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.

Columbia University
Skills you'll gain: Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Markov Model, Deep Learning, Data-Driven Decision-Making, Decision Support Systems, Simulations, Probability Distribution, Statistical Methods
Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Open Web Application Security Project (OWASP), Encryption, Application Security, Vulnerability Assessments, Data Security, Exploitation techniques, Security Controls, Authentications, Vulnerability Management, Personally Identifiable Information
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Spring Framework, Object-Relational Mapping, Transaction Processing, Data Persistence, Database Systems, Java, Restful API, Web Services, Web Applications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: C and C++, C++ (Programming Language), Object Oriented Programming (OOP), Development Environment, Computer Programming, Microsoft Visual Studio, Apple Xcode, Performance Tuning, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsible AI, Containerization, Prompt Engineering, AI Orchestration, Scalability, AI Workflows, Application Deployment, Kubernetes, Agentic Workflows, Azure Active Directory, System Monitoring, LangChain, Generative AI Agents, Microservices, Microsoft Azure, Artificial Intelligence, Distributed Computing, Serverless Computing, Natural Language Processing, Reinforcement Learning
Intermediate · Professional Certificate · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Modeling, R Programming, Data Analysis, Data Ethics, Statistical Methods, Regression Analysis, Predictive Modeling, Mathematical Modeling, Machine Learning, Logistic Regression, Statistical Inference, Model Evaluation, Probability Distribution, Linear Algebra, Calculus
Build toward a degree
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Operating Systems, C (Programming Language), Performance Tuning, Virtual Machines, System Programming, Virtualization, Linux
Advanced · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Integration, Data Manipulation, Data Transformation, Relational Databases, Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: OSI Models, Network Security, TCP/IP, Network Architecture, Network Protocols, General Networking, Network Routers, Routing Protocols, Public Key Infrastructure, Network Model, Cryptography, Web Applications
Build toward a degree
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Numerical Analysis, Advanced Mathematics, Mathematical Theory & Analysis, Data Integration, Mathematical Modeling, Data Analysis, Vector Databases, Probability, Geometry, Applied Mathematics, Mechanics, Engineering Calculations, Spatial Data Analysis, Derivatives, Physics
Intermediate · Specialization · 3 - 6 Months

Starweaver
Skills you'll gain: Lean Manufacturing, Lean Methodologies, Process Mapping, Cross-Functional Collaboration, Kanban Principles, Process Analysis, Employee Engagement, Process Optimization, Operational Excellence, Operational Efficiency, Continuous Improvement Process, Quality Management, Process Improvement, Workflow Management, Leadership, Waste Minimization, Change Management
Beginner · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Structural Analysis, Structural Engineering, Architectural Engineering, Building Design, Vibrations, Civil Engineering, Engineering, Construction, SketchUp (3D Modeling Software), Mechanics, Engineering Analysis, Engineering Calculations, Mathematical Modeling, Engineering Design Process, Design, Simulation and Simulation Software, Experimentation, Materials science, 3D Modeling
Beginner · Specialization · 3 - 6 Months