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.

Johns Hopkins University
Skills you'll gain: Program Evaluation, Maternal Health, Nutrition and Diet, Child Health, Social Impact, Research Methodologies, Data Collection, Epidemiology, Public Health and Disease Prevention, Health Policy, Mathematical Modeling, Statistical Modeling, Data Analysis Software
Intermediate · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Identity and Access Management, Cloud Security, Network Security, Threat Detection, Amazon S3, Infrastructure Security, Data Security, Security Management, Vulnerability Management, Vulnerability Assessments, Key Management, Distributed Denial-Of-Service (DDoS) Attacks, Encryption
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Statement Analysis, Financial Statements, Financial Analysis, Financial Reporting, Analysis, Critical Thinking, Financial Forecasting, Balance Sheet, Accounting, Forecasting, Income Statement, Annual Reports, Securities (Finance), Business Valuation, Generally Accepted Accounting Principles (GAAP), Cash Flows
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, General Networking, Virtual Machines, Web Servers, Remote Access Systems, Network Infrastructure, Network Administration, Computer Networking, Network Analysis
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Immunology, Infectious Diseases, Preventative Care, Public Health, Oncology, Molecular Biology, Microbiology, Drug Development, Pharmacology
Mixed · Course · 1 - 3 Months

Skills you'll gain: Web Design, Canva (Software), Responsive Web Design, Web Content, Usability, Visual Design, Social Media, Creative Design, Graphic Design, Graphics Software, Business
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: CI/CD, Microsoft Azure, Data Lakes, Microsoft Power Platform, Azure Synapse Analytics, Data Pipelines, Analytics, Data Governance, Advanced Analytics, Data Security, Data Management, Data Analysis Expressions (DAX), Power BI, Microsoft Excel, Exploratory Data Analysis, Apache Spark, Application Deployment, SQL, Governance, Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Vulnerability Assessments, Application Security, Vulnerability Management, Secure Coding, Hardening, Security Controls, Cybersecurity, Authorization (Computing), Cryptography, System Configuration, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Penetration Testing, Threat Management, Threat Detection, Cybersecurity, Vulnerability Scanning, Cyber Attacks, Data Ethics, Vulnerability Assessments, Security Strategy, Network Security, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Java, Performance Tuning, Spring Framework, Application Performance Management, Algorithms, JUnit, OS Process Management, Application Frameworks, Programming Principles, Performance Testing, Spring Boot, Computer Architecture
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Infant Care, Child Health, Maternal Health, Child Development, Safety Standards, Accident Prevention, Patient Education And Counseling, Caregiving, Family Support
Beginner · Course · 1 - 4 Weeks