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: Network Security, Encryption, OSI Models, Network Architecture, Computer Networking, Remote Access Systems, TCP/IP, Network Infrastructure, Network Protocols, Wireless Networks, Virtual Private Networks (VPN), Virtual Networking, Endpoint Security, Cloud Security, Software-Defined Networking
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, Cloud Computing Architecture, DevOps, Virtualization, Cloud Computing, Cloud Infrastructure, Containerization, Infrastructure As A Service (IaaS), Software As A Service, Virtual Networking, Virtual Machines, Platform As A Service (PaaS)
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Video Game Development, Branding, Organizational Structure, Organizational Strategy, Game Design, Competitive Analysis, Strategic Partnership, Brand Management, Team Management, Entrepreneurial Finance, Fundraising and Crowdsourcing
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: LLM Application, LangChain, Large Language Modeling, Model Evaluation, ChatGPT, Generative AI, Prompt Engineering, Application Development, Analytics, Natural Language Processing, Benchmarking
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Development, Javascript, Web Design, JavaScript Frameworks, Web Development Tools, Web Servers, Web Design and Development, Browser Compatibility, Web Content, Web Analytics and SEO, Server Side, Hypertext Markup Language (HTML), Web Applications, Web Frameworks, Front-End Web Development, Event-Driven Programming, Web Content Accessibility Guidelines, Software Development
Mixed · Course · 1 - 3 Months

Skills you'll gain: C# (Programming Language), .NET Framework, Microsoft Visual Studio, Maintainability, Object-Relational Mapping, Programming Principles, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Chris Croft Training
Skills you'll gain: Cost Reduction, Cost Control, Operational Efficiency, Operating Cost, Customer Analysis, Cost Accounting, Cost Benefit Analysis, Expense Management, Cost Estimation, Gross Profit, Profit and Loss (P&L) Management, Cost Management, Inventory Control, Process Optimization, Marketing Budgets, Management Accounting, Lean Methodologies, Workforce Management, Organizational Effectiveness, Leadership
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Earned Value Management, Team Motivation, Stakeholder Engagement, Project Management Institute (PMI) Methodology, Project Planning, Stakeholder Management, Team Leadership, Project Management, Project Management Life Cycle, Project Scoping, Project Documentation, Project Schedules, Agile Project Management, Quality Management, Work Breakdown Structure, Risk Management, Cost Management, Scope Management, Decision Making
Beginner · Course · 1 - 3 Months

Skills you'll gain: Financial Forecasting, Financial Data, Variance Analysis, Financial Analysis, Budgeting, Financial Modeling, Cost Management, Supervised Learning, Financial Planning, Applied Machine Learning, Predictive Modeling, Risk Modeling, Data-Driven Decision-Making, Business Analytics, Risk Analysis, Credit Risk, Model Evaluation, Data Pipelines, Automation
Intermediate · Course · 1 - 3 Months

École Polytechnique
Skills you'll gain: Emerging Technologies, Communication Systems, Telecommunications, Cryptography, Simulations, Physics, Computing Platforms, Algorithms, Mathematical Modeling
Mixed · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Data Integrity, Encryption, Authentications, Information Assurance, Data Security, Public Key Cryptography Standards (PKCS)
Intermediate · Course · 1 - 4 Weeks

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