Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.

Qualcomm Academy
Skills you'll gain: Wireless Networks, Telecommunications, Emerging Technologies, Communication Systems, Internet Of Things, Digital Communications, Data Security, Technology Strategies, Network Infrastructure, Virtualization
★ 4.8 (733) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: R Programming, Statistical Analysis, Statistical Methods, Combinatorics, Statistical Programming, Data Analysis, Probability, Probability Distribution, Applied Machine Learning, Probability & Statistics, Bayesian Statistics, Data Science, Simulations
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Descriptive Statistics, A/B Testing, Classification And Regression Tree (CART), Dashboard, Dashboard Creation, Model Evaluation, Model Deployment, Data-Driven Decision-Making, Risk Analysis, Histogram, Statistical Inference, Descriptive Analytics, Simulations, Predictive Modeling, Regression Analysis, Data Visualization, MLOps (Machine Learning Operations), Decision Making, Decision Tree Learning, Keras (Neural Network Library)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: React.js, Frontend Performance, Context Management, Front-End Web Development, JavaScript Frameworks, UI Components, Data Persistence, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Saïd Business School, University of Oxford
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI, Generative AI Agents, Prompt Patterns, Agentic Workflows, Responsible AI, Generative Model Architectures, Multimodal Prompts, AI Enablement, Artificial Neural Networks, Data Ethics, Governance, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, Business Ethics, Risk Management, Machine Learning, Project Management
★ 4.8 (364) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: React Native, UI Components, Mobile Development, Responsive Web Design, User Interface (UI), User Interface (UI) Design, Debugging, React Redux, Figma (Design Software), Mobile Development Tools, Development Environment, Application Programming Interface (API), Animations, Javascript
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: FinTech, Financial Regulation, Financial Services, Payment Systems, Financial Regulations, Commercial Lending, Financial Industry Regulatory Authorities, Bank Regulations, Lending and Underwriting, Banking, Banking Services, Consumer Lending, Regulatory Compliance, Blockchain, Law, Regulation, and Compliance, Legal Risk, Payment Processing, Financial Data, Digital Assets, Regulatory Requirements
★ 4.8 (907) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Preprocessing, Logistic Regression, Data Cleansing, Apache Spark, PySpark, Data Manipulation, Applied Machine Learning, Predictive Modeling, Data Science, Machine Learning, Python Programming
★ 4.6 (22) · Intermediate · Guided Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Prompt Patterns, Database Design, LLM Application, Database Development, Software Documentation, Software Design Patterns, Vibe coding, Databases, Collaborative Software, Software Testing, OpenAI API, Application Design, Technical Documentation, AI Integrations, Generative AI, Software Engineering, Software Development, Machine Learning
★ 4.6 (825) · Beginner · Professional Certificate · 1 - 3 Months

Skills you'll gain: Middleware, React Redux, React.js, Scalability, Application Programming Interface (API), Maintainability, Context Management, Frontend Performance
Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Prompt Engineering, Vector Databases, Embeddings, System Monitoring, Application Security, Fine-tuning, Artificial Intelligence, Model Evaluation
★ 4.8 (196) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Derivatives, Financial Trading, Risk Management, Futures Exchange, Financial Market, Securities Trading, Risk Mitigation, Market Data, Risk Analysis, Finance, Market Dynamics, Profit and Loss (P&L) Management
Mixed · Course · 1 - 3 Months