Network Protocols
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Collaborative Software, Git (Version Control System), Version Control, Debugging, Conflict Management, Root Cause Analysis, Reconciliation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Artificial Intelligence, Agentic systems, Algorithms, Game Design, Video Game Development, Program Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Test Automation, Test Script Development, Mobile Development Tools, Jenkins, Test Execution Engine, Application Frameworks, Continuous Integration, Debugging, Scalability, CI/CD, Test Engineering, Maintainability, Automation, Continuous Deployment, Cross Platform Development, Code Reusability, Containerization
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Evaluation, Supervised Learning, Unsupervised Learning, Data Preprocessing, Time Series Analysis and Forecasting, Applied Machine Learning, Model Training, Machine Learning Methods, Machine Learning Algorithms, Statistical Machine Learning, Feature Engineering, Machine Learning Software, Dimensionality Reduction, Machine Learning, Predictive Modeling, Data Wrangling, Predictive Analytics, Forecasting, Data Processing, Anomaly Detection
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Analytics, Data Visualization, Plot (Graphics), Statistical Visualization, Matplotlib, Marketing Analytics, Social Media Marketing, Python Programming, Social Media, Data Presentation, Data Analysis, Data Wrangling, Exploratory Data Analysis, Data Cleansing, Seaborn, Content Performance Analysis, Jupyter
Intermediate · Guided Project · Less Than 2 Hours

University of Geneva
Skills you'll gain: Sociology, Diversity Awareness, Social Sciences, Social Justice, World History, International Relations, Socioeconomics, Economics, Policy, and Social Studies, Health Equity, Culture, Cultural Diversity, Anthropology, Science and Research, Political Sciences, Research
Beginner · Course · 1 - 3 Months