Information retrieval courses can help you learn search algorithms, indexing techniques, and data mining strategies. You can build skills in evaluating search results, optimizing query performance, and understanding user intent. Many courses introduce tools like Elasticsearch, Apache Solr, and various machine learning libraries, showing how these technologies enhance information retrieval processes and improve the accuracy of search results.

Skills you'll gain: Conversion Funnel Analysis, Web Analytics, Google Analytics, Ad Hoc Reporting, Customer Analysis, E-Commerce, Marketing Analytics, Event Monitoring, Performance Analysis, Performance Reporting
★ 4.3 (16) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Secure Coding, Application Security, Authorization (Computing), Authentications, Data Validation, Role-Based Access Control (RBAC), Security Controls, Configuration Management, Package and Software Management, Cybersecurity, Identity and Access Management, Software Installation, Computer Programming, Information Technology
★ 4.6 (19) · Beginner · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Penetration Testing, Metasploit, Exploitation techniques, Exploit development, Vulnerability Scanning, Security Testing, Technical Communication, Scripting, Technical Writing, Security Engineering, Technical Documentation, Bash (Scripting Language), Code Review, Security Requirements Analysis, Windows PowerShell, Security Awareness, Python Programming, Linux, Persistence, Applicant Tracking Systems
Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Prompt Engineering, Prompt Patterns, Retrieval-Augmented Generation, LLM Application, Generative AI Agents, AI Workflows, LangChain, Model Context Protocol, Vector Databases, AI Orchestration, Agentic Workflows, Tool Calling, Artificial Intelligence and Machine Learning (AI/ML), LangGraph, Large Language Modeling, Agentic systems, Embeddings, Model Deployment, Artificial Intelligence, Application Performance Management
Intermediate · Specialization · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Balance Sheet, Financial Statements, Financial Statement Analysis, Financial Reporting, Financial Accounting, Accounting, Equities, Asset Management
★ 4.8 (1.4K) · Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Cyber Threat Intelligence, Cyber Threat Hunting, Threat Detection, Vulnerability Assessments, Threat Management, Event Monitoring, Intrusion Detection and Prevention, Security Information and Event Management (SIEM), Computer Security Incident Management, Continuous Monitoring, Incident Response, Security Awareness, Security Management, Malware Protection, Network Security, Network Analysis, Network Monitoring
★ 4.8 (40) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Excel Formulas, Spreadsheet Software, Microsoft Excel, Financial Modeling, Auditing, Procedure Development, Debugging, Project Documentation, Data Integrity, Data Security
Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cyber Security Strategy, Cyber Threat Intelligence, Threat Management, Network Model, IT Security Architecture, Exploitation techniques, Security Controls, Security Awareness, System Design and Implementation, Cryptography, Resilience, Service Recovery
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon DynamoDB, Amazon S3, Amazon Elastic Compute Cloud, API Gateway, Serverless Computing, Cloud API, Application Programming Interface (API), Identity and Access Management, Amazon Web Services, Cloud-Based Integration, Authentications, Authorization (Computing), NoSQL, Cloud Storage, Cloud Hosting, Data Storage
★ 4.6 (33) · Beginner · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Sales Management, Sales Strategy, Customer Engagement, Sales Process, Sales, Sales Training, Selling Techniques, Case Studies, Sales Support, Sales Enablement, Business Planning, Conflict Management, Marketing, Marketing Planning, General Sales Practices, Strategic Marketing, Market Intelligence, Product Planning, Customer Analysis, Competitive Intelligence
★ 4.5 (538) · Intermediate · Specialization · 3 - 6 Months

Unilever
Skills you'll gain: Data Governance, Descriptive Analytics, Data Storytelling, Supply Chain, Data Presentation, Supply Chain Management, Demand Planning, Data Literacy, Presentations, Supply Chain Systems, Supply Chain Planning, Process Improvement, Data Management, Process Improvement and Optimization, Data Lakes, Predictive Analytics, Transportation, Supply Chain, and Logistics, Data Analysis, Data Visualization, Problem Solving
★ 4.7 (666) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Ansible, Package and Software Management, YAML, Configuration Management, System Configuration, Linux Administration, Unix, IT Automation, Automation, Web Applications, Unix Shell, Code Reusability, File Management, Cloud Infrastructure, DevOps, User Accounts
★ 4 (29) · Beginner · Course · 1 - 4 Weeks