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.

Johns Hopkins University
Skills you'll gain: Mathematical Modeling, Graphing, Algebra, General Mathematics, Applied Mathematics, Arithmetic
Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Environment, Environmental Science, Life Sciences, Environmental Issue, Biology, Sustainable Development, Natural Resource Management, Climate Change Adaptation, Estimation, Climate Change Mitigation, Experimentation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Interviewing Skills, Applicant Tracking Systems, AI Enablement, Professional Development, Google Gemini, Generative AI, Personal Attributes, Problem Solving, Communication
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Modeling, Financial Analysis, Working Capital, Business Valuation, Financial Forecasting, Dashboard, Feature Engineering, Model Evaluation, Applied Machine Learning, Income Statement, Forecasting, Real Time Data, Machine Learning, Power BI, Extract, Transform, Load, Tableau Software, Financial Data, Finance
Beginner · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: Vibe coding, Model Context Protocol, Context Management, AI Workflows, Software Installation, Agentic Workflows, Code Review, System Configuration, Computer Programming Tools, Debugging, Web Development Tools, Software Development, User Interface (UI), Web Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Databases, Data Integrity
Beginner · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: Liberal Arts, World History, Sociology, Ancient History, Storytelling, Writing
Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Software Engineering, Programming Principles, Computer Programming, Software Design, Predictive Modeling, Algorithms, Data Structures, Performance Testing, File I/O, Debugging, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Calculus, Integral Calculus, Applied Mathematics, Probability & Statistics, Geometry, Probability, Advanced Mathematics, Torque (Physics), Statistics, Mechanics, Mathematical Modeling, Physics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Musical Composition, Music, Post-Production, Instrumental Music, Media Production, Creativity, Editing
Mixed · Course · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Computational Logic, Logical Reasoning, Deductive Reasoning, General Mathematics
Advanced · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Prompt Engineering, Excel Formulas, Microsoft Copilot, Microsoft Excel, Pivot Tables And Charts, Data Cleansing, Data Visualization, Excel Macros, Data Literacy, Data Presentation, Data Manipulation, Spreadsheet Software, Data Entry, Data Quality, Data Transformation, Data Validation, Data Analysis, Workflow Management, AI Workflows, Decision Making
Beginner · Course · 1 - 4 Weeks