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.

Coursera
Skills you'll gain: Customer Retention, Loyalty Programs, Customer Relationship Management (CRM) Software, Customer Data Management, Customer Engagement, Customer Relationship Management, Customer Relationship Building, Customer Analysis, Target Audience, HubSpot CRM, Customer experience strategy (CX), Marketing Automation, Customer Insights, Market Analysis, Email Automation
Intermediate · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Incident Response, Digital Forensics, Network Security, Computer Security Incident Management, Cloud Computing Architecture, Penetration Testing, Cloud Services, Business Continuity, Cloud Deployment, Disaster Recovery, Security Controls, Generative AI, Configuration Management, Governance, Cybersecurity, Data Storage, Peripheral Devices, Application Security, Information Technology, Cryptography
Beginner · Professional Certificate · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Machine Controls, Control Systems, Embedded Software, Laboratory Experience, Electronic Systems, Embedded Systems, Power Electronics, Electronic Hardware, Three-Phase, Electrical Equipment, Hardware Design, Electrical Engineering, Electrical Systems, Electronics, Electrical Power, Basic Electrical Systems, Automation Engineering, Integration Testing, Electronic Components, Torque (Physics)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Salesforce
Skills you'll gain: Sales Process, Sales, Salesforce, Sales Operations, Customer Relationship Management, B2B Sales, Data Management, Customer Data Management, Databases, Business-To-Consumer
Beginner · Course · 1 - 4 Weeks

Intuit
Skills you'll gain: Fixed Asset, Inventory Control, Depreciation, Asset Management, Inventory Accounting, Bookkeeping, Financial Accounting, Accounts Receivable, Inventory Management System, General Ledger, Accounting, Financial Statements, Financial Reporting
Beginner · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Energy and Utilities, Electrical Power, Electrical Systems, Chemistry, Sustainable Technologies, System Requirements, Technical Standard, Manufacturing and Production, Engineering Calculations, Performance Testing
Beginner · Course · 1 - 4 Weeks

Harvard Business Review
Skills you'll gain: Strategic Thinking, Strategic Leadership, Organizational Strategy, Innovation, Business Planning, Stakeholder Engagement, Business Strategy, Proactivity, Creative Thinking, Ideation, Creative Problem-Solving, Product Improvement, Growth Strategies, Critical Thinking, New Product Development, Problem Solving, Decision Making, Collaboration
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Computational Logic, Logical Reasoning, Deductive Reasoning, Theoretical Computer Science, Computer Science, Critical Thinking, Computational Thinking, Business Logic, Algorithms, Mathematical Modeling, Problem Solving, Strategic Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Selenium (Software), White-Box Testing, Scalability, Software Testing, Web Applications, Test Automation, Test Script Development, Automation, Scenario Testing, Maintainability, Hypertext Markup Language (HTML)
Beginner · Specialization · 1 - 3 Months

University of California, Davis
Skills you'll gain: Chemical Engineering, Hazard Analysis, Process Engineering, Hazard Communication (HazCom), Safety Assurance, Occupational Health, Safety Training, Risk Management, Environment Health And Safety, Process Control, Accident Prevention, Risk Analysis, Incident Management, Safety Standards, Failure Analysis, Risk Mitigation, Personal protective equipment, Risk Management Framework, Engineering Analysis, Safety and Security
Advanced · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Content Performance Analysis, Content Marketing, Content Strategy, Marketing Effectiveness, Strategic Prioritization, Target Audience, Marketing Planning, Content Creation, Prioritization, Persona Development, Performance Measurement, Data-Driven Decision-Making, Web Analytics, Key Performance Indicators (KPIs), Spreadsheet Software
Intermediate · Course · 1 - 4 Weeks

University of Geneva
Skills you'll gain: Water Resources, Diplomacy, Water Resource Management, International Relations, Mediation, Conflict Management, Negotiation, Governance, Environmental Laws, Data Collection
Intermediate · Course · 1 - 3 Months