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.

Arizona State University
Skills you'll gain: Data Storage Technologies, Probability & Statistics, Statistics, Data Store, Mathematical Software, Data Storage, Data Access, Database Software, Data Manipulation, Data Transformation, Model Evaluation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), File I/O, Object Oriented Programming (OOP), Test Automation, Software Testing, Test Script Development, Programming Principles, Web Development Tools, Code Reusability, Scripting, Python Programming, Automation, Development Environment, Data Structures
★ 4.5 (6) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Firewall, Network Security, Intrusion Detection and Prevention, Cyber Security Policies, Information Systems Security, Security Controls, Infrastructure Security, Threat Detection, System Monitoring, Linux Administration, Linux Servers, Linux, Linux Commands, Data Integrity
★ 3.9 (63) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Business Ethics, Accountability, Accountability Frameworks, Environmental Social And Corporate Governance (ESG), Sustainable Business, Ethical Standards And Conduct, Compliance Management, Regulatory Compliance, Corporate Sustainability, Overcoming Objections, Environmental Regulations, Sustainability Standards, Regulatory Requirements, Organizational Change, Stakeholder Engagement, Advocacy, Change Management
★ 4.8 (32) · Beginner · Course · 1 - 4 Weeks

American Psychological Association
Skills you'll gain: Diversity Awareness, Sociology, Culture, Psychology, Cultural Diversity, Human Development, Social Sciences, Child Development, Learning Theory, Biology, Health Education
★ 4.5 (14) · Beginner · Course · 3 - 6 Months

Skills you'll gain: File I/O, Programming Principles, Code Reusability, File Management, Data Structures, Development Environment, Microsoft Visual Studio, Integrated Development Environments, Computer Programming, Software Installation, Program Development, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Feature Engineering, Agentic Workflows, AI Orchestration, Generative AI Agents, Model Optimization, Model Training, Data Ethics, Responsible AI, Model Deployment, Agentic systems, Artificial Intelligence, Generative AI, MLOps (Machine Learning Operations), Data Transformation, Model Evaluation, Reinforcement Learning, Code Reusability, Fine-tuning, System Design and Implementation, Python Programming
Intermediate · Course · 1 - 3 Months

AI Business School
Skills you'll gain: Prompt Engineering, Prompt Patterns, Prompt Engineering Tools, Generative AI, Sales Enablement, AI Personalization, Sales, AI literacy, AI Product Strategy, AI Enablement, ChatGPT, Large Language Modeling, LLM Application, AI Workflows, Artificial Intelligence, Decision Intelligence, Finance, Ideation, Business Transformation, Innovation
★ 3.5 (15) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Artificial Intelligence, Computational Thinking, AI literacy, Theoretical Computer Science, Psychology, Algorithms, General Mathematics
★ 4.4 (152) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React Redux, React.js, Javascript, Web Development Tools, Middleware, Web Development
★ 4.8 (12) · Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Pay Per Click Advertising, Search Engine Marketing, Customer Retention, Digital Marketing, Paid media, Search Engine Optimization, Online Advertising, Keyword Research, Conversion Funnel Analysis, Digital Marketing Campaigns, Digital Advertising, Marketing Strategy and Techniques, Content Optimization, Marketing, Customer Acquisition Management, Customer Engagement, Lead Generation, Target Audience, Target Market
★ 4.7 (117) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Reporting, Inventory Accounting, Financial Statement Analysis, Depreciation, Cash Control, Financial Statements, Financial Accounting, Fixed Asset, Balance Sheet, Generally Accepted Accounting Principles (GAAP), Accounting, Cost Accounting, Inventory Control Systems, Accounts Receivable, Internal Controls, Capital Expenditure, Equities, Inventory Management System, Investments
★ 4.7 (231) · Intermediate · Course · 1 - 3 Months