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: Selenium (Software), Test Script Development, Test Automation, Eclipse (Software), Software Testing, Scripting, Test Tools, UI Components, Integrated Development Environments, Web Applications, Java, Functional Testing
Beginner · Guided Project · Less Than 2 Hours

Fortinet, Inc.
Skills you'll gain: Network Support, Network Troubleshooting, Firewall, Network Monitoring, Technical Support and Services, Network Security, Virtual Private Networks (VPN), Lightweight Directory Access Protocols, System Monitoring, Authentications, Performance Tuning, Security Software, System Configuration, Cybersecurity, Memory Management, Malware Protection
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Debugging, Application Development, Artificial Intelligence, Generative AI
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Feature Engineering, Exploratory Data Analysis, Data Wrangling, Data Processing, Data Cleansing, Data Quality, Data Analysis, Data Transformation, Anomaly Detection, Data Manipulation, Data Integration, Model Training, Data Validation, Test Data, Data Import/Export, Statistical Methods, Statistical Analysis, Descriptive Statistics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Meta Ads Manager, Data Storytelling, Data Presentation, Business Metrics, Key Performance Indicators (KPIs), Marketing Analytics, Data-Driven Marketing, Bayesian Statistics, Data Visualization, Descriptive Statistics, Marketing Effectiveness, Statistical Hypothesis Testing, Target Audience, Pandas (Python Package), Data Analysis, Data Visualization Software, A/B Testing, Data Collection, Marketing, Interviewing Skills
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Columbia University
Skills you'll gain: Computer Vision, Image Analysis, Dimensionality Reduction, Artificial Neural Networks, Machine Learning Methods, Deep Learning, Graph Theory, Machine Learning Algorithms
Beginner · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Adobe Illustrator, Color Theory, Color Matching, Graphics Software, Creative Design, Design, Graphic and Visual Design, Visualization (Computer Graphics), Design Software, Data Import/Export, Typography, Computer Graphics, Graphical Tools, Graphic Design, Graphic and Visual Design Software, Adobe Creative Cloud, Digital Design, Computer Graphic Techniques, Creativity
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Javascript, Web Development, Web Development Tools, Scripting, Hypertext Markup Language (HTML), Programming Principles
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, CI/CD, Spring Boot, Restful API, Java Programming, Integration Testing, Continuous Integration, Java, Database Development, Cloud Deployment, Application Security, Containerization, Spring Framework, SQL, NoSQL, Docker (Software), Kubernetes, Test Driven Development (TDD), Object Oriented Design
Beginner · Specialization · 1 - 3 Months

Illinois Tech
Skills you'll gain: Responsible AI, Machine Learning Methods, Data Ethics, Artificial Intelligence, Machine Learning Algorithms, Generative AI, AI Product Strategy, Machine Learning, AI literacy, OpenAI, Anthropic Claude, Supervised Learning, Automation, Market Intelligence, Human Machine Interfaces, Emerging Technologies, Deep Learning, Human Factors
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Development Environment, Programming Principles, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Power BI, Microsoft Copilot, Data Modeling, Data Analysis Expressions (DAX), Microsoft Power Platform, Data Storytelling, Data Visualization Software, Data Presentation, Interactive Data Visualization, Business Intelligence, Data Maintenance, Data Analysis, Extract, Transform, Load, Database Administration, Data Integration, Data Manipulation, Data Wrangling, Data Transformation, Data Access, Data Cleansing
Beginner · Course · 1 - 3 Months