Cryptocurrency and blockchain courses can help you learn how distributed ledgers work, how transactions are verified, and how major blockchain networks are structured. You can build skills in wallet management, smart contract basics, and evaluating blockchain use cases. Many courses introduce tools such as crypto exchanges, block explorers, and frameworks used to experiment with decentralized applications.

University of Pennsylvania
Skills you'll gain: Risk Management, Organizational Structure, Organizational Strategy, Strategic Leadership, Art History, Organizational Effectiveness, Customer Analysis, Market Opportunities, Organizational Leadership, Strategic Communication, Stakeholder Communications, Liberal Arts, Fundraising, Target Audience, Value Propositions
Mixed · Course · 1 - 3 Months

Dassault Systèmes
Skills you'll gain: SolidWorks (CAD), Computer-Aided Design, Drafting and Engineering Design, Engineering Drawings, 3D Modeling, Mechanical Engineering
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Control Systems, Process Control, Machine Controls, Engineering, Scientific, and Technical Instruments, Automation Engineering, Manufacturing Processes, Embedded Software, Electrical and Computer Engineering, Embedded Systems, Electronics, Semiconductors, Laboratory Equipment, Electronics Engineering, Test Equipment, Medical Devices, Performance Tuning, Electronic Components, Mechanical Design, Product Testing, Mathematical Modeling
Build toward a degree
Intermediate · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Sustainable Design, Corporate Sustainability, Environmental Social And Corporate Governance (ESG), Sustainable Business, Sustainability Reporting, Sustainable Engineering, Sustainable Development, Business Ethics, Sustainability Standards, Sustainable Systems, Operations Management, Supply Chain Management, Supply Chain Planning, Supply Chain, Manufacturing Operations, Strategic Sourcing, Supply Chain Systems, Procurement, Supplier Relationship Management, Product Design
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Incident Response, Computer Security Incident Management, Threat Detection, Event Monitoring, Security Information and Event Management (SIEM), Incident Management, Security Management, Continuous Monitoring, Network Security, Network Monitoring, Splunk, Network Analysis, TCP/IP, Network Protocols, Query Languages
Beginner · Course · 1 - 4 Weeks

École Polytechnique
Skills you'll gain: Vibrations, Mechanics, Engineering Analysis, Mathematical Modeling, Structural Analysis, Mechanical Engineering, Civil Engineering
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Prometheus (Software), System Monitoring, Grafana, Site Reliability Engineering, Continuous Monitoring, Interactive Data Visualization, Query Languages, Anomaly Detection, Software Visualization, Linux, YAML, Docker (Software), Incident Management, Configuration Management, Real Time Data, Analysis
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Generative Adversarial Networks (GANs), Artificial Intelligence and Machine Learning (AI/ML), Responsible AI, Applied Machine Learning, Data Ethics, Transfer Learning, Federated Learning, Scalability, Machine Learning, Distributed Computing, Model Evaluation, MLOps (Machine Learning Operations), Microsoft Azure, Information Privacy
Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Algorithms, Network Routing, Network Model, Graph Theory, Operations Research, Theoretical Computer Science, Network Analysis, Data Structures, Computational Thinking, Linear Algebra, Computer Science, Big Data, Python Programming, Programming Principles, Computational Logic, Probability & Statistics
Advanced · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Spreadsheet Software, Financial Modeling, Regression Analysis, Excel Formulas, Business Modeling, Simulation and Simulation Software, Operations Research, Microsoft Excel, Google Sheets, Probability Distribution, Analysis, Forecasting, Predictive Analytics, Risk Analysis, Statistical Methods, Data Analysis Software, Process Optimization, Decision Tree Learning
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Ethics, Responsible AI, Compliance Auditing, Ethical Standards And Conduct, Compliance Management, Auditing, Technical Documentation, Case Studies, Project Documentation, Model Deployment, Model Evaluation, Business Ethics, MLOps (Machine Learning Operations), Accountability, Mitigation, Data Quality
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Power, Electric Power Systems, Electrical Systems, Control Systems, Electrical Substation, Electrical Equipment, Energy and Utilities, Electrical Safety, Plant Operations and Management, High Voltage, Applied Mathematics, Power Electronics, Automation Engineering, Basic Electrical Systems, Electrical Engineering, Low Voltage, Process Control, Mathematical Modeling, Matlab, Three-Phase
Intermediate · Specialization · 3 - 6 Months