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.

Northeastern University
Skills you'll gain: Responsible AI, Law, Regulation, and Compliance, Oral Expression, Data Ethics, Artificial Intelligence, Research, Regulation and Legal Compliance, Scientific Methods, General Data Protection Regulation (GDPR), Ethical Standards And Conduct, Research Methodologies, Computational Logic, Governance
Mixed · Course · 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

University of Maryland, College Park
Skills you'll gain: Business Transformation, Leadership, Organizational Change, Innovation, Adaptability, Organizational Structure, Business Technologies, Digital Transformation, Organizational Strategy, AI Enablement, Operational Efficiency, Business Economics, Change Management, Communication Strategies, Agile Methodology, Decision Making
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Lean Manufacturing, Lean Six Sigma, Process Mapping, Statistical Process Controls, Six Sigma Methodology, Failure Mode And Effects Analysis, Kaizen Methodology, Process Optimization, Quality Improvement, Operational Efficiency, Process Improvement, Performance Measurement, Manufacturing Operations, Quality Management, Operational Excellence, Business Process, Statistical Analysis, Performance Metric, Waste Minimization, Kanban Principles
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Unix Commands, Unix, Unix Shell, Remote Access Systems, Scripting, Systems Administration, Operating System Administration, Command-Line Interface, IT Automation, Linux, User Accounts, File Management, File Systems, Role-Based Access Control (RBAC), File Transfer Protocol (FTP)
Intermediate · Course · 1 - 4 Weeks

University of Geneva
Skills you'll gain: Health Policy, Health Disparities, Health Equity, Healthcare Ethics, Public Health, Health Care, Research, Health Systems, Research Methodologies, Social Determinants Of Health, Community Health, Epidemiology, Cultural Responsiveness, Cultural Sensitivity, Data Collection
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

Skills you'll gain: Social Media Campaigns, Social Media Marketing, Social Media, Digital Media Strategy, Content Creation, Social Media Content, Search Engine Optimization, Social Media Strategy, Guest Relations, Hospitality, Web Analytics and SEO, Digital Marketing, Storytelling, Instagram, Key Performance Indicators (KPIs), Customer Engagement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Linux, Linux Commands, File Management, Linux Administration, Operating Systems, Unix, Command-Line Interface
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Food Safety and Sanitation, Food and Beverage, Legal Risk, Cleanliness, Restaurant Management, Restaurant Operation, Training Programs, Compliance Management, Food Quality Assurance And Control, Regulatory Compliance, Employee Training, Health And Safety Standards, Hazard Analysis, Risk Analysis, Risk Management
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Patient Evaluation, Collaboration, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Health Care, Patient Coordination, Patient Education And Counseling, Clinical Assessment, Patient-centered Care, Patient Treatment, Patient Flow, End User Training and Support, Primary Care, Telecommunications, Communication
Beginner · Specialization · 1 - 4 Weeks

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Collaboration, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Patient Positioning, Patient Coordination, Patient Education And Counseling, Clinical Assessment, Patient Treatment, Primary Care, Health Care, Health Systems, Telecommunications, Patient Evaluation, Care Management, Communication
Beginner · Specialization · 1 - 4 Weeks