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: Scikit Learn (Machine Learning Library), Predictive Modeling, Tensorflow, Cloud Computing, Statistical Machine Learning, Machine Learning Software, Classification Algorithms, Applied Machine Learning, Machine Learning Methods, Python Programming, Model Training, Data Preprocessing, Data Science, Machine Learning, Model Evaluation, Model Optimization, Scientific Visualization
★ 4.6 (162) · Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: React.js, UI Components, Front-End Web Development, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Web Scraping, Database Management, Databases, Unit Testing, Data Transformation, Data Access, Data Capture, Package and Software Management, Application Programming Interface (API), Data Integration, Data Wrangling, Integrated Development Environments, Data Pipelines, Maintainability, Python Programming, Programming Principles, Style Guides
★ 4.6 (861) · Intermediate · Course · 1 - 4 Weeks

École Polytechnique
Skills you'll gain: Physics, electromagnetics, Experimentation, Cryptography, Mathematical Modeling, Laboratory Research, Emerging Technologies
★ 4.8 (339) · Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Policy Analysis, Research, and Development, Network Performance Management, Policy Development, Policy Analysis, Social Justice, General Networking, Public Policies, Law, Regulation, and Compliance, Cyber Governance, Economics, Policy, and Social Studies, Business Economics, Socioeconomics, Economics, Diversity Equity and Inclusion Initiatives, Telecommunications, Regulation and Legal Compliance, Technical Writing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Driven Development (TDD), Debugging, Software Testing, Performance Testing, Unit Testing, Test Engineering, System Testing, Test Tools, Test Automation, Testability, Integration Testing, Performance Stress Testing, .NET Framework, Performance Tuning, Software Development Tools
★ 4.7 (28) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Simulation and Simulation Software, Engineering Analysis, Thermal Management, Hydraulics, Mechanical Engineering, Simulations, Numerical Analysis, Energy and Utilities, Mathematical Modeling, Engineering, Mechanics, Physics
★ 4.7 (184) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Agile Product Development, Agile Methodology, Security Management, Cyber Security Assessment, Audit Planning, Cyber Risk, Performance Metric, Business Ethics, Law, Regulation, and Compliance, Risk Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Design Reviews, Graphic and Visual Design, Creative Design, Graphic and Visual Design Software, Typography, Design Elements And Principles, Layout Design, Content Creation, Animations, Advertising
★ 3.5 (6) · Beginner · Course · 3 - 6 Months

Microsoft
Skills you'll gain: Conflict Management, Influencing, Accountability, Cross-Functional Collaboration, Emotional Intelligence, Leadership, Leadership Development, Negotiation, Storytelling, Professional Development, Persuasive Communication, Follow Through, Constructive Feedback, Growth Mindedness, Stakeholder Communications, Trustworthiness, Communication, People Development, Performance Management, Performance Review
Intermediate · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Robotics, Mathematical Modeling, Mathematical Software, Applied Mathematics, Mechanics, Simulation and Simulation Software, Engineering, Virtual Environment, Torque (Physics), Numerical Analysis
★ 4.9 (302) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Angular, UI Components, Web Development Tools, JavaScript Frameworks, User Interface (UI), TypeScript, Cascading Style Sheets (CSS)
★ 4.4 (12) · Beginner · Guided Project · Less Than 2 Hours