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.

Ball State University
Skills you'll gain: Cryptography, Application Security, Encryption, Authentications, Cybersecurity, Cryptographic Protocols, Data Encryption Standard, Advanced Encryption Standard (AES), Email Security, Network Security, Information Systems Security, Secure Coding, Key Management, Application Development, Public Key Infrastructure, Network Protocols, Algorithms, Data Integrity
★ 5 (8) · Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, Amazon Web Services, Cloud Infrastructure, Computing Platforms, Cloud Computing, Cloud Security, Cloud Platforms, Cloud Computing Architecture, Public Cloud, Amazon Elastic Compute Cloud, User Provisioning, Cloud Deployment, Infrastructure As A Service (IaaS), Authentications, Cloud Services, Cloud Technologies, Authorization (Computing), Role-Based Access Control (RBAC), User Accounts
★ 3.5 (28) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Responsible AI, AI Product Strategy, AI literacy, Artificial Intelligence, LLM Application, AI Workflows, Generative AI Agents, Agentic Workflows, Prompt Engineering, Generative AI, AI Orchestration, Large Language Modeling, Model Evaluation, Open Source Technology, System Requirements, Computer Hardware
Intermediate · Course · 1 - 3 Months

The University of North Carolina at Chapel Hill
Skills you'll gain: Music History, Music, World Music, Oral Expression, Aesthetics, World History, Social Studies, Liberal Arts, Performing Arts, Public History, Art History, Cultural Diversity
★ 4.5 (406) · Mixed · Course · 1 - 3 Months
Yonsei University
Skills you'll gain: Capital Budgeting, Financial Statements, Financial Statement Analysis, Business Valuation, Financial Analysis, Cash Flow Forecasting, Strategic Decision-Making, Financial Modeling, Income Statement, Return On Investment, Entrepreneurial Finance, Financial Forecasting, Financial Reporting, Cash Flows, Balance Sheet, Financial Data, Excel Formulas, Microsoft Excel, Financial Acumen, Case Studies
★ 4.4 (515) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Cryptography, Cryptographic Protocols, Data Integrity, Encryption, Authentications, Data Security, Data Encryption Standard, Advanced Encryption Standard (AES), Digital Communications
★ 4.5 (102) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Excel Macros, Data Visualization, Prompt Engineering, Excel Formulas, Microsoft Excel, Data Presentation, Pivot Tables And Charts, Microsoft Copilot, Data Visualization Software, Data Storytelling, Spreadsheet Software, Forecasting, Dashboard Creation, Report Writing, Data Cleansing, Data Analysis, Data Synthesis, Predictive Modeling, Workflow Management, Data Manipulation
★ 4.3 (522) · Beginner · Professional Certificate · 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Data Presentation, Business Analytics, Data Literacy, Business Analysis, Business Strategy, Accounting, Organizational Effectiveness, Analytical Skills, Organizational Structure, General Accounting, Organizational Strategy, Business Communication, Marketing, Financial Accounting, Strategic Marketing, Strategic Thinking, Innovation, Product Lifecycle Management, Value Propositions
★ 4.9 (16) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Shiny (R Package), Dashboard Creation, Dashboard, Ggplot2, Interactive Data Visualization, Data Visualization Software, R (Software), Application Development, Data Sharing, UI Components, Application Deployment
★ 4.9 (72) · Mixed · Course · 1 - 4 Weeks

Sage Publications
Skills you'll gain: Brand Management, Design Thinking, Branding, Brand Strategy, Brand Marketing, Crisis Management, Global Marketing, Performance Measurement, Innovation, Case Studies, Business Ethics, Digital Brand Strategy, Ethical Standards And Conduct, Consumer Behaviour, Storytelling
Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Object Oriented Programming (OOP), Java, Object Oriented Design, Java Programming, Computer Programming
★ 4.6 (54) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: MLOps (Machine Learning Operations), Data Processing, Model Deployment, Data Pipelines, Google Cloud Platform, Applied Machine Learning, Analytics, Database Development, Data Infrastructure, Model Training, Data Architecture, Data Analysis, Security Controls, Machine Learning, Data Modeling, Cloud Security, Data Visualization, Interactive Data Visualization, Data Storage Technologies
★ 4.7 (14) · Advanced · Course · 1 - 3 Months