Unit testing courses can help you learn the principles of test-driven development, writing effective test cases, and debugging techniques. You can build skills in identifying edge cases, ensuring code coverage, and automating tests to streamline workflows. Many courses introduce tools such as JUnit, NUnit, and pytest, that support implementing unit tests in various programming languages, allowing you to apply your skills in real coding environments.

Coursera
Skills you'll gain: A/B Testing, Key Performance Indicators (KPIs), Data-Driven Marketing, Dashboard Creation, Email Marketing, Business Metrics, Performance Metric, Performance Measurement, Dashboard, Performance Reporting, Marketing Analytics, Business Reporting, Report Writing, Content Performance Analysis, Web Analytics, Campaign Management, Google Sheets, Microsoft Excel, Data Visualization, Stakeholder Analysis
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Computer Vision, Model Optimization, Model Deployment, Performance Analysis, Performance Measurement, Data Pipelines, Quality Assessment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Development, Microservices, Scalability, Cloud Deployment, Microsoft SQL Servers, Cloud Computing Architecture, Distributed Computing, Microsoft Visual Studio, Application Deployment, Cloud Storage, Integrated Development Environments
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Model Optimization, Simulations, Plot (Graphics)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Multi-Tenant Cloud Environments, Data Pipelines, Real Time Data, Payment Card Industry (PCI) Data Security Standards, Data Governance, Scalability, Performance Tuning, Compliance Management, Data Architecture, Performance Stress Testing, Governance, Apache, Cost Management, System Configuration, Data Storage, Computer Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Mapping, Middleware, Verification And Validation, Business Process Automation, Process Driven Development, Data Integration, Process Modeling, File Transfer Protocol (FTP), Development Testing, Java, Data Validation, Java Programming, Code Reusability, Configuration Management, Data Persistence, System Configuration, File Management, File I/O
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Graph Theory, Network Analysis, Network Model, Social Network Analysis, NoSQL, Data Store, Data Science, Query Languages, Visualization (Computer Graphics), Data Transformation, Big Data, Machine Learning Methods, Python Programming, Spatial Data Analysis, Deep Learning, Machine Learning, Machine Learning Algorithms, Quantum computing
Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: Brand Marketing, Brand Strategy, Marketing Effectiveness, Branding, Marketing Planning, Strategic Marketing, Brand Management, Marketing Strategies, Business Priorities, Campaign Management, Market Share, Marketing Analytics, Strategic Planning, Key Performance Indicators (KPIs), Case Studies, Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Model Training, System Monitoring, Continuous Monitoring, Model Deployment, Verification And Validation, Performance Metric, A/B Testing, Failure Analysis, Statistical Hypothesis Testing, Applied Machine Learning, Statistical Analysis, Scikit Learn (Machine Learning Library), Benchmarking
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Brand Awareness, Brand Management, Branding, Brand Marketing, Brand Strategy, Brand Loyalty, Data Presentation, Data Storytelling, Marketing Design, Marketing Management, Market Share, Data-Driven Decision-Making, Marketing, Visual Design, Customer Insights, Presentations, Data-Driven Marketing, Asset Management, Health Equity, Health Promotion
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Infrastructure As A Service (IaaS), Terraform, Cloud Solutions, Cloud Computing, Cloud Services, Infrastructure as Code (IaC), Cloud Management, Virtual Machines, Cloud Deployment, Load Balancing, Network Infrastructure, Virtual Networking, Data Management, Scalability, Interoperability, Virtual Private Networks (VPN)
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Cyber Security Strategy, Fraud detection, Security Awareness, Operational Risk, Cyber Governance, Digital Assets, Asset Protection, Cyber Risk, Financial Controls, Computer Security Awareness Training, Cryptographic Protocols, Risk Management Framework, Loss Prevention, Payment Systems
Beginner · Course · 1 - 3 Months