Back end courses can help you learn server-side programming, database management, API development, and cloud computing. You can build skills in data modeling, performance optimization, and security practices. Many courses introduce tools like Node.js, Express, and SQL databases, along with methods for integrating third-party services and managing user authentication.

Skills you'll gain: Metasploit, Brute-force attacks, System Configuration, General Networking, Network Security, Penetration Testing, Wireless Networks, Exploitation techniques, Intrusion Detection and Prevention, Linux, Vulnerability Scanning, Linux Commands, Encryption, Network Analysis, Software Installation, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, UI Components, Interactive Design, User Interface (UI), Web Development, Business Logic
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Matplotlib, Plot (Graphics), Data Visualization, Predictive Modeling, Scientific Visualization, Pandas (Python Package), Data Visualization Software, Predictive Analytics, Statistical Visualization, Data Presentation, Data Manipulation, Data Wrangling, Regression Analysis, Data Analysis, Data Cleansing, Data Science, Applied Machine Learning, Machine Learning Algorithms, Model Evaluation, Statistical Inference
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon CloudWatch, Network Troubleshooting, Continuous Monitoring, Identity and Access Management, AWS Identity and Access Management (IAM), Encryption, Network Security, Event Monitoring, Amazon Web Services, Security Controls, Cloud Security, IT Security Architecture, Cryptography, Network Monitoring, Network Performance Management, Cyber Security Policies, Security Requirements Analysis, Governance
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Clinical Informatics, Clinical Practices, AI Enablement, Health Care Procedure and Regulation, Healthcare Industry Knowledge, Health Care, Artificial Intelligence, Data-Driven Decision-Making, AI Workflows, Artificial Intelligence and Machine Learning (AI/ML), Health Administration, Generative AI Agents, Predictive Analytics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Financial Statement Analysis, Financial Analysis, Income Statement, Financial Reporting, Analysis, Financial Accounting, Equities, Case Studies, Technical Accounting, Performance Analysis, Key Performance Indicators (KPIs), Finance, Accounting, Securities (Finance), Decision Making
Mixed · Course · 1 - 4 Weeks

Niel Asher Education
Skills you'll gain: Manual Therapy, Patient Evaluation, Neurology, Rehabilitation, Physical Therapy, Pain Management, Exercise Therapy, Clinical Assessment, Meditation & Breathwork, Anatomy, Respiration, Cognitive Behavioral Therapy, Patient Education And Counseling, Physiology, Athletic Training, Stress Management, Mental Health Therapies
Intermediate · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Design Elements And Principles, Graphic and Visual Design, Visual Design, Design, Design Thinking, Media and Communications, Visual Storytelling, Art History, Creative Thinking, Creativity, Psychology
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Brand Strategy, Brand Marketing, Brand Management, Branding, Storytelling, Brand Loyalty, Digital Brand Strategy, Strategic Marketing, Marketing Psychology, Marketing Strategies, Target Audience, Marketing, Target Market, Diversity Marketing, Consumer Behaviour, Governance, Portfolio Management, Persona Development, Diversity and Inclusion, Value Propositions
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Transformation, Customer Analysis, Customer Insights, Data Analysis, Customer Data Management, MongoDB, Data Processing, Data Validation, Extract, Transform, Load, Financial Data, Data Import/Export, Data Pipelines, Data Integration, Code Reusability, Development Environment, Case Studies
Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Content Scheduling, Social Media Content, AI powered creativity, Anthropic Claude, Content Creation, Social Media, Generative AI, Content Development and Management, Social Media Management, Prompt Engineering, Brand Strategy, Instagram, TikTok, Content Strategy, Artificial Intelligence, Writing and Editing, Target Audience, LinkedIn, Product Promotion
Beginner · Guided Project · Less Than 2 Hours

Intermediate · Course · 1 - 4 Weeks