Data Structures and Algorithms courses can help you learn about arrays, linked lists, trees, and graph structures, along with sorting and searching algorithms. You can build skills in problem-solving, optimizing code efficiency, and analyzing algorithm complexity. Many courses introduce tools like Python, Java, or C++ for implementing these concepts, as well as platforms for coding challenges that reinforce your understanding through practical application.

Duke University
Skills you'll gain: Music, Music Theory, Aesthetics, World Music, Cultural Diversity, Psychology, Physiology, Biology
Mixed · Course · 1 - 3 Months

Skills you'll gain: AWS Kinesis, Amazon Web Services, Real Time Data, Extract, Transform, Load, Data Processing, Dashboard, Full-Stack Web Development, Mobile Development Tools, Event-Driven Programming, Business Intelligence, Data Visualization
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Test Case, Test Data, Test Script Development, Test Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, General Networking, Virtual Machines, Web Servers, Remote Access Systems, Network Infrastructure, Network Administration, Computer Networking, Network Analysis
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: LinkedIn, Drive Engagement, Content Creation, Professional Networking, Digital Publishing, Social Media, Relationship Building, Branding, Professional Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, Agentic systems, AI Workflows, OpenAI API, LLM Application, Agentic Workflows, Prompt Patterns, OpenAI, Large Language Modeling, AI Enablement, Retrieval-Augmented Generation, Artificial Intelligence, Development Environment, Tool Calling, Microsoft Azure, AI Personalization, Microsoft Development Tools, Microsoft Visual Studio
Intermediate · Specialization · 3 - 6 Months

École normale supérieure
Skills you'll gain: Sustainable Development, Economic Development, Environmental Science, Energy and Utilities, Governance, Environment, Sustainability Reporting, Climate Change Mitigation, Climate Change Adaptation, Environmental Policy, Finance, Advocacy, Economics, Lobbying, Public Policies
Intermediate · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Lifelong Learning, Growth Mindedness, digital literacy, Critical Thinking, Emerging Technologies, Professional Development, Computer Literacy, Safety and Security, Creativity, Technology Strategies, Web Content Accessibility Guidelines, Collaboration, Communication
Beginner · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Innovation, Product Development, Design Thinking, New Product Development, Health Systems, Commercialization, Ideation, Health Technology, Social Studies, Economics, Policy, and Social Studies, Case Studies
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Writing and Editing, Editing, Prompt Engineering, AI Enablement, Proofreading, Responsible AI, Content Creation, Business Writing, Diversity and Inclusion, Analysis, Target Audience, Communication, Communication Strategies, Business Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Cryptography, Firewall, Cybersecurity, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Cloud Security, Public Key Infrastructure, Network Monitoring, Encryption, Network Architecture, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Local Area Networks, Virtual Local Area Network (VLAN), Network Switches, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Shell Script, Package and Software Management, Linux Administration, Linux Commands, Unix Shell, Systems Administration, Hardening, Unix Commands, Patch Management, Scripting, System Monitoring, User Accounts, Dynamic Host Configuration Protocol (DHCP), System Configuration, OS Process Management, Firewall, Process Management
Advanced · Course · 1 - 4 Weeks