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.

Google Cloud
Skills you'll gain: Machine Learning Methods, Model Evaluation, Machine Learning, Google Cloud Platform, Model Training, Machine Learning Algorithms, Applied Machine Learning, Supervised Learning, Machine Learning Software, Time Series Analysis and Forecasting, Financial Trading, Deep Learning, Statistical Machine Learning, Model Optimization, Artificial Intelligence and Machine Learning (AI/ML), Artificial Neural Networks, Securities Trading, Technical Analysis, Cloud Platforms, Finance
★ 4 (900) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Security Controls, HTML and CSS, UI Components, User Interface (UI) Design
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Unsupervised Learning, Microsoft Azure, Applied Machine Learning, Machine Learning Software, Model Training, Regression Analysis, Predictive Modeling, Machine Learning, No-Code Development, Machine Learning Algorithms, Artificial Intelligence and Machine Learning (AI/ML), Model Deployment, Artificial Intelligence, Classification Algorithms, Supervised Learning
★ 4.4 (297) · Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Structures, Python Programming, Computer Programming, Data Visualization, Computational Thinking, Debugging
★ 4 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: User Research, Figma (Design Software), Design Research, User Experience Design, Prototyping, Wireframing, UI/UX Research, Persona (User Experience), User Experience, User Centered Design, Collaborative Software, Interactive Design, Persona Development
★ 4.6 (25) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Power BI, Dashboard, Dashboard Creation, SQL, Data Security, Data Analysis, Data Modeling, Data Management, Role-Based Access Control (RBAC), Data Sharing, Security Controls, Data Access
★ 4.4 (309) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cyber Threat Hunting, Incident Response, Computer Security Incident Management, Cybersecurity, Network Security, Cyber Security Policies, Cyber Operations, Cyber Attacks, Cyber Security Strategy, Threat Detection, Security Controls, Cyber Security Assessment, Threat Management, Intrusion Detection and Prevention, Computer Security, Firewall, Security Information and Event Management (SIEM), Continuous Monitoring, Event Monitoring, Endpoint Security
★ 4.7 (7) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Python Programming, Data Structures, Computer Programming, Software Engineering, Performance Tuning, Web Development, Performance Testing, Debugging, Web Development Tools
★ 4.7 (28) · Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Exploitation techniques, Application Security, Vulnerability Assessments, Extensible Markup Language (XML), Threat Detection
★ 4.8 (23) · Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: SQL, Data Quality, Complex Problem Solving, Data Visualization, JSON, Query Languages, Business Metrics, Business Reporting, Data Validation, Data Cleansing, Data Presentation, Forecasting, Data Analysis, Predictive Analytics, Data Manipulation
★ 4 (27) · Intermediate · Course · 1 - 4 Weeks

Universidade de São Paulo
Skills you'll gain: Software Design Patterns, Software Design, Software Architecture, Maintainability, Object Oriented Design, Object Oriented Programming (OOP), Code Reusability, Application Frameworks, Systems Architecture, Software Engineering, Programming Principles, Software Quality (SQA/SQC)
★ 5 (19) · Advanced · Course · 1 - 3 Months
University of Washington
Skills you'll gain: Big Data, Relational Databases, Database Systems, Dataflow, Databases, Data Science, Database Theory, Data Manipulation, Data Store, Data Processing, Database Management Systems, NoSQL, Apache Spark, Distributed Computing, Apache Hadoop, SQL, Data Analysis, Query Languages, Cloud Computing, Python Programming
★ 4.3 (773) · Mixed · Course · 1 - 3 Months