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.

Rice University
Skills you'll gain: Environmental Monitoring, Water Quality, Environmental Engineering and Restoration, Hydrology, Environmental Engineering, Water Resources, Environmental Science, Mathematical Modeling, Analytical Chemistry, Molecular, Cellular, and Microbiology, Microbiology, Chemistry
★ 4.8 (511) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Network Security, Cryptographic Protocols, OSI Models, Public Key Infrastructure, Cybersecurity, Key Management, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Local Area Networks, Authentications, Quantum computing
★ 4.8 (12) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Network Security, Encryption, OSI Models, IT Security Architecture, Network Performance Management, Network Architecture, General Networking, Network Planning And Design, Communication Systems, TCP/IP, Remote Access Systems, Network Infrastructure, Network Protocols, Wireless Networks, Virtual Private Networks (VPN), Virtual Networking, Endpoint Security, Cloud Security, Software-Defined Networking
★ 4.8 (14) · Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Drug Development, Pharmaceuticals, Pharmacology, Pharmaceutical Terminology, Pre-Clinical Development, Clinical Trials, Biotechnology, Bioinformatics, Medical Science and Research, Healthcare Industry Knowledge, Molecular Biology, Market Opportunities, Chemistry
★ 4.7 (4K) · Beginner · Course · 1 - 3 Months

Indian Institute of Technology Guwahati
Skills you'll gain: Sustainable Business, Sustainable Engineering, Product Design, Product Engineering, Product Development, Product Lifecycle Management, Product Strategy, Packaging and Labeling, Environmental Regulations, Sustainability Reporting, Product Improvement, Climate Change Mitigation, Corporate Sustainability, Industrial Design, Waste Minimization, Environmental Social And Corporate Governance (ESG), Environmental Science, Business Modeling, Pollution Prevention, Reverse Logistics
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Azure, Serverless Computing, Microsoft Power Automate/Flow, Microsoft Power Platform, Business Process Automation, Microsoft Development Tools, Event-Driven Programming, Cloud API, Application Programming Interface (API), Web Applications, Business Logic, GitHub
★ 4.2 (12) · Intermediate · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Scientific Methods, Research, Science and Research, Nutrition Education, Nutrition and Diet, Behavioral Health, Physiology, Psychology, Peer Review
★ 4.6 (896) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SolidWorks (CAD), 3D Modeling, Assembly Drawing, Engineering Design Process, Mechanical Design, Computer-Aided Design, Mechanical Engineering, Torque (Physics), Verification And Validation, Functional Testing
★ 5 (16) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LangChain, AI Orchestration, SQL, LLM Application, Query Languages, Generative AI Agents, OpenAI API, Microsoft Azure, Tool Calling, OpenAI, Natural Language Processing, Large Language Modeling
★ 4.5 (54) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: File I/O, Unified Modeling Language, Visual Basic (Programming Language), Object Oriented Programming (OOP), Microsoft Visual Studio, Object Oriented Design, Program Development, Microsoft Development Tools, .NET Framework, Code Reusability, Software Engineering, Data Structures
★ 4.6 (16) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, Dynamic Host Configuration Protocol (DHCP), AWS Identity and Access Management (IAM), Encryption, Network Security, Routing Protocols, Virtual Networking, Network Routing, Network Architecture, Hybrid Cloud Computing, Event Monitoring, Amazon Web Services, Network Planning And Design, Security Controls, Cloud Security, Network Infrastructure, AWS CloudFormation
★ 3.5 (6) · Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Experimentation, Research Design, Statistical Methods, Statistical Analysis, Data Ethics, General Science and Research, Statistical Modeling, Data Science, Data Analysis, Quantitative Research, Regression Analysis, Statistical Inference, Probability & Statistics, Mathematical Modeling, Linear Algebra, Calculus
★ 4 (23) · Intermediate · Course · 1 - 4 Weeks