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.

Board Infinity
Skills you'll gain: Cascading Style Sheets (CSS), Web Design and Development, User Interface and User Experience (UI/UX) Design, Web Content Accessibility Guidelines
Beginner · Course · 1 - 4 Weeks

Sungkyunkwan University
Skills you'll gain: Political Sciences, International Relations, Social Justice, Policy Analysis, Social Sciences, World History, Culture, Diplomacy, Ethical Standards And Conduct, Governance
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Google Gemini, Search Engine Optimization, Anthropic Claude, Large Language Modeling, Generative AI, ChatGPT, Prompt Engineering, Web Analytics and SEO, Keyword Research, Artificial Intelligence, Content Creation, Content Strategy, Product Promotion, Brand Strategy
Mixed · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Docker (Software), Containerization, Cloud-Native Computing, Application Deployment, YAML, Devops Tools, Command-Line Interface, Google Cloud Platform, Web Applications, Cloud Deployment, Data Persistence, Development Environment, Configuration Management, Virtual Networking, Nginx, CI/CD, MongoDB, Service Management, Infrastructure Security
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Data Security, Relational Databases, Disaster Recovery, Cloud Management, Databases, System Monitoring, Data Storage, Data Management, Microsoft SQL Servers, Cloud Storage, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Sales Presentation, Influencing, Persuasive Communication, Intercultural Competence, Virtual Teams, Storytelling, Behavioral Economics, Business Research, Value Propositions, Active Listening, Market Research, Empathy & Emotional Intelligence, Sales Pipelines, Marketing Psychology, Digital Communications, Collaboration, Customer Relationship Management (CRM) Software, Stakeholder Management, Strategic Communication, Cross-Functional Collaboration
Intermediate · Specialization · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Accounts Payable, Accruals, Accounting, Standard Accounting Practices, International Financial Reporting Standards, Technical Accounting, Financial Accounting, Generally Accepted Accounting Principles (GAAP), Lease Contracts, Financial Reporting, Financial Statements
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Flask (Web Framework), Web Development, Web Applications, Application Development, Web Development Tools, Object-Relational Mapping, Back-End Web Development, Software Development, Database Management, Python Programming, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

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

Skills you'll gain: Internet Of Things, Advanced Analytics, Big Data, IT Security Architecture, Data-Driven Decision-Making, Robotics, Automation, Real Time Data, Emerging Technologies, Interoperability, Data Security, Integration Testing, Cloud Services, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Linux Administration, System Monitoring, Linux Commands, Performance Tuning, Linux, Systems Administration, File Management, Network Troubleshooting, Unix Commands, Debugging, Service Management, User Accounts, OS Process Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Test Case, Software Testing, Cascading Style Sheets (CSS), Application Frameworks, Browser Compatibility, Javascript and jQuery, Web Scraping, Automation, Python Programming, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 3 Months