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.

AI CERTs
Skills you'll gain: Supply Chain, Supply Chain Management, Inventory Management System, Supply Chain Planning, Inventory Management, Demand Planning, Inventory Control, Supply Management, Customer Demand Planning, Forecasting, Logistics, Supplier Management, Logistics Management, AI Enablement, Supplier Relationship Management, Risking, Artificial Intelligence, Business Risk Management, Artificial Intelligence and Machine Learning (AI/ML), Generative AI Agents
★ 3.3 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: AI Workflows, Prompt Engineering Tools, Agentic Workflows, Deepseek, Automation, Agentic systems, AI Integrations, Memory Management
Intermediate · Course · 3 - 6 Months

Akamai Technologies, Inc.
Skills you'll gain: SQL, Database Management, Relational Databases, Database Systems, Databases, Database Administration, Database Development, Database Design, Database Theory, Data Manipulation, Query Languages, Data Management, Data Analysis
★ 4.8 (35) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Model Training, Model Optimization, Statistical Machine Learning, Scikit Learn (Machine Learning Library), Applied Machine Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Overcoming Objections, Sales Process, Closing (Sales), Value Propositions, Rapport Building, Active Listening, Selling Techniques, Sales Presentation, Prospecting and Qualification, Digital Transformation, General Sales Practices, Sales Presentations, Business Communication, Sales, Technical Sales, Data Centers, Phone Sales, Sales Development, Inside Sales, Outside Sales
★ 4.8 (36) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Frontend Integration, Restful API, Spring Boot, Full-Stack Web Development, React.js, IntelliJ IDEA, Spring Framework, Object-Relational Mapping, Web Services, JavaScript Frameworks, Front-End Web Development, YAML, Web Applications, Back-End Web Development, Data Access, Database Application, User Interface (UI), Context Management, Application Programming Interface (API), Databases
★ 4.7 (28) · Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Mobile Development, React Native, Application Development, User Story, Mobile Development Tools, Flutter (Software), User Interface and User Experience (UI/UX) Design, User Interface (UI), Data Persistence, User Interface (UI) Design, Figma (Design Software), Application Deployment, Application Programming Interface (API), Software Development, GitHub, Git (Version Control System)
★ 4.8 (25) · Advanced · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: JUnit, File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Java, Unit Testing, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Application Development, Authentications, Code Reusability, Android Development, Application Design, Debugging, Performance Tuning
★ 4.6 (84) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Generative AI, Generative Model Architectures, Large Language Modeling, AI literacy, LLM Application, Responsible AI, Unstructured Data, Artificial Intelligence and Machine Learning (AI/ML), AI Security, Machine Learning, Business Solutions, Data Access, Data Quality
★ 4.1 (10) · Beginner · Course · 1 - 4 Weeks

Knowledge Accelerators
Skills you'll gain: Microsoft 365, Project Management, Project Coordination, Coordinating, Project Planning, Project Schedules, Leadership and Management, Project Management Software, Calendar Management, Project Implementation, Collaborative Software, Delegation Skills, Workflow Management, Productivity, Productivity Software, Data Management, Business Software
★ 3.8 (8) · Beginner · Course · 1 - 3 Months

Dubai College of Tourism
Skills you'll gain: Revenue Management, Market Share, Hotel Operations, Hotels and Accommodations, Market Intelligence, Competitive Analysis, Hospitality Management, Market Analysis, Key Performance Indicators (KPIs), Market Data, Benchmarking, Competitive Intelligence, Market Research, Hospitality, Performance Analysis, Performance Measurement, Technology Strategies, Data Analysis, Strategic Thinking, Data Visualization
★ 4.4 (12) · Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Cloud Computing, Cloud Solutions, Cloud Engineering, Amazon CloudWatch, Cloud Computing Architecture, Identity and Access Management, Data Migration
Beginner · Course · 1 - 3 Months