billing systems , Algorithms, Software Development, Testing, Software Design, Programming Languages, Distributed Systems, data structures, subscription management best practices, cloud billing architecture, accessible technologies, subscription lifecycle management, financial transaction processing

Nunit, Design Patterns, Page Object Model, Mstest, Appium, Json, Solid Principles, Automation Framework Development, Git, Xml, Selenium, Postman, Rest Apis, Xunit, Python, Data-driven testing, Playwright, FLAUI, Winapp driver

Agile Development, Debugging, Version Control Systems, IFS Solutions, quality assurance practices, Troubleshooting, modern frameworks, software testing methodologies, optimizing software components, modern programming languages, collaborative development tools