Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, Data Structures, Algorithms, Maintainability, Performance Tuning, File Management, Debugging
Intermediate · Course · 1 - 3 Months

Interactive Brokers
Skills you'll gain: Market Trend, Portfolio Risk, Technical Analysis, Risk Management, Market Data, Trend Analysis, Investment Management, Investments, Portfolio Management, Equities
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: AI Orchestration, LLM Application, AI Workflows, OpenAI API, Tool Calling, Retrieval-Augmented Generation, Prompt Engineering, Agentic systems, Data Pipelines
Intermediate · Project · Less Than 2 Hours

28DIGITAL
Skills you'll gain: Cybersecurity, Network Security, Information Systems Security, Cyber Threat Intelligence, Deep Learning, Applied Machine Learning, Responsible AI, Intrusion Detection and Prevention, Fraud detection, Malware Protection, Natural Language Processing, Artificial Intelligence, Anomaly Detection, Machine Learning, Classification Algorithms, Data Preprocessing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Wrangling, Data Import/Export
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Continuous Integration, CI/CD, Application Deployment, Node.JS, Test Automation, Software Development Tools, Unit Testing, Git (Version Control System), Software Development, GitHub, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Post-Production, Storytelling, Video Editing, Timelines, Color Theory, Cinematography, Web Content Accessibility Guidelines, Music, Editing
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Apache Hadoop, Big Data, Apache Hive, Apache Spark, NoSQL, Data Infrastructure, File Systems, Data Processing, Data Management, Analytics, Data Science, Databases, SQL, Query Languages, Data Manipulation, Java, Data Structures, Distributed Computing, Scripting Languages, Performance Tuning
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Self-Awareness, Personal Development, Growth Mindedness, Initiative and Leadership, Personal Attributes, Accountability, Leadership, Resilience, Visionary, Goal Setting, Social Impact
Build toward a degree
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Network Architecture, Network Planning And Design, Cloud Computing Architecture, Virtual Networking, Google Cloud Platform, Network Routing, Computer Networking, Network Security, Network Troubleshooting, Network Analysis, Virtual Private Networks (VPN), Firewall, Load Balancing, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: TCP/IP, Network Architecture, Network Routers, Networking Hardware, General Networking, Network Security, Dynamic Host Configuration Protocol (DHCP), Network Infrastructure, Network Troubleshooting, Computer Networking, Network Protocols, Network Switches, Virtual Local Area Network (VLAN), Scalability
Beginner · Course · 3 - 6 Months

Skills you'll gain: Prompt Engineering, LLM Application, Model Deployment, Responsible AI, Application Deployment, Application Development, Hugging Face, Data Ethics, Generative AI, AI Security, Application Security, Continuous Monitoring
Intermediate · Course · 1 - 4 Weeks