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.

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Reinforcement Learning, Computational Logic, Agentic systems, Bayesian Network, Decision Intelligence, Machine Learning, Bayesian Statistics, AI literacy, Markov Model, Algorithms, Computational Thinking, Probability, Model Optimization, Probability & Statistics, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, PostgreSQL, Query Languages, Database Management, Database Systems, Data Manipulation
Advanced · Guided Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: Environment, Environmental Issue, Environmental Science, Environmental Resource Management, Environment and Resource Management, Sustainable Development, Water Resources, Biology, Hydrology, Life Sciences, Water Quality, Pollution Prevention, Systems Thinking, Energy and Utilities, Climate Change Mitigation
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Simulation and Simulation Software, Simulations, Mathematical Modeling, Electrical Engineering, Power Electronics, Electronic Components, Electric Power Systems, Matlab, Model Evaluation, Model Optimization, Electrical Systems, Engineering Calculations, Laboratory Testing, Mathematical Software, Laboratory Research, Estimation
Intermediate · Course · 1 - 3 Months

Skillshare
Skills you'll gain: Video Editing, Animations, Timelines, Post-Production, Storytelling, Motion Graphics, Color Theory, Video Production, Photo/Video Production and Technology, Color Matching, Videography, Visual Storytelling, Editing, Cinematography, Image Quality, Data Import/Export, Music, Knowledge of Apple Software, File Management, Performance Tuning
Beginner · Specialization · 3 - 6 Months

Princeton University
Skills you'll gain: Philanthropy, Social Impact, Ethical Standards And Conduct, Decision Making, Social Justice, Behavioral Economics, Program Evaluation, Economic Development
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Excel Macros, Programming Principles, Visual Basic (Programming Language), Program Development, Object Oriented Programming (OOP), Computer Programming, Debugging, Data Cleansing, Problem Solving, Code Reusability, Spreadsheet Software, Data Management, Automation
Beginner · Course · 1 - 3 Months
University of Geneva
Skills you'll gain: Portfolio Management, Wealth Management, Risk Management, Financial Systems, Investment Management, Financial Market, Portfolio Risk, Capital Markets, Risk Analysis, Risk Modeling, Investments, Asset Management, Performance Measurement, Market Dynamics, Environmental Social And Corporate Governance (ESG), Financial Planning, Securities (Finance), Risk Appetite, Finance, Equities
Beginner · Specialization · 3 - 6 Months

Tel Aviv University
Mixed · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: HVAC, Occupational Hygiene, Cleanliness, Building Services Engineering, Pollution Prevention, Environmental Monitoring, Infection Control, Occupational Health, Safety Standards, Environment Health And Safety, Risk Control, Radiation Protection, Thermal Management, Respiratory Care, Mechanical Ventilation, Health Assessment, Public Health and Disease Prevention, Analytical Testing, Microbiology
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Statistical Reporting, Data Visualization, Big Data, SQL, Interactive Data Visualization, Query Languages, Data Import/Export, Google Cloud Platform, Data Warehousing, Data Sharing, Analytics
Beginner · Guided Project · Less Than 2 Hours
Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Semiconductors, Electronic Systems, Electronic Components, Electronics, Electronics Engineering, Electronic Hardware, Electrical Engineering, Materials science, Physics
Intermediate · Course · 1 - 3 Months