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.

Pohang University of Science and Technology(POSTECH)
Skills you'll gain: Blockchain, Application Development, Web Applications, Payment Systems, Cryptography, Investments, FinTech, Digital Assets, Open Source Technology, Distributed Computing, Network Model, Transaction Processing, Algorithms, Fundraising, Financial Regulations, Governance
Intermediate · Course · 1 - 3 Months

Skills you'll gain: C# (Programming Language), ASP.NET, Maintainability, Object Oriented Design, .NET Framework, JSON, Development Environment, Web Development, Application Frameworks, Restful API, Code Reusability, Microsoft Development Tools, Microsoft Visual Studio, File I/O, Web Applications, UI Components, Object Oriented Programming (OOP), Back-End Web Development, Functional Design, Application Deployment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Petroleum Industry, Oil and Gas, Environmental Regulations, Pump Stations, Process Engineering, Chemical Engineering, Water Quality, Three-Phase, Equipment Design, Engineering Calculations
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Manufacturing Processes, Semiconductors, Mechanical Engineering, Materials science, Structural Analysis, Production Process, Process Engineering, Mechanics, Reliability
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Prompt Engineering, Prompt Patterns, LLM Application, Generative AI Agents, AI Workflows, AI Orchestration, Artificial Intelligence and Machine Learning (AI/ML), Agentic Workflows, Large Language Modeling, Tool Calling, Agentic systems, Debugging, Verification And Validation, Quality Assurance
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Remote Access Systems, Windows Servers, iSCSI Configuration, Virtual Private Networks (VPN), Microsoft Servers, Microsoft Windows, Network Administration, Microsoft Azure, Network Infrastructure, Public Key Infrastructure, Data Storage Technologies, Infrastructure As A Service (IaaS), Data Storage, Network Security, Cloud Storage, Hybrid Cloud Computing, Proxy Servers, File Management, File Systems
Intermediate · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Social Studies, Political Sciences, Diversity Awareness, Social Justice, Culture, Sociology, Social Sciences, Cultural Diversity, Public Policies, Policy Analysis, International Relations, Court Systems, Governance
Beginner · Course · 1 - 3 Months

Skills you'll gain: QuickBooks (Accounting Software), Accounts Payable and Receivable, Reconciliation, Accounts Receivable, Financial Reporting, Accounts Payable, Data Cleansing, Tax Preparation, Tax Management, Accounting Software, Data Migration, Data Import/Export, Inventory Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Azure DevOps, GitHub, Git (Version Control System), Version Control, Development Environment, Microsoft Development Tools, Devops Tools, Continuous Integration, DevOps, CI/CD, Microsoft Azure, Software Versioning, Microsoft Visual Studio, Collaborative Software, Software Development Tools, Authorization (Computing), Security Controls, Code Review, Role-Based Access Control (RBAC), Open Source Technology
Intermediate · Course · 1 - 3 Months

Harvard Business Review
Skills you'll gain: Team Performance Management, Teamwork, Team Building, Team Collaboration, Team Management, Virtual Teams, Collaboration, Intercultural Competence, Team Leadership, Conflict Management, Team Motivation, Performance Measurement, Performance Analysis, Cooperation, Productivity, Cultural Diversity, Cultural Sensitivity, Drive Engagement
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Molecular Biology, Life Sciences, Biology, Molecular, Cellular, and Microbiology, Cell Biology, Biotechnology, Oncology, Environmental Issue, Biochemistry, Environment, Healthcare Ethics, Emerging Technologies, Ethical Standards And Conduct
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Web Development, Web Applications, Web Design, Front-End Web Development
Beginner · Guided Project · Less Than 2 Hours