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.

Skills you'll gain: Flask (Web Framework), Web Development, Web Applications, Application Development, Web Development Tools, Object-Relational Mapping, Back-End Web Development, Software Development, Database Management, Python Programming, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

University of Maryland, College Park
Skills you'll gain: Brainstorming, User Story, Creative Thinking, Innovation, Design Thinking, Critical Thinking and Problem Solving, Solution Design, Agile Methodology, Problem Solving, Agile Product Development, Empathy, Requirements Analysis, Complex Problem Solving, Risk Management, Lean Methodologies, Process Improvement
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Network Monitoring, Network Administration, Network Security, Firewall, Ansible, System Monitoring, Network Protocols, Security Controls, Software-Defined Networking, Puppet (Configuration Management Tool), Chef (Configuration Management Tool), Network Switches, Real Time Data, Authentications, Scripting, JSON, Automation, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Editing, Student-Centred Learning, Writing and Editing, Student Engagement, Teaching, Instructional Strategies, Peer Review, Writing
Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Java, Java Programming, Dependency Analysis, Docker (Software), JSON, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: TypeScript, Web Development Tools, Debugging, Javascript, Integrated Development Environments, Software Development
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Financial Statements, Microsoft Excel, Excel Formulas, Balance Sheet, Ledgers (Accounting), Financial Data, Bookkeeping, Financial Reporting, Financial Accounting, Profit and Loss (P&L) Management
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Stakeholder Engagement, Business Analysis, Business Intelligence, Business Process, Business Planning, Stakeholder Analysis, Business Process Management, Requirements Elicitation, Analysis, Information Technology, Agile Methodology, Planning, Governance, Information Management, Adaptability
Intermediate · Course · 1 - 4 Weeks
University of California, Irvine
Skills you'll gain: Grammar, Language Competency
Intermediate · Course · 1 - 3 Months

Skills you'll gain: ChatGPT, OpenAI API, Model Deployment, LLM Application, Tool Calling, Large Language Modeling, Prompt Engineering, Application Programming Interface (API), No-Code Development, Python Programming, Software Installation, Open Source Technology, Development Environment, Data Science
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Cascading Style Sheets (CSS), Web Design and Development, User Interface and User Experience (UI/UX) Design, Web Content Accessibility Guidelines
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Debugging, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing, Payment Systems
Advanced · Course · 1 - 3 Months