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.

Council on Foreign Relations
Skills you'll gain: Climate Change Adaptation, Climate Change Mitigation, Energy and Utilities, Social Justice, Environmental Issue, Sustainable Development, Environmental Policy, Emerging Technologies, Sustainable Technologies, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: C (Programming Language), Embedded Systems, Software Visualization, Computer Engineering, Embedded Software, System Programming, Computer Science, Computer Programming, Operating Systems, Data Structures, Linux
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Pain Management, Public Health, Health Policy, Substance Abuse, Hospice, Research, Epidemiology, Chronic Diseases, Oncology, Pharmacology, Mental Health, Nutrition and Diet
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, MITRE ATT&CK Framework, Threat Management, Cybersecurity, Cyber Security Strategy, Application Security, Threat Detection, Security Strategy, Microsoft Azure, Cloud Security, Internet Of Things, Secure Coding, Network Security, Vulnerability Assessments, Identity and Access Management, Asset Management
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Microsoft Windows, Windows PowerShell, Operating System Administration, Command-Line Interface, Operating Systems, Control Panels, System Configuration, OS Process Management, Network Administration, User Accounts, Graphical Tools
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management Framework, Authentications, IT Management, Security Management, Identity and Access Management, Security Controls, Authorization (Computing), Security Awareness, Single Sign-On (SSO), Data Ethics, Computer Security Awareness Training, Multi-Factor Authentication, Change Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Networking, Enterprise Architecture, Virtualization, Network Architecture, Network Planning And Design, Virtual Private Networks (VPN), Computer Networking, Virtual Machines, Network Infrastructure, Wide Area Networks, Software-Defined Networking, Wireless Networks, Local Area Networks, Network Switches, Network Routers, Network Protocols
Intermediate · Course · 1 - 3 Months
University of Pennsylvania
Skills you'll gain: Demography, Market Trend, Trend Analysis, International Relations, Socioeconomics, Global Marketing, Social Sciences, Systems Thinking, Cultural Diversity, Political Sciences, Financial Systems, Economics, Business Economics, Governance
Mixed · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Software Quality Assurance, Test Automation, Usability Testing, Quality Assurance, Software Testing, Usability, Test Tools, Software Development Life Cycle, Selenium (Software), Acceptance Testing, Test Script Development, Back-End Web Development, API Testing, Test Case, User Experience Design, Human Computer Interaction, Functional Testing, Cloud Computing, Database Management Systems, Leadership
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Human Factors, Human Factors Engineering, Control Systems, Sports Medicine, Human Musculoskeletal System, Mechanics, Human Centered Design, Product Design, Injury Prevention, Rehabilitation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: AWS Kinesis, Amazon Web Services, Amazon CloudWatch, AWS Identity and Access Management (IAM), Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Data Security, Amazon S3, Authentications, AWS CloudFormation, Key Management, Microservices, Real Time Data, Encryption
Intermediate · Course · 1 - 4 Weeks

Niel Asher Education
Skills you'll gain: Manual Therapy, Patient Evaluation, Rehabilitation, Exercise Therapy, Mobility Assistance, Orthopedics, Sports Medicine, Clinical Assessment, Physical Therapy, Exercise Science, Athletic Training, Kinesiology, Health Assessment, Human Musculoskeletal System, Pain Management, Respiration, Respiratory Therapy, Education and Training, Anatomy, Health And Wellness Coaching
Intermediate · Specialization · 1 - 3 Months