Functional programming courses can help you learn concepts like first-class functions, immutability, and higher-order functions, along with practical techniques for managing state and side effects. You can build skills in recursive problem-solving, data transformation, and leveraging pure functions for cleaner code. Many courses introduce tools such as Haskell, Scala, and JavaScript, showcasing how these languages facilitate functional programming principles and enhance software development practices.

Skills you'll gain: Test Driven Development (TDD), Unit Testing, Testability, Functional Testing, Test Case, Software Testing, Python Programming, File I/O, File Systems
Intermediate · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: Secure Coding, Computer Programming Tools, C and C++, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Software Development Tools, Exploit development, Debugging, Interoperability, Unix, Embedded Systems, Vulnerability Assessments, Unix Commands, File I/O, Operating Systems, Data Security, Linux, Microsoft Windows
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: MySQL Workbench, Database Design, MySQL, Relational Databases, Database Management, Databases, Database Management Systems, SQL, Data Modeling, Data Import/Export
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: R Programming, Statistical Programming, Statistical Analysis, Debugging, Data Analysis, Simulations, Programming Principles, Integrated Development Environments, Data Import/Export, Data Structures, Data Manipulation, Computer Programming, Performance Tuning, Software Installation
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Web Applications, Back-End Web Development, Expense Management, Application Development, Database Application, Data Visualization, Business Process Automation, Chart.js, Python Programming, Data Modeling, Data Security, GitHub, Javascript, Git (Version Control System)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Pandas (Python Package), Data Analysis, Data Manipulation, Time Series Analysis and Forecasting, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Interactive Data Visualization, Business Intelligence, Data Presentation, Infographics, Data Visualization, Dashboard, Generative AI, Data Ethics, Responsible AI, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), SQL, Data Analysis, Presentations, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Personalization, Mobile Development, Generative AI, Anthropic Claude, LLM Application, Apple iOS, AI Product Strategy, Machine Learning Methods, Application Design, Cloud Development, Data Strategy, Embedded Software, User Interface and User Experience (UI/UX) Design
Intermediate · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Responsible AI, Decision Tree Learning, Data Ethics, Regression Analysis, Artificial Intelligence, Machine Learning, Statistical Modeling, Python Programming, Artificial Intelligence and Machine Learning (AI/ML), Logistic Regression, Deep Learning, Artificial Neural Networks
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, User Interface (UI), Browser Compatibility, Javascript, Mobile Development, Interactive Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, Algorithms, Graph Theory, Programming Principles, Theoretical Computer Science, Computer Science, Computer Programming, Python Programming, Pandas (Python Package), Machine Learning Algorithms, Computational Thinking, C++ (Programming Language), Data Architecture, Random Forest Algorithm, Performance Tuning, Object Oriented Programming (OOP), Network Analysis, Program Development, Problem Solving, Debugging
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Oracle SQL Developer, Oracle Databases, PL/SQL, Database Design, SQL, Database Architecture and Administration, Stored Procedure, Database Management, Data Management, Network Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks