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.
Duke University
Skills you'll gain: Data Ethics, Exploratory Data Analysis, Data-Driven Decision-Making, Logistic Regression, Statistical Modeling, R (Software), Web Scraping, Ggplot2, Model Evaluation, Statistical Reporting, Data Visualization Software, Predictive Modeling, Tidyverse (R Package), Data Visualization, Responsible AI, Data Transformation, R Programming, Data Science, Data Wrangling, Version Control
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Google Analytics, Web Analytics, Data-Driven Marketing, Marketing Analytics, Target Audience, Digital Analysis, Marketing Effectiveness, Data Validation, Real Time Data, Trend Analysis, Data Quality, Variance Analysis, Anomaly Detection, Benchmarking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Spark, Scala Programming, Real Time Data, Apache Hadoop, Apache Cassandra, Applied Machine Learning, Big Data, Data Processing, Application Deployment, Distributed Computing, Programming Principles, Cloud Deployment, Data Structures, Development Environment
Advanced · Course · 1 - 3 Months

Skills you'll gain: Splunk, Role-Based Access Control (RBAC), Authentications, Data Transformation, Data Processing, Distributed Computing, Data Manipulation, Security Controls, Data Access, System Configuration, Data Security, Metadata Management, Scalability
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Correlation Analysis, Probability & Statistics, Statistical Methods, Statistics, Statistical Analysis, Data Analysis, Sampling (Statistics), Data Science, Probability Distribution, Descriptive Statistics, Statistical Inference
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: SQL, SAS (Software), Query Languages, Data-Driven Decision-Making, Data Processing, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Statistical Analysis, Predictive Modeling, Advanced Analytics, R (Software), R Programming, Statistical Methods, Data Manipulation, Business Analytics, Data Analysis, Predictive Analytics, Analysis, Probability & Statistics, Analytics, Analytical Skills, Statistical Modeling, Data Analysis Software, Regression Analysis, Statistical Programming, Time Series Analysis and Forecasting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), .NET Framework, JSON, ASP.NET, Application Deployment, Maintainability, File I/O, Data Persistence, Application Frameworks, Application Development, Object-Relational Mapping, Database Application, SQL, Extensible Languages and XML, Extensible Markup Language (XML), Programming Principles, Back-End Web Development, Object Oriented Programming (OOP), Object Oriented Design, Web Development
Intermediate · Course · 1 - 3 Months

Skills you'll gain: API Design, Back-End Web Development, Secure Coding, Data Security, Application Programming Interface (API), IT Infrastructure, Application Security, Infrastructure Security, Data Integrity, Servers, Server Administration, Web Servers
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Matplotlib, Plot (Graphics), Seaborn, File I/O, Data Visualization Software, NumPy, Python Programming, Code Reusability, Pandas (Python Package), Data Analysis, Program Development, Data Import/Export, Data Processing, JSON, Package and Software Management, Data Manipulation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Secure Coding, Encryption, Network Security, Swift Programming, Mobile Security, Application Security, Data Persistence, Key Management, Data Security, Cryptography, Data Storage
Mixed · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: Claude Code, Infrastructure as Code (IaC), CI/CD, Bash (Scripting Language), PostgreSQL, Redis, Google Cloud Platform, Ubuntu, Agile Project Management, Continuous Integration, Prometheus (Software), Object Oriented Design, Data Pipelines, Linux Commands, SQL, Web Development Tools, Extract, Transform, Load, Amazon S3, Computational Logic, Software Development
Beginner · Specialization · 3 - 6 Months