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.

University of Colorado Boulder
Skills you'll gain: Climate Change Adaptation, Persuasive Communication, Environmental Issue, Media and Communications, Environmental Policy, Climate Change Mitigation, Social Sciences, Scientific Methods, Environmental Resource Management, Political Sciences, Environmental Science, Hydrology, Energy and Utilities
Beginner · Course · 1 - 4 Weeks

Universitat Politècnica de València
Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Geospatial Information and Technology, Geographic Information Systems, Apache Hadoop, Spatial Data Analysis, Geospatial Mapping, Spatial Analysis, Big Data, Matplotlib, Data Processing, Computational Thinking, Distributed Computing, Data Manipulation, Python Programming
Beginner · Course · 1 - 3 Months

Skills you'll gain: Endpoint Security, Zero Trust Network Access, IT Security Architecture, Data Security, Cloud Security, Cyber Security Strategy, Microsoft Azure, Security Information and Event Management (SIEM), Security Controls, Cybersecurity, Threat Modeling, Cyber Threat Intelligence, Application Security, Cyber Security Policies, API Design, Infrastructure Security, Regulatory Compliance, Security Requirements Analysis, Identity and Access Management, Compliance Management
Advanced · Course · 1 - 3 Months

Skills you'll gain: Sprint Retrospectives, Backlogs, Scrum (Software Development), Sprint Planning, Team Building, Goal Setting, Team Performance Management, Agile Project Management, Agile Methodology, Prioritization, Process Improvement, Cross-Functional Collaboration, Accountability, Stakeholder Engagement, Product Management, Decision Making
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Identity and Access Management, Google Cloud Platform, Cloud Infrastructure, Cloud Computing, Solution Architecture, Cloud Management, Data Storage, Cloud Computing Architecture, Security Management, System Monitoring, Encryption, NoSQL, Relational Databases
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Brand Strategy, Brand Management, Branding, Storytelling, Brand Awareness, Brand Loyalty, Marketing Psychology, Marketing Strategies, Marketing, Target Market, Consumer Behaviour, Governance, Portfolio Management, Persona Development, Diversity and Inclusion, Value Propositions, Customer Insights
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Safety Culture, Drive Engagement, Team Management, Team Leadership, Team Building, Diversity and Inclusion, Team Motivation, Business Ethics, Teamwork, Diversity Equity and Inclusion Initiatives, Employee Engagement, Creativity, Workplace inclusivity, Ethical Standards And Conduct, Innovation, Motivational Skills, Problem Solving, Adaptability, Culture, Leadership Development
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Vibe coding, Microsoft Copilot, GitHub, Code Review, AI Personalization, Prompt Engineering, LLM Application, Integrated Development Environments, Computer Programming Tools, Application Development, Software Development, Web Development
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: C++ (Programming Language), File I/O, Object Oriented Programming (OOP), Computer Programming, Programming Principles, C (Programming Language), Software Design, Algorithms, Data Structures
Mixed · Course · 1 - 3 Months

Skills you'll gain: MLOps (Machine Learning Operations), Package and Software Management, Unit Testing, Testability, Python Programming
Intermediate · Course · 1 - 4 Weeks

Erasmus University Rotterdam
Skills you'll gain: Policy Development, Conflict Management, Ethical Standards And Conduct, Crisis Intervention, Policy Analysis, Emergency Response, Mitigation, International Relations, Case Studies, Risk Analysis, Community Development, Risk Management, Research, Climate Change Adaptation, Socioeconomics
Intermediate · Course · 1 - 3 Months