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.

Johns Hopkins University
Skills you'll gain: Software Documentation, Leaflet (Software), Data Wrangling, Data Preprocessing, Technical Documentation, Data Cleansing, Package and Software Management, Application Deployment, R (Software), Data Visualization Software, Program Development, Code Review, Plot (Graphics), Ggplot2, R Programming, GitHub, Continuous Integration, Interactive Data Visualization, Software Technical Review, Software Testing
Intermediate · Course · 1 - 3 Months

Sage Publications
Skills you'll gain: Account Management, Sales Management, Account Strategy, Customer Relationship Management, Sales Strategy, Sales, Sales Process, Sales Training, Customer Relationship Management (CRM) Software, Customer Relationship Building, Customer Retention, Budgeting, Sales Presentation, Selling Techniques, Performance Measurement, Performance Metric, Forecasting, Client Services, Strategic Marketing, Business Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, Prompt Engineering, Multimodal Prompts, Prompt Patterns, Prompt Engineering Tools, LLM Application, Fine-tuning, Model Evaluation, Context Engineering, LangChain, Token Optimization, Large Language Modeling, Hugging Face, Transfer Learning, Model Optimization, Model Deployment, Generative AI, LangGraph, Context Management, Vector Databases
Intermediate · Specialization · 3 - 6 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Interviewing Skills, Recruitment, Compensation Strategy, Compensation and Benefits, Compensation Management, Coordination, Closing (Sales), Recruitment Strategies, Full Cycle Recruitment, Negotiation, Talent Recruitment, Professional Networking, Presentations, Talent Acquisition, Professional Development, Job Evaluation, Oral Expression, Labor Compliance, Employee Onboarding, Decision Making
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: MySQL Workbench, Database Design, MySQL, Database Development, Database Systems, Relational Databases, Databases, Database Management, SQL, Data Maintenance, Data Entry, Data Manipulation, Data Analysis, Data Science
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Technical Analysis, Financial Trading, Blockchain, Market Data, Digital Assets, Key Management, Market Trend, Business Modeling, Asset Management, Financial Market, Risk Management, Financial Analysis, Trend Analysis, Strategic Thinking, FinTech, Fraud detection, Market Analysis, Investments, Due Diligence, Finance
Mixed · Course · 1 - 3 Months

Skills you'll gain: Financial Modeling, Real Estate, Financial Accounting, Property and Real Estate, Financial Reporting, Financial Statements, Financial Statement Analysis, Commercial Real Estate, Balance Sheet, Financial Analysis, Finance, Investment Banking, Private Equity, Investments, Financial Data, Forecasting, Asset Management, Banking, Tax, Regulatory Requirements
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: LangGraph, Agentic Workflows, AI Orchestration, Generative AI Agents, Agentic systems, LangChain, LLM Application, Responsible AI, Retrieval-Augmented Generation, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), Tool Calling, Software Development, Python Programming, Data Integration, Data Science
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Classification Algorithms, Analytical Skills, Data Analysis, Model Evaluation, Logistic Regression, Applied Machine Learning, Supervised Learning, Decision Tree Learning, Machine Learning Algorithms, Machine Learning Methods, Predictive Modeling, Feature Engineering, Fine-tuning, Model Training, Bayesian Statistics
Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Decision Intelligence, AI Enablement, AI Product Strategy, Decision Support Systems, Strategic Thinking, Data-Driven Decision-Making, Competitive Intelligence, Innovation, Operational Efficiency, Strategic Planning, Technology Strategies, Thought Leadership, Program Implementation, AI Integrations, Project Implementation
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Programming Principles, C++ (Programming Language), Data Structures, Computer Programming, Memory Management, Code Reusability, Program Development
Beginner · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Prompt Patterns, LLM Application, Vibe coding, Generative AI, Code Review, Generative Model Architectures, Program Development, Software Development Methodologies, Machine Learning Methods, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 4 Weeks