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: Exploratory Data Analysis, Statistical Process Controls, Six Sigma Methodology, Lean Methodologies, Statistical Hypothesis Testing, Process Capability, Statistical Analysis, Data Analysis, Continuous Improvement Process, Project Management, Statistics, Work Breakdown Structure, Lean Six Sigma, Operational Excellence, Data Collection, Project Scoping, Process Improvement, Stakeholder Management, Quality Improvement, Quality Management
Intermediate · Specialization · 3 - 6 Months

Dartmouth College
Skills you'll gain: Environment, Environmental Issue, Environmental Science, Sustainable Development, Biology, Hydrology, Water Quality, Systems Thinking, Water Resource Management, Energy and Utilities, Physics, Climate Change Mitigation, Chemistry
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Field-Programmable Gate Array (FPGA), Hardware Design, Systems Design, Application Specific Integrated Circuits, Test Case, Electronics Engineering, Verification And Validation, Electronics, Simulation and Simulation Software, Embedded Systems, Functional Testing, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SQL, Query Languages, Database Management, PostgreSQL, Data Manipulation
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Incident Response, Computer Security Incident Management, Incident Management, Cybersecurity, Cyber Threat Intelligence, Security Management, Cyber Security Policies, Security Awareness, Data Ethics, Data Security, Personally Identifiable Information, AI Security, Technical Communication, Artificial Intelligence
Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Environment, Environmental Science, Life Sciences, Environmental Issue, Biology, Sustainable Development, Natural Resource Management, Climate Change Adaptation, Estimation, Climate Change Mitigation, Experimentation
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Telecommunications, Internet Of Things, Wireless Networks, Emerging Technologies, Communication Systems, Digital Communications, General Networking, Computer Networking, Network Protocols
Mixed · Course · 1 - 3 Months

Tel Aviv University
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Vibe coding, Model Context Protocol, Context Management, AI Workflows, Software Installation, Agentic Workflows, Code Review, System Configuration, Computer Programming Tools, Debugging, Web Development Tools, Software Development, User Interface (UI), Web Development
Intermediate · Course · 1 - 3 Months

Universidad Autónoma Metropolitana
Skills you'll gain: Chemistry, Physical Science, General Science and Research, Materials science, Scientific Methods, Taxonomy, Systems Of Measurement
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, HTML and CSS, Data Structures, Spring Boot, Eclipse (Software), Restful API, Java Programming, Object Oriented Programming (OOP), Model View Controller, Java, Front-End Web Development, Spring Framework, Object Oriented Design, Integrated Development Environments, Javascript, Software Design Patterns, Web Components, Development Environment, Web Applications, Cascading Style Sheets (CSS)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Vector Databases, AI Personalization, Hugging Face, MongoDB, Embeddings, NoSQL, PostgreSQL, Relational Databases, Generative AI, SQL, Databases, LLM Application, Applied Machine Learning, Database Design, Database Management, Artificial Intelligence, Apache Cassandra, Text Mining, Machine Learning, Data Science
Intermediate · Specialization · 1 - 3 Months