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 California, Irvine
Skills you'll gain: Grammar, English Language, Language Competency, Language Learning
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Statistical Inference, Business Analytics, Supply And Demand, Descriptive Statistics, Sampling (Statistics), Market Dynamics, Statistical Hypothesis Testing, Financial Systems, Bank Regulations, Financial Policy, Banking, International Finance, Data-Driven Decision-Making, Data Analysis, Data Presentation, Statistical Analysis, Economics, Peer Review, Analytics, Business Economics
Build toward a degree
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Spring Framework, JUnit, Unit Testing, Software Configuration Management, Application Servers, Enterprise Application Management, Java, Software Design Patterns, Extensible Markup Language (XML), Dependency Analysis, Transaction Processing
Intermediate · Course · 1 - 4 Weeks

ISAE-SUPAERO
Skills you'll gain: Hazard Analysis, Vibrations, Control Systems, Mechanics, Engineering Analysis, Mathematical Modeling
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Istio, Kubernetes, Cloud-Native Computing, Containerization, OpenShift, Docker (Software), CI/CD, DevOps, Application Deployment, Command-Line Interface, Scalability, Microservices, YAML
Intermediate · Course · 1 - 3 Months

Tufts University
Skills you'll gain: Statistical Hypothesis Testing, Statistical Inference, Microsoft Excel, Quantitative Research, Probability & Statistics, Statistical Analysis, Analytical Skills, Statistics, Business Analytics, Python Programming, Technical Communication
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Social Media Strategy, Social Media Campaigns, Social Media Marketing, Marketing Communications, Digital Media Strategy, Marketing Planning, Customer Insights, Content Performance Analysis, Driving engagement, Plan Execution, Earned Media, Content Creation, Content Strategy, Owned Media, Paid media, Goal Setting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Database Management, Databases, Relational Databases, Database Architecture and Administration, Data Security, User Accounts, Secure Coding, SQL, Application Security, Vulnerability Scanning, NoSQL, Role-Based Access Control (RBAC), Encryption, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Mobile Development, Web Development Tools, Unit Testing, Javascript, React Native, JSON, Package and Software Management, Computer Programming, Node.JS, Object Oriented Programming (OOP), Software Testing, Functional Design
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, JUnit, Object Oriented Programming (OOP), Software Design Patterns, Java, Unified Modeling Language, Software Design, Java Programming, Software Architecture, Model View Controller, Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Prototyping, Manufacturing Processes, Materials science, Manufacturing and Production, Mechanical Engineering, 3D Modeling, Safety Training, Personal protective equipment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Data Ethics, Generative AI, Risking, Business Ethics, Legal Risk, Socioeconomics, Ethical Standards And Conduct, Environmental Social And Corporate Governance (ESG), Information Privacy, Automation, Workforce Development, Accountability
Beginner · Course · 1 - 4 Weeks